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SDKs

SDKs build on the same HTTP and WebSocket methods documented by Solana (Solana HTTP RPC docs, Solana WebSocket RPC docs).

TypeScript: @solana/web3.js​

import { Connection, PublicKey } from '@solana/web3.js';
const connection = new Connection(process.env.SOLANA_RPC_URL ?? 'http://127.0.0.1:8899', 'confirmed');
const account = await connection.getAccountInfo(new PublicKey(process.env.SOLANA_ACCOUNT!));
console.log(account?.owner.toBase58());

Rust client​

use solana_client::rpc_client::RpcClient;
use solana_sdk::commitment_config::CommitmentConfig;
let client = RpcClient::new_with_commitment("http://127.0.0.1:8899".to_string(), CommitmentConfig::confirmed());
let slot = client.get_slot()?;
println!("slot={}", slot);
tip

Configure explicit URLs, commitments, timeouts, and retry budgets; SDKs do not replace private RPC capacity.