@lifi/sdk/src/_esm/core/Solana/connection.js

LI.FI Any-to-Any Cross-Chain-Swap SDK

import { ChainId } from '@lifi/types';
import { Connection } from '@solana/web3.js';
import { getRpcUrls } from '../rpc.js';
const connections = new Map();
/**
 * Initializes the Solana connections if they haven't been initialized yet.
 * @returns - Promise that resolves when connections are initialized.
 */
export const ensureConnections = async () => {
    const rpcUrls = await getRpcUrls(ChainId.SOL);
    for (const rpcUrl of rpcUrls) {
        if (!connections.get(rpcUrl)) {
            const connection = new Connection(rpcUrl);
            connections.set(rpcUrl, connection);
        }
    }
};
/**
 * Wrapper around getting the connection (RPC provider) for Solana
 * @returns - Solana RPC connections
 */
export const getSolanaConnections = async () => {
    await ensureConnections();
    return Array.from(connections.values());
};
/**
 * Calls a function on the Connection instances with retry logic.
 * @param fn - The function to call, which receives a Connection instance.
 * @returns - The result of the function call.
 */
export async function callSolanaWithRetry(fn) {
    // Ensure connections are initialized
    await ensureConnections();
    let lastError = null;
    for (const connection of connections.values()) {
        try {
            const result = await fn(connection);
            return result;
        }
        catch (error) {
            lastError = error;
        }
    }
    // Throw the last encountered error
    throw lastError;
}
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