Connecting to a Solana Environment

When you are working on Solana development, you will need to connect to a specific RPC API endpoint. Solana has 3 public development environments:

mainnet-beta https://api.mainnet-beta.solana.com
devnet https://api.devnet.solana.com
testnet https://api.testnet.solana.com

connect-to-environment.ts

import { clusterApiUrl, Connection } from "@solana/web3.js";
 
(async () => {
  const connection = new Connection(clusterApiUrl("mainnet-beta"), "confirmed");
})();

Finally, you can also connect to a private cluster, either one local or running remotely with the following:

import { Connection } from "@solana/web3.js";
 
(async () => {
  // This will connect you to your local validator
  const connection = new Connection("http://127.0.0.1:8899", "confirmed");
})();

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Solana

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