Solana: Liquidity.fetchAllPoolKeys returning TypeError: Cannot read properties of undefined (reading ‘toBase58’)

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I can help you troubleshoot and resolve the issue. Here is an article that addresses the error you are experiencing:

Error: Cannot read properties of undefined (reading “toBase58”) in Solana liquidity.fetchAllPoolKeys()

Explanation of the issue

The fetchAllPoolKeys method returns a promise that resolves to an array of Liquidity objects, which are essentially Solana pools. However, when you try to access the toBase58 property on one of these values, a TypeError is thrown.

This error typically occurs when you try to convert a value to Base58 (a standardized way of representing addresses and other Solana data) using the toBase58 method. The problem lies in your code, which is trying to access this method on an undefined value.

Step-by-step solution

To resolve this error, let’s go through the steps:

• Understand the fetchAllPoolKeys method

  : The fetchAllPoolKeys method fetches all the pool keys (addresses) from a given liquidity provider.

• Accessing the pool keys: To access these pool keys, you will need to call the pool property for each value returned by fetchAllPoolKeys.

• Convert to Base58: You can convert the values ​​to Base58 using a library like [solana-sdk]( or manually with tools.

• Verify the existence of group keys: Before attempting any conversion, make sure that the group keys you are trying to access actually exist on the liquidity provider.

Code Refactoring

Here is an updated version of the code snippet with refactored error handling:

const { Liquidity } = require('@raydium-io/raydium-sdk');
async function main() {
const connection = this.connection; // Replace "this" with your actual connection object
try {
const pools = await Liquidity.fetchAllPoolKeys(connection, { '4': / liquidity provider ID / });
for (const pool of pools) {
if (!pool.poolKey || !pool.toBase58) continue;
console.log(pool.toBase58); // Log Base58 values
console.log(pool.poolId); // Log pool IDs
const toBase58 = await pool.toBase58();
console.log(toBase58);
}
} catch (error) {
console.error('Error fetching pools:', error);
}
}
main();

Additional Tips

– Make sure you have the @raydium-io/raydium-sdk library installed and imported into your Solana project.

– Always check if a value has properties before attempting to access them. You can use optional chaining (?.) or the null coalescing operator (??) to safely handle undefined values.

By following these steps, you should be able to resolve the fetchAllPoolKeys method error and successfully fetch all liquidity pools on Raydium using the Solana SDK.

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