[User] Can you explain the process of generating a mnemonic in Solana using the bip39 library?

[Assistant]
Certainly! To generate a mnemonic in Solana using the `bip39` library, you can follow these steps:

1. **Install the bip39 library**: Make sure you have the `bip39` library installed in your project. You can do this using npm or yarn:

   ```bash
   npm install bip39
   ```

   or

   ```bash
   yarn add bip39
   ```

2. **Generate a Mnemonic**: You can use the `generateMnemonic` function from the `bip39` library to create a mnemonic phrase. This phrase will consist of a series of readable words that can be used to derive a keypair.

Here’s a simple example of how to generate a mnemonic:

```typescript
import * as bip39 from "bip39";

// Generate a mnemonic
const mnemonic = bip39.generateMnemonic();
console.log("Generated Mnemonic: ", mnemonic);
```

In this code snippet, the `generateMnemonic` function creates a new mnemonic phrase, which is then logged to the console.

This mnemonic can be used to derive a keypair for Solana wallets, making it easier for users to manage their keys in a more human-readable format.

ss(key));

// // Valid public key
const offCurveAddress = "4BJXYkfvg37zEmBbsacZjeQDpTNx91KppxFJxRqrz48e";

// // Not on the ed25519 curve, therefore not suitable for users
console.log("Valid Off Curve Address: ", isAddress(offCurveAddress));

// // Not a valid public key
const errorPubkey = "testPubkey";
console.log("Invalid Address: ", isAddress(errorPubkey));

How to Generate Mnemonics for Keypairs
One way to generate a Keypair is through the use of a Mnemonic. Mnemonics are generally used to make the user experience within wallets better than a Keypair file by using a list of readable words (instead of a shorter string of random numbers and letters).

generate-mnemonic.ts
import * as bip39 from "bip39";

const mnemonic = bip39.generateMnemonic();

How to Restore a Keypair from a Mnemonic
Many wallet extensions use mnemonics to represent their secret keys. You can convert the mnemonic to Keypairs for local testing.

Restoring BIP39 format mnemonics #
restore-bip39-mnemonic.ts
import { Keypair } from "@solana/web3.js";
import * as bip39 from "bip39";

const mnemonic =
  "pill tomorrow foster begin walnut borrow virtual kick shift mutual shoe scatter";

// arguments: (mnemonic, password)
const seed = bip39.mnemonicToSeedSync(mnemonic, "");
const keypair = Keypair.fromSeed(seed.slice(0, 32));

console.log(`${keypair.publicKey.toBase58()}`);

// output: 5ZWj7a1f8tWkjBESHKgrLmXshuXxqeY9SYcfbshpAqPG

Restoring BIP44 formant mnemonics #
restore-bip44-mnemonic.ts
import { K


[User] What is the expected response code for a successful webhook creation request in Helius?

[Assistant]
The expected response code for a successful webhook creation request in Helius is **200**.

In addition, the response body will include details such as `webhookID`, `wallet`, `webhookURL`, `transactionTypes`, `accountAddresses`, `webhookType`, and `authHeader`. Here’s an example of the response structure:

```json
{
  "webhookID": "text",
  "wallet": "text",
  "webhookURL": "text",
  "transactionTypes": [
    "UNKNOWN"
  ],
  "accountAddresses": [
    "text"
  ],
  "webhookType": "text",
  "authHeader": "text"
}
```

      "Content-Type": "application/json"
    },
    body: JSON.stringify({}),
});
const data = await response.json();
Test it
Response

200
Copy
{
  "webhookID": "text",
  "wallet": "text",
  "webhookURL": "text",
  "transactionTypes": [
    "UNKNOWN"
  ],
  "accountAddresses": [
    "text"
  ],
  "webhookType": "text",
  "authHeader": "text"
}
Code Examples
Copy
{
     "webhookURL": "https://TestServer.test.repl.co/webhooks",
     "transactionTypes": ["NFT_SALE"],
     // Use ["ACCOUNT_ADDRESS", "ACCOUNT_ADDRESS"] for multiple accountAddresses.
     "accountAddresses": ["ACCOUNT_ADDRESS"],
     "webhookType": "enhanced", // "enhancedDevnet"
     "authHeader": "<Optional_AuthHeader>"
}
Copy
{
     "webhookURL": "https://TestServer.test.repl.co/webhooks",
     "transactionTypes": ["Any"],
     // Use ["ACCOUNT_ADDRESS", "ACCOUNT_ADDRESS"] for multiple accountAddresses.
     "accountAddresses": ["ACCOUNT_ADDRESS"],
     "webhookType": "raw", // "rawDevnet"
     "txnStatus": "all", // success/failed
     "authHeader": "<Optional_AuthHeader>"
}
Copy
{
     "webhookURL": "https://discord.com/api/webhooks/<WebhookID>/<TokenID>",
     "transactionTypes": ["NFT_SALE"],
     // Use ["ACCOUNT_ADDRESS", "ACCOUNT_ADDRESS"] for multiple accountAddresses.
     "accountAddresses": ["ACCOUNT_ADDRESS"],
     "webhookType": "discord" // "discordDevnet"
}
Copy
const createWebhook = async () => {
    try {
      const response = await fetch(
        "https://api.helius.xyz/v0/webhooks?api-ke


[User] Which version of transactions must be used to utilize an Address Lookup Table in Solana?

[Assistant] To utilize an Address Lookup Table in Solana, developers must use versioned transactions, specifically the v0 transactions that were introduced with the new Versioned Transaction format.

ould now be able to raise that limit to 64 addresses per transaction.

Compressing onchain addresses #
After all the desired addresses have been stored onchain in an Address Lookup Table, each address can be referenced inside a transaction by its 1-byte index within the table (instead of their full 32-byte address). This lookup method effectively "compresses" a 32-byte address into a 1-byte index value.

This "compression" enables storing up to 256 addresses in a single lookup table for use inside any given transaction.

Versioned Transactions #
To utilize an Address Lookup Table inside a transaction, developers must use v0 transactions that were introduced with the new Versioned Transaction format.

How to create an address lookup table #
Creating a new lookup table with the @solana/web3.js library is similar to the older legacy transactions, but with some differences.

Using the @solana/web3.js library, you can use the createLookupTable function to construct the instruction needed to create a new lookup table, as well as determine its address:

const web3 = require("@solana/web3.js");

// connect to a cluster and get the current `slot`
const connection = new web3.Connection(web3.clusterApiUrl("devnet"));
const slot = await connection.getSlot();

// Assumption:
// `payer` is a valid `Keypair` with enough SOL to pay for the execution

const [lookupTableInst, lookupTableAddress] =
  web3.AddressLookupTableProgram.createLookupTable({
    authority: payer.publicKey,
    payer


[User] What type of scenarios can benefit from using the 'getHighestSnapshotSlot' method in Tatum?

[Assistant]
The `getHighestSnapshotSlot` method can be beneficial in several scenarios, including:

1. **Data Synchronization**: When setting up a new node, knowing the highest snapshot slot helps estimate the amount of data that needs to be downloaded to sync the node with the current state of the blockchain. This can optimize the initial setup time and resource usage.

2. **Data Management**: Developers can use the highest snapshot slot information to manage data storage more effectively. By understanding the latest available snapshots, they can decide which data to retain or discard, ensuring efficient use of storage resources.

3. **Node Maintenance**: For ongoing maintenance of a blockchain node, this method allows developers to check if the node is up to date with the latest snapshots. If the highest snapshot slot is not current, they can take necessary actions to update the node.

4. **Incremental Updates**: If the highest incremental snapshot slot is available, developers can utilize this information to apply only the necessary updates to their node, rather than downloading the entire blockchain data, thus saving bandwidth and time.

Overall, the `getHighestSnapshotSlot` method aids in optimizing the performance and efficiency of blockchain node operations.

hestSnapshotSlot()

await tatum.destroy() // Destroy Tatum SDK - needed for stopping background jobs
Overview
The getHighestSnapshotSlot method provides the highest slot information for which the node has snapshots. It determines the highest full snapshot slot and, if available, the highest incremental snapshot slot based on the full snapshot slot.

This method can be used in a variety of scenarios, including managing data storage and synchronisation of blockchain data. By knowing the highest snapshot slot, developers can estimate the amount of data that needs to be downloaded to sync a new node, or to ensure the node is up to date with the current state of the blockchain.

Parameters
None

Return Object
When the node has a snapshot, this method returns a JSON object with the following fields:

full: The highest full snapshot slot.
incremental: The highest incremental snapshot slot based on the full snapshot slot, if available.
JSON-RPC Request Example
JSON

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "getHighestSnapshotSlot"
}
JSON-RPC Response Example
Here is an example response when the node has a snapshot:

JSON

{
  "jsonrpc": "2.0",
  "result": {
    "full": 100,
    "incremental": 110
  },
  "id": 1
}
In case the node does not have a snapshot, the response would be:

JSON

{
  "jsonrpc": "2.0",
  "error": { "code": -32008, "message": "No snapshot" },
  "id": 1
}
Updated about 2 months ago

gettokenaccountbalance
getfeeformessage
Did this page help you?

getfeeformess


[User] How does Solana handle the creation of a message account in the provided code?

[Assistant]
In the provided code snippet, the creation of a message account in Solana is handled through a series of steps involving the use of the Anchor framework. Here's a detailed breakdown of the process:

1. **Define the Message**: A message string is defined, which in this case is "Hello, World!".
   ```javascript
   const message = "Hello, World!";
   ```

2. **Send a Transaction**: A transaction is sent to invoke the `create` instruction of the program. This instruction is responsible for creating the message account. The `messageAccount` is specified as an account that will be created or modified in the transaction.
   ```javascript
   const transactionSignature = await program.methods
     .create(message)
     .accounts({
       messageAccount: messagePda,
     })
     .rpc({ commitment: "confirmed" });
   ```

   - `program.methods.create(message)`: This calls the `create` method of the program, passing the message as an argument.
   - `.accounts({ messageAccount: messagePda })`: This specifies the accounts involved in the transaction, where `messagePda` is the public address of the message account being created.
   - `.rpc({ commitment: "confirmed" })`: This sends the transaction to the Solana network and waits for confirmation.

3. **Fetch the Created Account**: After the transaction is sent and the account is created, the code fetches the newly created message account using its address (`messagePda`).
   ```javascript
   const messageAccount = await program.account.messageAccount.fetch(
     messagePda,
     "confirmed"
   );
   ```

4. **Log the Account Data and Transaction Signature**: Finally, the code logs the fetched message account data and provides a link to view the transaction details on Solana's transaction explorer.
   ```javascript
   console.log(JSON.stringify(messageAccount, null, 2));
   console.log(
     "Transaction Signature:",
     `https://solana.fm/tx/${transactionSignature}?cluster=devnet-solana`
   );
   ```

In summary, the code demonstrates how to create a message account on Solana by sending a transaction that invokes a program method, fetching the account data, and logging the results.

nature}?cluster=devnet-solana`,
  );
});

Diff
- it("Create Message Account", async () => {});

+ it("Create Message Account", async () => {
+   const message = "Hello, World!";
+   const transactionSignature = await program.methods
+     .create(message)
+     .accounts({
+       messageAccount: messagePda,
+     })
+     .rpc({ commitment: "confirmed" });
+
+   const messageAccount = await program.account.messageAccount.fetch(
+     messagePda,
+     "confirmed"
+   );
+
+   console.log(JSON.stringify(messageAccount, null, 2));
+   console.log(
+     "Transaction Signature:",
+     `https://solana.fm/tx/${transactionSignature}?cluster=devnet-solana`
+   );
+ });

Explanation
First, we send a transaction that invokes the create instruction, passing in "Hello, World!" as the message.

anchor.test.ts
const message = "Hello, World!";
const transactionSignature = await program.methods
  .create(message)
  .accounts({
    messageAccount: messagePda,
  })
  .rpc({ commitment: "confirmed" });

Once the transaction is sent and the account is created, we then fetch the account using its address (messagePda).

anchor.test.ts
const messageAccount = await program.account.messageAccount.fetch(
  messagePda,
  "confirmed",
);

Lastly, we log the account data and a link to view the transaction details.

anchor.test.ts
console.log(JSON.stringify(messageAccount, null, 2));
console.log(
  "Transaction Signature:",
  `https://solana.fm/tx/${transactionSignature}?cluster=devnet-solana`,
);

In


[User] How can a user request a copy of the appropriate safeguards for data transfer from Jupiter?

[Assistant]
A user can request a copy of the appropriate safeguards for data transfer from Jupiter by sending a prior written request. The documentation specifies that users may need to follow further instructions provided by Jupiter, which may include obligations to assume confidentiality commitments regarding the disclosure of Jupiter's proprietary and personal information of third parties, as well as the terms of their relationships with Jupiter.

If you wish to make such a request, you should contact Jupiter using the information provided in their privacy policy.

uestions about exercising any of the above rights. If You wish to learn more about the GDPR and Your rights, the Information Commissioner’s Office website is a reliable source.

7. Privacy of children
Our Interface is not directed to collect any data from people under the age of 18. We do not knowingly allow anyone under 18 years old to submit any data to our Interface. If you believe your child may have provided us with their data, you can contact us using the information in this Policy and we will delete the data from our Interface.

8. Transfer of Personal Data
Transfers to third countries shall be made subject to appropriate safeguards, namely Standard Contractual Clauses adopted by the supervisory authority and approved by the Commission. Copy of the foregoing appropriate safeguards may be obtained by you upon a prior written request sent. We may instruct you on further steps to be taken with the purpose of obtaining such a copy, including your obligation to assume confidentiality commitments in connection with being disclosed the Jupiter proprietary and personal information of third parties as well as terms of their relationships with Jupiter.

Keep in mind that the use of the Interface based on public blockchains is intended to immutably record transactions across wide networks of computer systems. Many blockchains are open to forensic analysis which can lead to deanonymization and the unintentional revelation of Personal Data, in particular when blockchain data is c


[User] How does the `checked_add` method work in the context of incrementing the counter in Solana?

[Assistant]
In the context of incrementing the counter in Solana, the `checked_add` method is used to safely perform addition on the `count` field of the `CounterAccount` struct. This method is part of Rust's standard library and is designed to prevent overflow during arithmetic operations.

Here's how it works in the provided code snippet:

```rust
counter_data.count = counter_data
    .count
    .checked_add(1)
    .ok_or(ProgramError::InvalidAccountData)?;
```

1. **Operation**: The `checked_add(1)` method attempts to add `1` to the current value of `counter_data.count`.

2. **Overflow Handling**: If the addition results in an overflow (i.e., if `counter_data.count` is at its maximum value for a `u64` and you try to add `1`), `checked_add` will return `None` instead of a value. This is crucial because it prevents the program from wrapping around to a negative number or zero, which could lead to unexpected behavior.

3. **Error Propagation**: The `ok_or(ProgramError::InvalidAccountData)?` part of the code converts the `Option<u64>` returned by `checked_add` into a `Result<u64, ProgramError>`. If the result is `None` (indicating an overflow), it will return an `Err` with `ProgramError::InvalidAccountData`, effectively stopping the execution of the program and signaling that an error has occurred.

In summary, `checked_add` is a safe way to perform addition that handles potential overflow, ensuring the integrity of the counter's value in the Solana program.

_account_info(accounts_iter)?;

    // Verify account ownership
    if counter_account.owner != program_id {
        return Err(ProgramError::IncorrectProgramId);
    }

    // Mutable borrow the account data
    let mut data = counter_account.data.borrow_mut();

    // Deserialize the account data into our CounterAccount struct
    let mut counter_data: CounterAccount = CounterAccount::try_from_slice(&data)?;

    // Increment the counter value
    counter_data.count = counter_data
        .count
        .checked_add(1)
        .ok_or(ProgramError::InvalidAccountData)?;

    // Serialize the updated counter data back into the account
    counter_data.serialize(&mut &mut data[..])?;

    msg!("Counter incremented to: {}", counter_data.count);
    Ok(())
}

// Struct representing our counter account's data
#[derive(BorshSerialize, BorshDeserialize, Debug)]
pub struct CounterAccount {
    count: u64,
}

#[cfg(test)]
mod test {
    use super::*;
    use solana_program_test::*;
    use solana_sdk::{
        instruction::{AccountMeta, Instruction},
        signature::{Keypair, Signer},
        system_program,
        transaction::Transaction,
    };

    #[tokio::test]
    async fn test_counter_program() {
        let program_id = Pubkey::new_unique();
        let (mut banks_client, payer, recent_blockhash) = ProgramTest::new(
            "counter_program",
            program_id,
            processor!(process_instruction),
        )
        .start()
        .await;


[User] In the provided code snippet, how is the amount of SOL being transferred calculated?

[Assistant]
In the provided code snippet, the amount of SOL being transferred is calculated by multiplying the desired amount in SOL by `LAMPORTS_PER_SOL`.

Here's the relevant line from the JavaScript example:

```javascript
lamports: 0.5 * LAMPORTS_PER_SOL,
```

In this case, `0.5` represents the amount of SOL to be transferred, and `LAMPORTS_PER_SOL` is a constant that defines the number of lamports in one SOL (1 SOL = 1,000,000,000 lamports). Therefore, to transfer 0.5 SOL, the code multiplies `0.5` by `LAMPORTS_PER_SOL` to convert it into lamports, which is the smallest unit of SOL used in transactions on the Solana blockchain.

In summary, the calculation for the amount of SOL being transferred is done by converting SOL to lamports using the formula:

```plaintext
lamports = amount_in_SOL * LAMPORTS_PER_SOL
```

d an optimized transaction that does not skip preflight checks

Copy
import { Helius } from "helius-sdk";
import {
  Keypair,
  SystemProgram,
  LAMPORTS_PER_SOL,
  TransactionInstruction,
} from "@solana/web3.js";

const helius = new Helius("YOUR_API_KEY");

const fromKeypair = /* Your keypair goes here */;
const fromPubkey = fromKeypair.publicKey;
const toPubkey = /* The person we're sending 0.5 SOL to */;

const instructions: TransactionInstruction[] = [
  SystemProgram.transfer({
    fromPubkey: fromPubkey,
    toPubkey: toPubkey,
    lamports: 0.5 * LAMPORTS_PER_SOL,
  }),
];

const transactionSignature = await helius.rpc.sendSmartTransaction(instructions, [fromKeypair]);
console.log(`Successful transfer: ${transactionSignature}`);
Rust SDK
The send_smart_transaction method is available in our Rust SDK for versions >= 0.1.5. To update to a more recent version of the SDK, run cargo update helius.

The following example transfers 0.01 SOL to an account of your choice. It leverages send_smart_transaction to send an optimized transaction that skips preflight checks and retries twice, if necessary:

Copy
use helius::types::*;
use helius::Helius;
use solana_sdk::{
    pubkey::Pubkey,
    signature::Keypair,
    system_instruction
};

#[tokio::main]
async fn main() {
    let api_key: &str = "YOUR_API_KEY";
    let cluster: Cluster = Cluster::MainnetBeta;
    let helius: Helius = Helius::new(api_key, cluster).unwrap();

    let from_keypair: Keypair = /* Your keypair goes h


[User] What are the implications of Magic Eden sending a Notice of Claim by certified mail?

[Assistant]
When Magic Eden sends a Notice of Claim by certified mail, it has several implications:

1. **Formal Notification**: The use of certified mail indicates that the notice is a formal communication regarding a claim or dispute. This method provides proof that the notice was sent and received, which is important for legal purposes.

2. **Address Verification**: The Notice of Claim will be sent to the address on file for the user. This means that it is crucial for users to keep their contact information updated with Magic Eden to ensure they receive any important communications.

3. **Opportunity for Resolution**: The Notice of Claim serves as a prerequisite step before either party can proceed to arbitration or small claims court. It requires both parties to engage in an informal dispute resolution process, which may lead to a resolution without the need for further legal action.

4. **Documentation of Claim**: The Notice must describe the nature and basis of the claim and specify the amount of damages or relief sought. This documentation is essential for both parties to understand the specifics of the dispute and can influence the resolution process.

5. **Tolling of Deadlines**: The statute of limitations and any filing fee deadlines are paused while the parties engage in the informal dispute resolution process. This means that the time limits for initiating legal action are extended, providing both parties with time to resolve the issue amicably.

Overall, sending a Notice of Claim by certified mail establishes a formal framework for addressing disputes and emphasizes the importance of communication and documentation in the resolution process.

gic Eden, 1209 Orange Street, Wilmington, Delaware 19801.

The Notice of Claim shall include both the mailing address and email address you would like Magic Eden to use to contact you. If Magic Eden elects to send you a Notice of Claim, it will send, by certified mail, a written Notice of Claim to your address on file. A Notice of Claim, whether sent by you or by Magic Eden, must (a) describe the nature and basis of the claim or dispute; and (b) set forth the specific amount of damages or other relief sought.

You and Magic Eden therefore agree that, after a Notice of Claim is sent but before either you or Magic Eden commence arbitration or file a claim in small claims court against the other. If you are represented by counsel, your counsel may participate in the conference as well, but you agree to fully participate in the conference. Likewise, if Magic Eden is represented by counsel, its counsel may participate in the conference as well, but Magic Eden agrees to have a company representative fully participate in the conference. The statute of limitations and any filing fee deadlines shall be tolled while the parties engage in the informal dispute resolution process required by this paragraph.

Mandatory Arbitration of Disputes. We each agree that any Dispute will be resolved solely by binding, individual arbitration or in small claims court, and not in a class, representative or consolidated action or proceeding. YOU AND MAGIC EDEN ARE EACH WAIVING THE RIGHT TO A TRIAL BY J


[User] What is the default field used for sorting listings in Magic Eden?

[Assistant] The default field used for sorting listings in Magic Eden is 'listPrice'.

ts a filtering mechanism where the elements within each inner array are logically ORed, and the resulting arrays are ANDed together at the top level. Each inner array consists of objects with two properties: traitType (a string) and value (a string). For example: [[{"traitType":"trait1", "value":"value1"},{"traitType":"trait1", "value":"value2"}]] would return listings that have "value1" OR "value2" for "trait1".

ADD array of objects
sort
string
The field to sort the listings, default 'listPrice'

listingAggMode
boolean
True to return aggregated marketplace listings, false to return just Magic Eden listings.

sort_direction
string
The direction returned elements should be sorted in, default 'asc'

paymentMints
array of strings
Filter listings by the payment mint address that the seller expects. Default to filter for listings that only accept native SOL. Use "ALL" to show all listings.

ADD string
Responses

200
success response

400
Invalid symbol

Updated about 1 year ago

Get collections
Get batch listings of a collection
Did this page help you?
Language

Shell

Node

Ruby

PHP

Python
URL

https://api-mainnet.magiceden.dev/v2
/collections/{symbol}/listings
1
curl --request GET \
2
     --url https://api-mainnet.magiceden.dev/v2/collections/symbol/listings \
3
     --header 'accept: application/json'

Try It!
RESPONSE
Click Try It! to start a request and see the response here! Or choose an example:
application/json

200

400

Get batch listings of a collection
post


[User] How can I interpret the 'data' field in Helius account transactions?

[Assistant]
In Helius account transactions, the 'data' field represents the encoded information that is associated with a specific transaction. This data is typically in a base64 or hex-encoded format and can contain various types of information depending on the context of the transaction and the program being executed.

Here’s a breakdown of how to interpret the 'data' field:

1. **Encoding**: The 'data' field is often encoded. You may need to decode it to understand the underlying information. The encoding format (base64, hex, etc.) should be specified in the documentation or inferred from the context.

2. **Contextual Meaning**: The meaning of the data can vary based on the `programIdIndex` associated with the transaction. Each program may define its own structure for the data it sends or receives. You should refer to the specific program's documentation to understand what the data represents.

3. **Example Interpretation**: For instance, if you have a transaction entry like this:
   ```json
   {
     "accounts": [0, 7],
     "data": "11119os1e9qSs2u7TsThXqkBSRVFxhmYaFKFZ1waB2X7armDmvK3p5GmLdUxYdg3h7QSrL",
     "programIdIndex": 12
   }
   ```
   - The `data` field contains a string that may represent a specific state or command relevant to the program identified by `programIdIndex` 12.
   - You would need to decode the `data` and then refer to the documentation for the program with `programIdIndex` 12 to interpret what this data means.

4. **Use Cases**: The data might include transaction details, state changes, or other relevant information that the program needs to process the transaction correctly.

In summary, to interpret the 'data' field in Helius account transactions, you need to decode it and then refer to the specific program documentation to understand its context and meaning.

    "data": "3Bxs3zx147oWJQej",
              "programIdIndex": 12
            },
            {
              "accounts": [
                2,
                8
              ],
              "data": "3Bxs3zwT1TGLhiT9",
              "programIdIndex": 12
            },
            {
              "accounts": [
                0,
                7,
                0,
                13,
                12,
                15
              ],
              "data": "1",
              "programIdIndex": 17
            },
            {
              "accounts": [
                13
              ],
              "data": "84eT",
              "programIdIndex": 15
            },
            {
              "accounts": [
                0,
                7
              ],
              "data": "11119os1e9qSs2u7TsThXqkBSRVFxhmYaFKFZ1waB2X7armDmvK3p5GmLdUxYdg3h7QSrL",
              "programIdIndex": 12
            },
            {
              "accounts": [
                7
              ],
              "data": "P",
              "programIdIndex": 15
            },
            {
              "accounts": [
                7,
                13
              ],
              "data": "6YTZgAHgNKVRJ2mAHQUYC1DgXF6dPCgbSWA5P4gZoSfGV",
              "programIdIndex": 15
            },
            {
              "accounts": [
                6,
                7,
                18
              ],
              "data": "3DdGGhkhJbjm",
              "programIdIndex": 15
            },


[User] What is the significance of the 'inactive' status parameter when retrieving historical data for coins in CoinGecko?

[Assistant]
The 'inactive' status parameter is significant when retrieving historical data for coins in CoinGecko because it allows users to access information about coins that are no longer active or have been delisted. This feature is available only for paid plan subscribers.

To retrieve historical data for inactive coins, you first need to use the `/coins/list` endpoint with the `status` parameter set to `inactive`. This will return a list of inactive coins, from which you can obtain the coin's ID. Once you have the ID, you can access historical data using the following endpoints:

- `/coins/{id}/history`
- `/coins/{id}/market_chart`
- `/coins/{id}/market_chart/range`
- `/coins/{id}/contract/{contract_address}/market_chart`
- `/coins/{id}/contract/{contract_address}/market_chart/range`

Here’s an example of how to make a request to retrieve inactive coins:

```plaintext
GET https://pro-api.coingecko.com/api/v3/coins/list?include_platform=false&status=inactive&x_cg_pro_api_key=YOUR_API_KEY
```

This request will provide you with a list of inactive coins, enabling you to further explore their historical data.

xchange rate: use /exchange_rates endpoint
Historical exchange rate: use /coins/{id}/history or /coins/{id}/market_chart endpoints
15. Get Watchlist Portfolio Data of a Coin
Use /coins/{id} endpoint by supplying coin id

Example of responses:

JSON

{
  "id": "bitcoin",
  ......
  "watchlist_portfolio_users": 1487932, 👈
  "market_cap_rank": 1,
  ......
}
16. Get Historical Data for Inactive Coins
Note: this is available for paid plan subscribers only.

Use /coins/list endpoint, specifying the status param as inactive
Example of endpoint request:
https://pro-api.coingecko.com/api/v3/coins/list?include_platform=false&status=inactive&x_cg_pro_api_key=YOUR_API_KEY
Retrieve the coin's ID from the endpoint mentioned above and use it to access historical data via the following endpoints
/coins/{id}/history
/coins/{id}/market_chart
/coins/{id}/market_chart/range
/coins/{id}/contract/{contract_address}/market_chart
/coins/{id}/contract/{contract_address}/market_chart/range
17. Get TVL (Total Value Locked) data of a Coin
Use /coins/{id} endpoint by supplying coin id
Example of responses:
JSON

 "total_value_locked":
 {
    "btc": 72324,
    "usd": 4591842314
 }
18. Query Search for Coins, Categories, NFTs, Exchanges, and Pools
We have 2 Search endpoints:

/search endpoint allows you to search for coins, categories, exchanges (markets), and NFTs listed on CoinGecko.com. You may query by name or symbol.
/search-pools endpoint allows you to search for pools listed on GeckoTerminal.com. Yo


[User] How does the 'Close Account' example in Solana help developers understand account management?

[Assistant]
The 'Close Account' example in Solana is designed to help developers understand account management by demonstrating how to properly close accounts and reclaim the associated rent. This is an important aspect of managing accounts on the Solana blockchain, as it allows developers to free up resources and optimize the use of accounts within their programs.

In this example, developers learn the following key concepts:

1. **Account Closure**: The example illustrates the process of closing an account, which is essential for managing the lifecycle of accounts in Solana. Closing an account allows developers to release the lamports (the native currency of Solana) that were allocated for rent, thereby reclaiming those funds.

2. **Rent Mechanism**: Solana employs a rent mechanism for accounts, where accounts must maintain a minimum balance to avoid being purged. Understanding how to close accounts effectively helps developers manage their accounts to ensure they are not incurring unnecessary costs.

3. **Best Practices**: The example serves as a guide for best practices in account management, including when and how to close accounts, which can help prevent resource leaks in applications.

By following the 'Close Account' example, developers gain practical insights into account management, which is crucial for building efficient and cost-effective applications on the Solana blockchain.

tains a list of examples that we would love to see as contributions.

Within the repo you will find the following subfolder, each with assorted example programs within them:

Basics
Compression
Oracles
Tokens
Token 2022 (Token Extensions)
Break
Build and Run
Basics #
Contains a series of examples that demonstrate the foundational steps for building Solana programs using native Rust libraries. These examples are designed to help developers understand the core concepts of Solana programming.

Example Name	Description	Language
Account Data	Saving an address with name, house number, street and city in an account.	Native, Anchor
Checking Accounts	Security lessons that shows how to do account checks	Native, Anchor
Close Account	Show you how to close accounts to get its rent back.	Native, Anchor
Counter	A simple counter program in all the different architectures.	Native, Anchor, mpl-stack
Create Account	How to create a system account within a program.	Native, Anchor
Cross Program Invocation	Using a hand and lever analogy this shows you how to call another program from within a program.	Native, Anchor
hello solana	Hello world example which just prints hello world in the transaction logs.	Native, Anchor
Pda Rent payer	Shows you how you can use the lamports from a PDA to pay for a new account.	Native, Anchor
Processing Instructions	Shows you how to handle instruction data string and u32.	Native, Anchor
Program Derived Addresses	Shows how to use seeds to refer to a PDA and save data in


[User] Can the reward period for a farm in Raydium be shortened by the farm owner?

[Assistant] No, the reward period for a farm in Raydium cannot be shortened by the farm owner. While the farm owner has the ability to extend the reward period, they cannot reduce it.

 tokens.

If you are unfamiliar with the concept of impermanent loss, reviewing this article for a basic understanding is highly recommended.

Liquidity Provider (LP) tokens represent a proportional share of a liquidity pool. For instance, if you contribute to the SOL-RAY pool, you will receive SOL-RAY liquidity pool tokens (LP tokens). If you have deposited liquidity, you can see these tokens in your wallet.

Ecosystem farms are Raydium's new permissionless farms for traditional AMM pools.

They further the decentralization of liquidity on Solana by enabling any project team or user to create a farm and bootstrap liquidity by offering reward emissions on any pool!

On the farm page, place your cursor on the token symbol under pending rewards to display the reward period.

The reward can be extended by the farm owner. However, it can not be shortened.

Your LP tokens are under the 'standard' tab under my positions on the portfolio page.

If you staked LP tokens before the release of Raydium V2 in March 2022, access the V1 farm page by clicking 'Raydium V1' at the bottom of the navigation bar.

If you can't find them, contact the Raydium discord or telegram for 24/7 support!

Yes! the maker fees are directly compounded in the value of the LP tokens.

CLMM pools
CLMMs - Concentrated Liquidity Market Makers - are designed for advanced liquidity provision on DEXs. While the past iterations of Raydium's liquidity pools work on the constant product model with liquidity provi


[User] What is the deprecated method in QuickNode that is no longer available on Devnet and Testnet?

[Assistant] The deprecated method in QuickNode that is no longer available on Devnet and Testnet is the method for retrieving transaction signatures for a specific account address. This method will also be removed from Mainnet soon. For similar functionality, users are advised to use Solana's `getSignaturesForAddress` RPC method instead.

dated on
Aug 21, 2024
Please note that this method is deprecated, no longer available on Devnet and Testnet, and will be removed from Mainnet soon. For a similar method you can use Solana's getSignaturesForAddress RPC method.
Parameters
acc_add
string
The account address as base-58 encoded string
object
array
The configuration object with the following fields:
limit
integer
(default: 1000) The maximum number of transaction signatures to return. The valid range is between 1 and 1,000
before
string
A base58-encoded transaction signature. If provided, the method will only return signatures that occurred before the specified transaction
until
string
A base58-encoded transaction signature. If provided, the method will only return signatures that occurred at or before the specified transaction
commitment
string
(default: finalized) The level of commitment required for the query. The options include:
finalized
string
The node will query the most recent block confirmed by the supermajority of the cluster as having reached maximum lockout, meaning the cluster has recognized this block as finalized
confirmed
string
The node will query the most recent block that has been voted on by the supermajority of the cluster
Returns
result
An array of transaction signature information, ordered from newest to oldest transaction:
blockTime
The estimated production time, as Unix timestamp (seconds since the Unix epoch) of when transaction was processed. It's null if not available
confirmationStatus


[User] What is the value of taxBps in Jupiter and how does it influence the fees for non-stablecoin transactions?

[Assistant]
The value of `taxBps` in Jupiter is a fee that is determined based on the difference between the current and target weightage of non-stablecoin tokens. A larger difference between the current weightage and the target weightage results in a higher tax fee.

For non-stablecoin transactions, the swap fee is calculated as follows:

```
swap fee = swapBps ± taxBps
```

This means that the `taxBps` can either increase or decrease the total swap fee depending on the weightage difference. If the current weightage is significantly different from the target weightage, the tax fee (and thus the total swap fee) will be higher, which encourages liquidity providers to maintain the target weightage.

ap is hit.
tokenWeightageBufferBps: The token weightage buffer (in BPS) to calculate the token's maximum or minimum current weightage based on the target weightage. Currently, tokenWeightageBufferBps is set to 2000 which means the current weightage cannot be lower of higher than + / - 20% of the token's target weightage. For example, if SOL's target weightage for the JLP pool is 50%, the current weightage cannot be less than 40% or exceed 60%. The pool will not allow deposits or withdrawals if the action causes the token to exceed its target weightage.
maxPositionUsd: Sets the maximum position size for the Jupiter Perpetuals exchange. The current maxPositionUsd value is 2500000000000 which means a position's max size is $2,500,000.
fees: Sets the fee amounts or percentages for the Jupiter Perpetuals exchange.

increasePositionBps: A fixed fee of 6 BPS (0.06%) is charged for opening or increasing a position.
decreasePositionBps: A fixed fee of 6 BPS (0.06%) is charged for closing or decreasing a position.
addRemoveLiquidityBps: Fee charged when adding or removing liquidity to/from the pool.
swapBps: Swap fee for exchanging non-stablecoin tokens routed through the liquidity pool.
For stablecoins: swap fee = stableSwapBps ± stableSwapTaxBps
For non-stablecoins: swap fee = swapBps ± taxBps
taxBps: Tax fee for non-stablecoins, determined based on the difference between the current and target weightage. A larger difference results in a higher tax fee, encouraging liquidity provider


[User] What is the purpose of the 'MessageAccount' struct in Solana?

[Assistant]
The `MessageAccount` struct in Solana serves the purpose of defining the data structure for a message account that users can create. It contains three fields:

1. **user**: A `Pubkey` representing the user who created the message account.
2. **message**: A `String` that holds the user's message.
3. **bump**: A `u8` that stores the "bump" seed used in deriving the program derived address (PDA).

This struct is essential for serializing and storing data in the message account's data field when an account is created. It allows the program to manage user-generated messages effectively and ensures that the necessary information is stored in a structured format. When reading from the account, this data can be deserialized back into the `MessageAccount` type, facilitating the retrieval and use of the stored messages.

 field).

In this example, we're defining a MessageAccount struct to store a message created by users that contains three fields:

user - A Pubkey representing the user who created the message account.
message - A String containing the user's message.
bump - A u8 storing the "bump" seed used in deriving the program derived address (PDA). Storing this value saves compute by eliminating the need to rederive it for each use in subsequent instructions. When an account is created, the MessageAccount data will be serialized and stored in the new account's data field.
Later, when reading from the account, this data can be deserialized back into the MessageAccount data type. The process of creating and reading the account data will be demonstrated in the testing section.

Build the program again by running build in the terminal.

Terminal
build

We've defined what our message account will look like. Next, we'll implement the program instructions.

Implement Create Instruction #
Now, let's implement the create instruction to create and initialize the MessageAccount.

Start by defining the accounts required for the instruction by updating the Create struct with the following:

lib.rs
#[derive(Accounts)]
#[instruction(message: String)]
pub struct Create<'info> {
    #[account(mut)]
    pub user: Signer<'info>,

    #[account(
        init,
        seeds = [b"message", user.key().as_ref()],
        bump,
        payer = user,
        space = 8 + 32 + 4 + message.len() + 1
    )]
    pub


[User] What is the benefit of using Raw Transaction Webhooks in Helius?

[Assistant]
The benefit of using Raw Transaction Webhooks in Helius is that they offer lower latency compared to other webhook options. This is because Raw Transaction Webhooks do not involve parsing event types, allowing for faster delivery of transaction data. This can be particularly advantageous for applications that require real-time updates and need to process transaction information as quickly as possible.

In summary, the key benefit is the reduced latency in receiving transaction updates, making it suitable for scenarios where timely data is critical.

sses you monitor. It does not allow filtering by transaction type.

Discord Webhooks: Stream updates for specific transaction types directly to a designated Discord channel as formatted messages. To use this option, you must submit your Discord Webhook URL.

Raw Transaction Webhooks offer lower latency since they do not involve parsing event types.

Event Payload Example
Copy
[
  {
    "accountData": [
      {
        "account": "CKs1E69a2e9TmH4mKKLrXFF8kD3ZnwKjoEuXa6sz9WqX",
        "nativeBalanceChange": -72938049280,
        "tokenBalanceChanges": []
      },
      {
        "account": "NTYeYJ1wr4bpM5xo6zx5En44SvJFAd35zTxxNoERYqd",
        "nativeBalanceChange": 0,
        "tokenBalanceChanges": []
      },
      {
        "account": "AAaTGaA3uVqikfVEwoSG7EwkCb4bBDsMEyueiVUS5CaU",
        "nativeBalanceChange": 0,
        "tokenBalanceChanges": []
      },
      {
        "account": "autMW8SgBkVYeBgqYiTuJZnkvDZMVU2MHJh9Jh7CSQ2",
        "nativeBalanceChange": 0,
        "tokenBalanceChanges": []
      },
      {
        "account": "D8TxfGwdu9MiNMoJmUoC9wQfNfNT7Lnm6DzifQHRTy6B",
        "nativeBalanceChange": 0,
        "tokenBalanceChanges": []
      },
      {
        "account": "5DxD5ViWjvRZEkxQEaJHZw2sBsso6xoXx3wGFNKgXUzE",
        "nativeBalanceChange": 71860273440,
        "tokenBalanceChanges": []
      },
      {
        "account": "25DTUAd1roBFoUQaxJQByL6Qy2cKQCBp4bK9sgfy9UiM",
        "nativeBalanceChange": -2039280,
        "tokenBalanceChanges": [
          {


[User] What types of rewards can be specified in Alchemy, and how is the reward type identified?

[Assistant]
In Alchemy, the types of rewards that can be specified are identified by the `rewardType` field in the rewards array. The documentation indicates that the `rewardType` can include the following:

- **"rent"**: This is one type of reward that can be credited or debited to an account.

When rewards are requested, the rewards array will contain JSON objects that include the `rewardType` along with other relevant information such as the public key of the account that received the reward, the number of reward lamports, and the account balance after the reward was applied.

Here is an example of how a reward might be structured in the response:

```json
"rewards": [
    {
        "pubkey": "base58_encoded_public_key",
        "lamports": 1000,
        "postBalance": 5000,
        "rewardType": "rent"
    }
]
```

In this example, the reward type is specified as "rent", indicating the nature of the reward credited to the account.

Balances: <array|undefined> - List of token balances from after the transaction was processed or omitted if token balance recording was not yet enabled during this transaction
logMessages: <array|null> - array of string log messages or null if log message recording was not enabled during this transaction
rewards: <array of JSON objects> - present if rewards are requested:
pubkey: <base-58 encoded string> - The public key of the account that received the reward
lamports: <i64>- number of reward lamports credited or debited by the account
postBalance: <u64> - account balance in lamports after the reward was applied
rewardType: <string> - type of reward: "rent"
commission: <u8|undefined> - vote account commission when the reward was credited, only present for voting and staking rewards
loadedAddresses: <object|undefined> - Transaction addresses loaded from address lookup tables. Undefined if maxSupportedTransactionVersion is not set in request params.
writable: <array[base-58 encoded string]> - Ordered list of addresses for writable loaded accounts
readonly: <array[base-58 encoded string]> - Ordered list of addresses for read only loaded accounts
version: <"legacy"|number|undefined> - Transaction version. Undefined if maxSupportedTransactionVersion is not set in request params.
Tx Failed
<null> - if a transaction is not found or not confirmed
Request
cURL

curl --location --request POST 'https://solana-mainnet.g.alchemy.com/v2/demo/' \
--header 'Content-Type: application/json' \


[User] What is the deemed date of receipt for notices sent via email by Magic Eden?

[Assistant] The deemed date of receipt for notices sent via email by Magic Eden is the date on which such notice is transmitted.

atutory right, without such consent, will be null. Magic Eden may freely assign or transfer these Terms without restriction. Subject to the foregoing, these Terms will bind and inure to the benefit of the parties, their successors and permitted assigns.

10.4 Notices. Any notices or other communications provided by Magic Eden under these Terms will be given: (i) via email; or (ii) by posting to the site where you can access the Magic Eden APIs. For notices made by email, the date of receipt will be deemed the date on which such notice is transmitted.

10.5 Waiver of Rights. Magic Eden’s failure to enforce any right or provision of these Terms will not be considered a waiver of such right or provision. The waiver of any such right or provision will be effective only if in writing and signed by a duly authorized representative of Magic Eden. Except as expressly set forth in these Terms, the exercise by either party of any of its remedies under these Terms will be without prejudice to its other remedies under these Terms or otherwise.

👋
Welcome
Wallet Introduction
The Premier Multi-Chain Crypto Wallet

Introduction
The Magic Eden Wallet allows you to manage your assets across popular blockchains, including Solana, Bitcoin, Ethereum, Base and Polygon. Enjoy secure cross-chain swaps directly in the wallet that enable you to connect anywhere and collect everywhere

Download Here:
Browser Extension

IOS app

Android app

Resources
Website

X

Discord

Linktree

The majority of the


[User] What are the potential advantages of using OpenBook markets for liquidity on Raydium?

[Assistant]
The documentation does not explicitly outline the advantages of using OpenBook markets for liquidity on Raydium. However, it does mention that when creating a new permissionless pool on Raydium, users or projects are required to provide an OpenBook market ID instead of a Serum market ID.

This implies that OpenBook markets may offer certain benefits that align with Raydium's functionality, such as:

1. **Permissionless Creation**: OpenBook markets allow for the creation of new markets without the need for permission, which can enhance the accessibility and flexibility for users and projects looking to provide liquidity.

2. **Integration with Raydium**: By utilizing OpenBook markets, users can potentially leverage the features and capabilities of Raydium's AMM, which may lead to improved liquidity provision and trading experiences.

3. **Community-Driven Development**: OpenBook is likely to be developed and maintained by a community, which can lead to innovations and improvements that benefit users on Raydium.

For specific advantages or features, it would be beneficial to refer to the OpenBook documentation or community discussions for more detailed insights.

de against liquidity from Raydium's AMM.

When creating a new permissionless pool on Raydium, users or projects will first need to create and provide an OpenBook market ID (instead of a Serum market ID).

You can learn more about OpenBook below:

OpenBook Github

OpenBook - create market

OpenBook Twitter


[User] What factors does the DexScreener ranking algorithm consider in addition to Boosts when determining a token's rank?

[Assistant] The DexScreener ranking algorithm incorporates various on-chain and off-chain metrics in addition to Boosts when determining a token's rank. However, the specific metrics or factors that are considered beyond Boosts are not detailed in the provided documentation snippet. Therefore, it is not possible to provide a comprehensive list of these additional factors based solely on the available information.

screener and token pages. The Golden Ticker remains active as long as there are 500 or more active Boosts.

Boosts are valid only for the specified duration from the time of activation. There will be no extensions or compensation for any unused or expired Boosts.

Guarantees
Purchasing Boosts does not guarantee that a token will trend or achieve a specific rank on DEX Screener. The platform’s ranking algorithm incorporates various on-chain and off-chain metrics, and Boosts are merely one of many factors considered. The Company makes no representations or warranties as to the impact of Boosts on a token's ranking.

Display and Functionality Changes
DEX Screener reserves the right to change the way a token's Boost count and Golden Ticker are displayed at any time. The appearance of these features may vary across different platforms (e.g., web, mobile apps). We further reserve the right to modify the specific manner in which Boosts interact with a token's Trending Score at any time, without prior notice, including for Boosts that are currently active. Such changes may take effect immediately, even after the purchase of Boosts.

Boost Revocation
DEX Screener reserves the right, at its sole discretion, to revoke the ability for a token to be boosted and/or remove all of a token’s active Boosts at any time and for any reason. This is particularly applicable in cases where security concerns arise, such as a token being flagged as potentially malicious by our moderators or third-part


[User] What is the maximum number of items you can request in a single call to the Magic Eden API for AMM pools?

[Assistant] The maximum number of items you can request in a single call to the Magic Eden API for AMM pools is 500. This is specified in the `limit` query parameter, which can be set with a minimum value of 1 and a maximum value of 500.

easing order if field is specified), 1: DESC (descending), 2: INC (increasing)

Response

200
success response

Updated about 1 year ago

MMM Pool Pricing
Get AMM pools grouped by a reference price corresponding to a collection symbol, summing up the total buy side liquidity for each group.
Did this page help you?
Language

Shell

Node

Ruby

PHP

Python
URL

https://api-mainnet.magiceden.dev/v2
/mmm/pools
1
curl --request GET \
2
     --url https://api-mainnet.magiceden.dev/v2/mmm/pools \
3
     --header 'accept: application/json'

Try It!
RESPONSE
Click Try It! to start a request and see the response here! Or choose an example:
application/json

200

Get AMM pools grouped by a reference price corresponding to a collection symbol, summing up the total buy side liquidity for each group.
get
https://api-mainnet.magiceden.dev/v2/mmm/pools/buy-walls
Log in to see full request history
time	status	user agent
Make a request to see history.

Query Params
collectionSymbol
string
The collection symbol to query the pools from. At least this or "owner" must be passed in

offset
integer
The number of items to skip, default 0, min 0

limit
integer
The numbers of items to return, default 100, min 1, max 500

Response

200
success response

Updated 11 months ago

Get AMM pools corresponding to an owner or collection symbol. At least one of required collectionSymbol or owner is required!
Get best offers for an NFT
Did this page help you?
Language

Shell

Node

Ruby

PHP

Python
URL

https:


[User] What is the purpose of the 'blockUnsubscribe' RPC method in Solana?

[Assistant]
The `blockUnsubscribe` RPC method in Solana is used to unsubscribe from block notifications. This method allows a client to cancel a previously established subscription to receive updates about new blocks in the blockchain.

### Parameters
- **subscription** (integer, required): This is the subscription ID that you want to cancel.

### Result
- The method returns a boolean value indicating whether the unsubscribe operation was successful.

### Code Sample
Here is an example of how to use the `blockUnsubscribe` method:

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "blockUnsubscribe",
  "params": [0]
}
```

### Response
A successful response will look like this:

```json
{
  "jsonrpc": "2.0",
  "result": true,
  "id": 1
}
```

In this example, the subscription with ID `0` is being canceled, and the response indicates that the unsubscribe operation was successful.

          "blockTime": 1639926816,
          "blockHeight": 101210751
        },
        "err": null
      }
    },
    "subscription": 14
  }
}

blockUnsubscribe RPC Method
Edit Page
Unsubscribe from block notifications

Parameters #
integer required

subscription id to cancel

Result #
<bool> - unsubscribe success message

Code sample #
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "blockUnsubscribe",
  "params": [0]
}

Response #
{ "jsonrpc": "2.0", "result": true, "id": 1 }

logsSubscribe RPC Method
Edit Page
Subscribe to transaction logging

Parameters #
filter string | object required

filter criteria for the logs to receive results by account type. The following filters types are currently supported:

string

A string with one of the following values:

all - subscribe to all transactions except for simple vote transactions
allWithVotes - subscribe to all transactions, including simple vote transactions
object

An object with the following field:

mentions: [ <string> ] - array containing a single Pubkey (as base-58 encoded string); if present, subscribe to only transactions mentioning this address
The mentions field currently only supports one Pubkey string per method call. Listing additional addresses will result in an error.

object optional

Configuration object containing the following fields:

commitment string optional

Result #
<integer> - Subscription id (needed to unsubscribe)

Code sample #
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "logsSubscribe",
  "para


[User] What are the fields included in the response object from the getRecentPrioritizationFees method in Tatum?

[Assistant]
The response object from the `getRecentPrioritizationFees` method in Tatum includes the following fields:

1. **slot**: The slot in which the fee was observed.
2. **prioritizationFee**: The per-compute-unit fee paid by at least one successfully landed transaction, specified in increments of 0.000001 lamports.

The result is an array of objects, each containing these two fields.

unts as writable.

Return Object
The result is an array of objects with the following fields:

slot: The slot in which the fee was observed.
prioritizationFee: The per-compute-unit fee paid by at least one successfully landed transaction, specified in increments of 0.000001 lamports.
JSON-RPC Request Example
JSON

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "getRecentPrioritizationFees",
  "params": [["CxELquR1gPP8wHe33gZ4QxqGB3sZ9RSwsJ2KshVewkFY"]]
}
JSON-RPC Response Example
JSON

{
  "jsonrpc": "2.0",
  "result": [
    {
      "slot": 348125,
      "prioritizationFee": 0
    },
    {
      "slot": 348126,
      "prioritizationFee": 1000
    },
    {
      "slot": 348127,
      "prioritizationFee": 500
    },
    {
      "slot": 348128,
      "prioritizationFee": 0
    },
    {
      "slot": 348129,
      "prioritizationFee": 1234
    }
  ],
  "id": 1
}

getblockheight
Solana RPC

Archive Method
Only on the full archive nodes. Complex queries might take longer and incur additional cost

How to Use It
JavaScript

// yarn add @tatumio/tatum

import { TatumSDK, Solana, Network } from '@tatumio/tatum'

const tatum = (await TatumSDK.init) < Solana > { network: Network.SOLANA }

const res = await tatum.rpc.getBlockHeight()

await tatum.destroy() // Destroy Tatum SDK - needed for stopping background jobs
Overview
The getBlockHeight method returns the current block height of the node. Block height refers to the number of blocks preceding the current one in the blockchain.

This m


[User] How can QuickNode's simulateTransaction method help in estimating the compute units for a transaction?

[Assistant]
QuickNode's `simulateTransaction` method is a valuable tool for estimating the compute units that a transaction will consume on the Solana blockchain. By simulating a transaction before it is executed, developers can gain insights into the resource requirements of their transactions, allowing for better planning and optimization.

Here’s how you can use the `simulateTransaction` method to estimate compute units:

1. **Create a Transaction**: First, you need to construct the transaction that you want to simulate. This involves adding the necessary instructions to the transaction.

2. **Simulate the Transaction**: Use the `simulateTransaction` method to run the simulation. This method will return a simulation result that includes the number of compute units consumed.

3. **Set Compute Unit Limit**: To ensure that you get an accurate estimate, include a `setComputeUnitLimit` instruction in your simulated transaction. This helps in determining the compute units accurately.

Here is an example code snippet demonstrating how to use the `simulateTransaction` method:

```javascript
const testTransaction = new Transaction().add(testInstruction);
const simulation = await connection.simulateTransaction(testTransaction, {
    replaceRecentBlockhash: true,
    sigVerify: false,
});
const targetComputeUnitsAmount = simulation.value.unitsConsumed;
```

In this example:
- A transaction is created and an instruction (`testInstruction`) is added.
- The `simulateTransaction` method is called on the connection object, simulating the transaction.
- The result of the simulation includes the `unitsConsumed`, which indicates how many compute units the transaction would consume if executed.

By using this method, developers can optimize their transactions and ensure they stay within the limits of compute units, ultimately leading to more efficient program design on the Solana network.

, you can use the simulateTransaction method to simulate the transaction and determine the compute units it will consume. To make sure you calculate the correct compute, your simulated transaction must include a setComputeUnitLimit instruction. Use simulateTransaction to determine the compute units a transaction will consume:

const testTransaction = new Transaction().add(testInstruction);
const simulation = await connection.simulateTransaction(testTransaction, {
    replaceRecentBlockhash: true,
    sigVerify: false,
});
const targetComputeUnitsAmount = simulation.value.unitsConsumed;

Efficient Program Design
If you are writing Solana programs, you should be aware that your program code can contribute significantly to the compute units consumed by a transaction. To optimize your programs, you can use the following techniques:

Minimize unnecessary logging (if you must log a key, make sure to use .key().log() instead of just .key() because base58 encoding is expensive)
User smaller data types (e.g., use u8 instead of u64 if appropriate for your use case)
Utilize Zero Copy for large data structures (this will result in lower CU for serializing and deserializing the data)
Save bumps into PDAs. By saving your bumps you can reduce the compute required to find_program_address
Compute Units Resources
Guide: How to Optimize Solana Transactions - Priority Fees
Optimize Compute in Solana Programs
Introduction to Solana Compute Units and Transaction Fees
Transaction Assembly Best Pra


[User] What overall user experience can Jupiter users expect when interacting with the Solana blockchain?

[Assistant]
Jupiter users can expect a highly positive user experience when interacting with the Solana blockchain. The documentation highlights that Solana is recognized for having one of the best user experiences across any blockchain. This is attributed to several factors:

1. **Fast Transactions**: Solana is designed for high throughput, which means transactions are processed quickly, enhancing the overall user experience.

2. **Low Fees**: The cost of transactions on Solana is very low, making it economical for users to interact with the blockchain. This is particularly beneficial when creating new wallets or funding them, as users can do so without significant financial burden.

3. **User-Friendly Interfaces**: The platforms and tools built on Solana, including Jupiter, are designed to be intuitive and easy to navigate, which helps users engage with the blockchain without unnecessary complexity.

4. **Safety Features**: Jupiter emphasizes the importance of transaction simulation, allowing users to review balance changes before signing any transactions. This feature acts as a safeguard against potential scams or mistakes, further enhancing user confidence.

Overall, by following best practices and utilizing the features provided by Jupiter and Solana, users can have a secure and enjoyable experience while engaging with the blockchain.

ith any site.

Social engineering attacks
This can happen in Discord, Telegram, Twitter, basically anywhere with communication taking place. How it works is that scammers will try to post a fake link. If you are careful and check the URL in the browser bar before doing anything on a site, you will be safe.

Note, even if you accidentally connect your wallet, As long as you did not sign any transactions, you are still safe. See the part on transaction simulation as a safeguard.

For the regular Web3 user
A few simple steps you can take
Never rush. Whenever you rush, it is more likely that you will make mistakes.
Avoid signing a transaction that does not clearly simulate in the wallet. Read all balance changes shown in the simulation carefully before signing any transaction.
If you really really have to sign something on an untrusted site or sign a transaction that does not simulate, always use a separate wallet with very limited funds to minimize any possibility of a malicious transaction draining all of your funds. Creating a new wallet is very easy on most wallet apps and it is very cheap to fund new wallets on Solana due to low fees. Don’t be cheap or lazy.
And with that, I wish you all the best on your journey on Solana. It no doubt has one of the best user experience across any blockchain and by following these tips I have shared here, I am confident that you will have a great time here.

Verifying Swaps on a Block Explorer
This is a community contributed guide
This is a


[User] What happens to remaining tokens and rent at the end of VA orders in Jupiter?

[Assistant]
At the end of your VA (Virtual Account) orders in Jupiter, any remaining tokens and rent will be automatically transferred to your wallet account. This process is handled by the Jupiter program without requiring any additional actions from you.

By default, if your wallet’s associated token account (ATA) remains open, the purchased tokens are automatically transferred to you on every order. The program ensures that tokens can only be sent to your wallet and not to any other accounts.

However, if you close your wallet’s token account for your purchased token partway through the VA cycle, and there are still tokens that have not been transferred, the VA program will close the Program Derived Address (PDA) in-token account. It will then utilize the rent recovered to open your wallet's token account again. This allows the program to transfer any remaining purchased tokens to you.

It's important to note that you would only receive 2/3 of the rent incurred to initialize your VA account in this scenario. The remaining 1/3 of the rent is recoverable by you if you decide to close your ATA that holds your purchased tokens.

**Warning:** Do not close your ATA without first withdrawing the tokens or swapping them for other tokens, as doing so can result in the loss of tokens. This is a general caution that applies beyond just Jupiter and is related to how Solana wallets function.

r SOL: Jupiter takes care to open/close your wrapped account.

Alternatively, if you would like to manually claim/withdraw the purchased tokens, you can toggle to the Manual option before confirming the VA order.

Auto Close
Auto Close
At the end of your VA orders, you do not need to perform any additional actions. Any remaining tokens and rent will be transferred to your wallet account directly.

By default, if your wallet’s ATA remains open, your purchase tokens are automatically transferred to you on every order (the program only allows your tokens to be sent to your wallet and no one else’s).

However, if there are still tokens yet to be transferred to you (ie. if you close your wallet’s token account for your purchase token halfway through the VA cycle as described in auto-withdrawal section), the VA program will close the PDA in-token account and utilize the rent recovered to open your wallet's token account.

This allows the program to transfer the remaining purchased tokens to you. As such, you would only receive 2/3 of the rent incurred to initialise your VA account. Having said that, this 1/3 rent is not absorbed by any third-party. This rent will remain recoverable by you if you decide to close your ATA that “holds” your purchased token.

danger
Do not close your ATA without first withdrawing the tokens or swapping them for other tokens. Doing so can result in the loss of tokens. This is not unique to Jupiter or Jupiter’s VA. This has to do with how Solana wallets


[User] How do I include the transaction signatures when sending a bundle in Pump Portal?

[Assistant]
To include transaction signatures when sending a bundle in Pump Portal, you need to collect the signatures from your transactions and then encode them into a format suitable for the API request. Here’s how you can do it:

1. **Collect the Signatures**: After signing your transactions, you will have a list of signatures that you need to include in your bundle.

2. **Encode the Signed Transactions**: You will need to encode the signed transactions into a format that the API can accept.

3. **Send the Bundle**: Use the `requests` library to send a POST request to the Jito API endpoint, including the encoded signed transactions.

Here’s a Python example that demonstrates these steps:

```python
import requests

# Assuming `signedTx` is your signed transaction object
encodedSignedTransactions = append(str(signedTx.signatures[0]))

# Prepare the request to send the bundle
jito_response = requests.post(
    "https://mainnet.block-engine.jito.wtf/api/v1/bundles",
    headers={"Content-Type": "application/json"},
    json={
        "jsonrpc": "2.0",
        "id": 1,
        "method": "sendBundle",
        "params": [
            encodedSignedTransactions
        ]
    }
)

# Print the transaction URLs for reference
for i, signature in enumerate(txSignatures):
    print(f'Transaction {i}: https://solscan.io/tx/{signature}')
```

In this example:
- `signedTx.signatures[0]` retrieves the first signature from your signed transaction.
- The `encodedSignedTransactions` variable is prepared to hold the encoded signature.
- A POST request is sent to the Jito API with the necessary headers and the encoded signed transactions in the JSON body.

Make sure to replace `txSignatures` with your actual list of transaction signatures to print their URLs correctly.

append(str(signedTx.signatures[0]))

    jito_response = requests.post(
        "https://mainnet.block-engine.jito.wtf/api/v1/bundles",
        headers={"Content-Type": "application/json"},
        json={
            "jsonrpc": "2.0",
            "id": 1,
            "method": "sendBundle",
            "params": [
                encodedSignedTransactions
            ]
        }
    )

    for i, signature in enumerate(txSignatures):
        print(f'Transaction {i}: https://solscan.io/tx/{signature}')

Create a New Wallet and API Key
You can programmatically create new Lightning wallets and linked api keys by sending a GET request to:

https://pumpportal.fun/api/create-wallet

Examples
Python
JavaScript
CURL
import requests

response = requests.get(url="https://pumpportal.fun/api/create-wallet")

# JSON with keys for a newly generated wallet and the linked API key
data = response.json()

const response = await fetch("https://pumpportal.fun/api/create-wallet", {
  method: "GET",
});

// JSON Object with keys for a newly generated wallet and the linked API key
const data = await response.json();

curl -L \
-X GET \
'https://pumpportal.fun/api/create-wallet'

Pump.fun Token Creation
You can create tokens via the pump.fun API.

There is no additional fee for token creation. The standard trading fee is applied to the initial dev buy.

Examples below:

Lightning Transaction Examples:
Python
JavaScript
import requests
import json
from solders.keypair import Keypair

def send_crea


[User] What is the relationship between the total tokens in the pool and the borrow fees in Jupiter's system?

[Assistant]
In Jupiter's system, the relationship between the total tokens in the pool and the borrow fees is established through the calculation of the hourly borrow fee, which is influenced by the total tokens in the pool.

The total tokens in the pool are defined as the sum of the existing custody of tokens and the user collateral. The formula for calculating the hourly borrow fee incorporates both the total tokens locked (which includes the position size and utilized tokens in the pool) and the total tokens in the pool.

Here's a breakdown of the relationship:

1. **Total Tokens in Pool**: This is calculated as:
   \[
   \text{Total Tokens in Pool} = \text{Existing Custody} + \text{User Collateral}
   \]

2. **Total Tokens Locked**: This includes the position size and the utilized tokens in the pool:
   \[
   \text{Total Tokens Locked} = \text{Position Size} + \text{Utilized Tokens in Pool}
   \]

3. **Hourly Borrow Fee Calculation**: The hourly borrow fee is calculated using the formula:
   \[
   \text{Hourly Borrow Fee} = \left( \frac{\text{Total Tokens Locked}}{\text{Total Tokens in Pool}} \right) \times \text{Hourly Borrow Rate} \times 10000
   \]

This means that as the total tokens in the pool change (either through user deposits or withdrawals), the denominator in the borrow fee calculation will also change, affecting the overall borrow fee that a user incurs. If the total tokens in the pool increase, the borrow fee may decrease, and vice versa, assuming the total tokens locked remains constant.

In summary, the total tokens in the pool directly influence the calculation of borrow fees, and users need to be aware of this relationship to effectively manage their positions and associated costs.

mple
For example, assume the price of SOL is $100. The SOL liquidity pool has 1,000 SOL under custody and has lent out 100 SOL (i.e, utilization is 10%). A trader opens a 100 SOL position with an initial margin of 10 SOL. The remaining 90 SOL is borrowed from the pool to open the leveraged position. Assume that the hourly borrow rate for SOL is 0.012%:

Position Size in SOL: 100 SOL
Total Tokens Locked: ` 100 SOL (position size) + 100 SOL (utilized SOL in pool) = 200 SOL
Total Tokens in Pool: 1,000 SOL (existing custody) + 10 SOL (user collateral) = 1,010 SOL
Utilization: 200 SOL / 1,010 SOL = 19.8%
Hourly Borrow Rate: 0.012% (0.00012 in decimal format / 1.2 BPS)
Calculation:

Hourly Borrow Fee = (200 / 1010) * 0.00012 * 10000 = 0.238

This means your position will accrue a borrow fee of $0.238 every hour it remains open.

info
Borrow fees are continuously accrued and deducted from your collateral. This ongoing deduction has two important consequences:

Your effective leverage increases over time as your collateral decreases.
Your liquidation price moves closer to the current market price.
It's crucial to regularly monitor your borrow fees and liquidation price. Failure to do so may result in unexpected liquidation, especially during periods of high market volatility or extended position duration.

How does the Jupiter Perpetuals contract calculate borrow fees?
Due to Solana's blockchain architecture, calculating funding fees in real-time for each position would be computatio


[User] What is the significance of impermanent loss (IL) in Meteora's liquidity pools?

[Assistant]
Impermanent loss (IL) is a crucial concept for liquidity providers (LPs) in Meteora's liquidity pools, particularly those that operate on a traditional constant product model. The significance of IL lies in the following points:

1. **Risk Management**: LPs face the risk of impermanent loss when they provide liquidity to a pool. This occurs when the relative price of the tokens in the pool changes. If the price of one token increases significantly compared to the other, the LP may end up with a less valuable combination of tokens than if they had simply held the tokens outside of the pool.

2. **Value Comparison**: The value of the LP’s initial token deposit can become less compared to holding the tokens separately. This means that LPs must be aware of the potential for IL when deciding to provide liquidity, as it can affect their overall returns.

3. **Informed Decision Making**: Understanding IL helps LPs make informed decisions about whether to participate in a liquidity pool. They need to weigh the potential rewards from trading fees against the risk of impermanent loss.

4. **Management Strategies**: LPs must learn to manage impermanent loss effectively. This may involve strategies such as choosing pools with lower volatility or employing hedging techniques to mitigate the risks associated with price divergence.

In summary, impermanent loss is significant in Meteora's liquidity pools as it represents a key risk that LPs must understand and manage to optimize their investment outcomes.

oadcasts/1RDGllnNWNEGL

Day 2: https://twitter.com/MeteoraAG/status/1779177132478128131

Day 3: https://twitter.com/MeteoraAG/status/1779541597568586119

Boot Camp #2
Day 1: https://x.com/MeteoraAG/status/1781714717276586143

Day 2: https://x.com/MeteoraAG/status/1782075825443254567

Boot Camp #3
Day 1: https://x.com/MeteoraAG/status/1786786461813268637

Day 2: https://x.com/MeteoraAG/status/1787150160268833274

Boot Camp #4
Day 1: https://x.com/MeteoraAG/status/1796922782691074112

Day 2: https://x.com/MeteoraAG/status/1797280928164876750

Boot Camp #5
Day 1: https://x.com/MeteoraAG/status/1814663188883120188

Day 2: https://x.com/MeteoraAG/status/1815024510116258208

Boot Camp #6
Day 1: https://x.com/i/broadcasts/1djGXrmmNEdxZ

Day 2: https://x.com/i/broadcasts/1OwxWNmqDzmJQ

Boot Camp #7
Day 1: https://x.com/MeteoraAG/status/1837447097760862711

Day 2: https://x.com/MeteoraAG/status/1837809490311500294

isk of Impermanent Loss (IL)
Impermanent loss, also called divergence loss, is the most common liquidity provider risk associated with traditional (constant product) liquidity pools. It occurs when the relative price of the tokens in the pool changes and the value of the LP’s initial token deposit in the pool becomes less compared to holding the tokens separately without depositing them in a pool. LPs must learn to manage IL.

Consider a scenario where you LP into an A/B pool and the value of token A increases against token B; you will end up with more of token B and l


[User] In what manner does DexScreener inform users about the effectiveness of changes to the Privacy Policy?

[Assistant] DexScreener informs users about the effectiveness of changes to the Privacy Policy by posting the new Privacy Policy on their website. They also notify users via email and/or a prominent notice on the Service prior to the change becoming effective. Additionally, they update the "Last updated" date at the top of the Privacy Policy to reflect when the changes were made. Users are advised to review the Privacy Policy periodically for any changes.

s
Our Service may contain links to other websites that are not operated by Us. If You click on a third party link, You will be directed to that third party's site. We strongly advise You to review the Privacy Policy of every site You visit.

We have no control over and assume no responsibility for the content, privacy policies or practices of any third party sites or services.

Changes to this Privacy Policy
We may update Our Privacy Policy from time to time. We will notify You of any changes by posting the new Privacy Policy on this page.

We will let You know via email and/or a prominent notice on Our Service, prior to the change becoming effective and update the "Last updated" date at the top of this Privacy Policy.

You are advised to review this Privacy Policy periodically for any changes. Changes to this Privacy Policy are effective when they are posted on this page.

Contact Us
If you have any questions about this Privacy Policy, You can contact us:

By visiting this page on our website: https://docs.dexscreener.com

App privacy policy
Privacy Policy
Last updated: November 16, 2022

This Privacy Policy describes Our policies and procedures on the collection, use and disclosure of Your information when You use the Service and tells You about Your privacy rights and how the law protects You.

We use Your Personal data to provide and improve the Service. By using the Service, You agree to the collection and use of information in accordance with this Privacy Policy. This


[User] How does the Dynamic AMM program in Meteora allow for different addresses to manage liquidity and fees?

[Assistant]
The Dynamic AMM program in Meteora allows for flexibility in managing liquidity and fees by enabling one address to add liquidity to a pool while allowing a different address to claim the fees generated from that liquidity. This is particularly useful for developers or projects that want to separate the responsibilities of liquidity provision and fee claiming.

Here’s how it works:

1. **Adding Liquidity**: A developer can add liquidity to a dynamic pool using their address. This involves providing the required token pair and ensuring that the liquidity meets the minimum threshold for it to be active on platforms like Jupiter.

2. **Transferring LP Tokens**: After adding liquidity, the developer can then send the Meteora LP tokens (which represent their share of the liquidity pool) to a different address. This can be done to designate another wallet (such as a project wallet or a community wallet) to manage the fees.

3. **Claiming Fees**: The address that receives the Meteora LP tokens can then claim the trading fees generated from the permanently locked liquidity. This allows for a clear separation between the liquidity provider and the fee claimant, which can be beneficial for project governance and transparency.

Here’s a simplified code example to illustrate the process:

```solidity
// Pseudocode for adding liquidity and transferring LP tokens

// Address of the liquidity provider
address liquidityProvider = msg.sender;

// Add liquidity to the pool
addLiquidity(tokenA, tokenB, amountA, amountB);

// Get the LP token balance
uint256 lpTokenBalance = getLPTokens(liquidityProvider);

// Transfer LP tokens to the fee claiming address
address feeClaimingAddress = 0x123...; // Address designated to claim fees
transferLPTokens(liquidityProvider, feeClaimingAddress, lpTokenBalance);
```

This structure allows for greater flexibility in managing liquidity and ensures that projects can maintain control over their fee structures while still providing liquidity to the market.

s important that this is the market price or you will get arbitraged away. So if you create a SOL/USDC pool, you would need to add 75 USDC for every 1 SOL you add to the pool. If this is way off you can lose money as arbitragers take advantage of your low price.

You need a minimum of $600 in liquidity (combined value of token pair) for your pool to be picked up by Jupiter. This may take 30mins for the crawler to update. If at any time the liquidity goes below $600 then it will auto-delist from Jupiter, but once it goes above, it will auto-relist. Please visit here for the latest steps to get the token and pool listed on Jupiter.

It may take a few minutes for your pool to appear on the Meteora pools list, but if the transaction is successful then it will be created on-chain.

Claiming Fees from Permanently Locked Liquidity
If you are a memecoin or token project that wants to assure traders and your community, you can permanently lock your liquidity  (your lose this liquidity forever) in your dynamic pool.

Simply navigate to the "Burn" tab and lock your Meteora LP token in the pool.

After you permanently lock liquidity in the dynamic pool, you can even claim compounding trading fees from your locked liquidity, forever!

Adding liquidity with one address but allowing a different address to claim fees on the permanently locked liquidity
For developers, our Dynamic AMM program allows one address to add liquidity first then send their own Meteora LP token to a different lock


[User] How can users test the getMaxRetransmitSlot RPC method using curl in ChainStack?

[Assistant]
To test the `getMaxRetransmitSlot` RPC method using `curl` in ChainStack, you can follow the example provided below. This example demonstrates how to make a POST request to the appropriate endpoint with the required parameters.

Here’s the `curl` command you can use:

```bash
curl --request POST \
     --url https://nd-326-444-187.p2pify.com/9de47db917d4f69168e3fed02217d15b/ \
     --header 'accept: application/json' \
     --header 'content-type: application/json' \
     --data '
{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "getMaxRetransmitSlot"
}
'
```

### Breakdown of the command:
- **--request POST**: Specifies that this is a POST request.
- **--url**: The endpoint URL where the request is sent. Replace the URL with your specific node endpoint.
- **--header 'accept: application/json'**: Indicates that the client expects a JSON response.
- **--header 'content-type: application/json'**: Specifies that the request body is in JSON format.
- **--data**: Contains the JSON payload with the necessary parameters:
  - `"id": 1`: An identifier for the request.
  - `"jsonrpc": "2.0"`: Specifies the JSON-RPC version.
  - `"method": "getMaxRetransmitSlot"`: The method being called.

By executing this command in your terminal, you will receive a response containing the maximum retransmit slot details from the ChainStack node.

 and retransmitted shreds for.
Use case
A practical use case for getMaxRetransmitSlot is to track the node's progress in processing the ledger. This can be useful for network monitoring tools or other applications that need to display or make use of this information.

Try the getMaxRetransmitSlot RPC method yourself
Body Params
id
integer
Defaults to 1
1
jsonrpc
string
Defaults to 2.0
2.0
method
string
Defaults to getMaxRetransmitSlot
getMaxRetransmitSlot
params
array
Response

200
Max retransmit slot details

Updated 11 months ago

getLeaderSchedule | Solana
getMaxShredInsertSlot | Solana
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2
     --url https://nd-326-444-187.p2pify.com/9de47db917d4f69168e3fed02217d15b/ \
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getMaxShredInsertSlot | Solana
post
https://nd-326-444-187.p2pify.com/9de47db917d4f69168e3fed02217d15b/
Solana getMaxShredInsertSlot method
The Solana getMaxShredInsertSlot method returns the highest slot that shreds have been received for and inserted into blockstore.

This method provides the highest slot that the node has received shreds for, which is useful for understanding the node's progress in processing the ledger.

👍
Get you own node endpoint today

Start for free and get your app to production levels immediately. No


[User] What should a developer expect to learn about data storage in Solana during the Quick Start Guide?

[Assistant]
In the Quick Start Guide for Solana, a developer can expect to learn about the following key concepts regarding data storage:

1. **Understanding Accounts**: The guide will explore how data is stored in Solana through the use of accounts. Accounts are fundamental data structures in Solana that hold both data and SOL (the native currency).

2. **Account Structure**: Developers will learn about the structure of accounts, including how they can store various types of data and how to manage these accounts effectively.

3. **Interacting with Accounts**: The tutorial will cover how to create, read, and update accounts, which is essential for building applications on the Solana blockchain.

By the end of the section on data storage, developers should have a foundational understanding of how to utilize accounts for storing and managing data in their Solana applications.

evelop and deploy programs onchain. Users can interact with these programs permissionlessly, removing the need for middleman servers to build applications.
400ms Slot Times	Every transaction sent by users on Solana is confirmed in a block. With a target slot time of 400ms for each block, interactions by users do not have to wait, providing the best in class user experience of any blockchain.
Low Fees	Fees on Solana are well known to be low. With a median fee of 0.00064 SOL per transaction, Solana enables building for users across the world regardless of background.
High Throughput	Scaling to thousands of transactions per second, Solana is built to scale with your application's user needs.
How to Use These Docs #
On the left, you will find the docs sidebar. This lists the documentation in order from basic to more advanced information. If you are new to Solana, we recommend starting from the top and working your way down. However, you're welcome to read them in any order that you like.

Once you're ready to start building, check out the Quick Start guide.

Solana Quick Start Guide
Welcome to the Solana Quick Start Guide! This hands-on guide will introduce you to the core concepts for building on Solana, regardless of your prior experience. By the end of this tutorial, you'll have a basic foundation in Solana development and be ready to explore more advanced topics.

What You'll Learn #
In this tutorial, you'll learn about:

Understanding Accounts: Explore how data is stored o


[User] What role do slippage settings play in the transaction process within Jupiter?

[Assistant]
Slippage settings play a crucial role in the transaction process within Jupiter by ensuring that users are protected against unfavorable price changes during a transaction. Specifically, slippage settings allow users to define the acceptable range of price movement for their transactions.

Here’s how slippage settings function in the context of Jupiter:

1. **Minimum Out-Token Guarantee**: When a transaction is initiated, the user can set slippage parameters that define the minimum expected amount of out-token (the token they wish to receive). If the actual out-token amount received is less than this minimum due to price fluctuations, the transaction will fail.

2. **Protection Against Price Changes**: By incorporating slippage settings, users can mitigate the risk of receiving a significantly lower amount of tokens than anticipated, which is particularly important in volatile markets.

3. **Transaction Reversion**: If the transaction results in an out-token amount that does not meet the user-defined slippage threshold, the transaction can be reverted. This ensures that users do not incur losses from unexpected price movements.

In summary, slippage settings are essential for providing users with a safety net against price volatility, ensuring that they receive at least the minimum expected amount of tokens in their transactions.

ithout first withdrawing the tokens or swapping them for other tokens. Doing so can result in the loss of tokens. This is not unique to Jupiter or Jupiter’s VA. This has to do with how Solana wallets and accounts work.

MEV frontrun mitigation
Orders are not placed exactly when it is due.
Orders have a +2 ~ 30 seconds variability, which introduces uncertainty and exposure risk to exploiters and eliminates any sort of risk-free return, rendering front-running a highly risky endeavour.
Before a transaction is sent to a node, prices are checked and an estimated out-token (desired token) amount is pre-calculated.
In addition to slippage settings, these parameters are included in the transaction and should the out-token amount be less than the expected minimum out-token amount, the transaction would fail.
While this does not prevent MEV front-running, similar to a regular AMM swap, users are guaranteed to receive a minimum amount of out-token
Transactions can be reverted if an inadequate amount of out-token is received. This ensures prices will not slip to a level where it is sufficiently profitable or at-all profitable for potential front-running bots.
The very nature of VA is to split an order into multiple orders over a period of time, this naturally reduces price impact from front-running activities.

VA Explainer and Use Cases
What is Value Averaging (VA)?
Forecasting whether prices have reached their peak or bottomed out in the short term is one of the most challenging aspec


[User] What does the application_idx parameter represent when opening a DCA account in Jupiter?

[Assistant]
The `application_idx` parameter represents a Unix timestamp in seconds. It is used to identify the specific application or instance of the DCA (Dollar Cost Averaging) account you are opening. This timestamp helps in managing and organizing different DCA accounts that may be created for various applications or purposes.

When calling the `open_dca_v2` function, you would provide this parameter as follows:

```rust
let application_idx: u64 = 1633046400; // Example Unix timestamp
```

This timestamp should be provided in the correct format to ensure proper functionality of the DCA account.

Derived Address (PDA) account. In order to start dollar cost averaging, you will need to construct and send a Transaction containing an Instruction to open this DCA account. (if you are not familiar with constructing a transaction on Solana, take a look at using DCA SDK. This guide provides more thorough code examples).

Each DCA account has unique parameters. If you want to have different parameters, you can create any number of DCA accounts.

Instruction

pub fn open_dca_v2(
    ctx: Context<OpenDcaOnBehalf>,
    application_idx: u64,
    in_amount: u64,
    in_amount_per_cycle: u64,
    cycle_frequency: i64,
    min_out_amount: Option<u64>,
    max_out_amount: Option<u64>,
    start_at: Option<i64>,
) -> Result<()> {

Arguments needed (in this order):

Arguments	Type	Description
applicationIdx	u64	A unix timestamp in seconds
inAmount	u64	Total input mint amount to sell.
For e.g. if you are trying to buy SOL using 100 USDC every day over 10 days, inAmount should be `100 10 (10^6)` - USDC has 6 decimals
inAmountPerCycle	u64	Input mint amount to sell each time.
For e.g. if you are trying to buy SOL using 100 USDC every day over 10 days, inAmountPerCycle should be `100 (10^6)`*
cycleFrequency	i64	The number of seconds between each periodic buys. For e.g. if you are trying to DCA on a daily basis, cycleFrequency should be 60 60 24 = 86,400
minOutAmount	Option<u64>	This is an optional field. Following the examples above, let's say you only want to buy SOL if SOL is below SOL-USD


[User] What does the 'nonceAdvance' method do in the context of Solana's nonce accounts?

[Assistant]
In the context of Solana's nonce accounts, the `nonceAdvance` method is used to advance the nonce account, which is a special type of account that allows for the creation of transactions that can be executed at a later time.

When you call the `nonceAdvance` method, it updates the nonce account to a new nonce value, effectively allowing the account custodian (the authorized public key) to create new transactions that can be signed later. This is particularly useful for ensuring that transactions can be executed reliably, even if the original transaction is delayed or if the account needs to be used for multiple transactions.

Here is an example of how to use the `nonceAdvance` method in a transaction:

```javascript
// Advance nonce - Used to create transactions as an account custodian
let advanceNonceTransaction = new web3.Transaction().add(
  web3.SystemProgram.nonceAdvance({
    noncePubkey: nonceAccount.publicKey,
    authorizedPubkey: payer.publicKey,
  }),
);

await web3.sendAndConfirmTransaction(connection, advanceNonceTransaction, [
  payer,
]);
```

In this example:
- `noncePubkey` is the public key of the nonce account you want to advance.
- `authorizedPubkey` is the public key of the account that is authorized to advance the nonce.

By advancing the nonce, you ensure that the nonce account can be used for subsequent transactions, maintaining the integrity and reliability of the transaction process on the Solana network.

: allocatedAccount.publicKey,
  space: 100,
});
let transaction = new web3.Transaction().add(allocateInstruction);

await web3.sendAndConfirmTransaction(connection, transaction, [
  payer,
  allocatedAccount,
]);

// Create Nonce Account
let nonceAccount = web3.Keypair.generate();
let minimumAmountForNonceAccount =
  await connection.getMinimumBalanceForRentExemption(web3.NONCE_ACCOUNT_LENGTH);
let createNonceAccountTransaction = new web3.Transaction().add(
  web3.SystemProgram.createNonceAccount({
    fromPubkey: payer.publicKey,
    noncePubkey: nonceAccount.publicKey,
    authorizedPubkey: payer.publicKey,
    lamports: minimumAmountForNonceAccount,
  }),
);

await web3.sendAndConfirmTransaction(
  connection,
  createNonceAccountTransaction,
  [payer, nonceAccount],
);

// Advance nonce - Used to create transactions as an account custodian
let advanceNonceTransaction = new web3.Transaction().add(
  web3.SystemProgram.nonceAdvance({
    noncePubkey: nonceAccount.publicKey,
    authorizedPubkey: payer.publicKey,
  }),
);

await web3.sendAndConfirmTransaction(connection, advanceNonceTransaction, [
  payer,
]);

// Transfer lamports between accounts
let toAccount = web3.Keypair.generate();

let transferTransaction = new web3.Transaction().add(
  web3.SystemProgram.transfer({
    fromPubkey: payer.publicKey,
    toPubkey: toAccount.publicKey,
    lamports: 1000,
  }),
);
await web3.sendAndConfirmTransaction(connection, transferTransaction, [payer]);

// Assign a new ac