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

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

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

Problem Explanation

The FetchAllPoolKeys method returns a Promise that resolves to a set of Liquidity objects, which are essentially Solana pools. However, when you try to use the toBase58 property on one of these values, it throws a TypeError.

This error usually occurs when you try to convert a value to Base58 (the standardized way to represent addresses and other Solana data) using the toBase58 method. The problem is in your code that tries to use this method on an undefined value.

Step-by-step solution

To resolve this error, follow these steps:

• Understand the “fetchAllPoolKeys” method: The “fetchAllPoolKeys” method retrieves all pool keys (addresses) from a given liquidity provider.

• Using pool keys

  

  : To use these pool keys, you need to call the pool property on each value returned by the fetchAllPoolKeys function.

• ToBase58 conversion: You can convert values ​​to Base58 using a library such as [solana-sdk]( or manually using tools.

• Ensure pool keys exist

  : Before attempting any conversions, make sure that the pool keys you are trying to use actually exist on the liquidity provider.

Code Refactoring

Here is an updated version of your code snippet with reformatted 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 pool) {
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 use them. You can use optional concatenation (?.) or the null concatenation operator (??) to safely specify undefined values.

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