** Solana RPC Connection with TypesCript/Javascript via @solana/web3
Solana RPC offers several methods for interaction with networks, allowing you to read and write data from different sources. In this article, we will show you how to connect to Solana's network via@Solana/Web3.JS, which is a popular JavaScript library to interact with Solana Blockchain.
Prerequisites
Before you start, make sure you have:
- Solana developer account and create a local development environment (eg web3, truffle set).
- @solana/Web3.JS
package installed in your project.
- Knowledge with TypesCript and JavaScript.
Step 1: Create a new project
Create a new folder for your project and initialize it using NPM:
bash
MKDIR SOLAN-RPC-EXAMPLE
CD Solana-RPC-EXAMPLE
NPM Init -y
`
** Step 2: Install @solana/web3
Install the required package:
bash
NPM Install @Solana/Web3.js
`
Step 3: Create a new Typescript/Javascript file
Create a new file called Index.ts' and attach this code to set Solana Web3 service provider connection:
TypesCript
Import {web3} from ‘@solana/web3.js’;
Import {config} from ‘./config.json’; // Load Configuration
Const Web3 = New Web3 (Config.Web3url);
Export default Web3;
`
Step 4: Configure RPC Connection
Create a Config.json file with the following content:
`JSON
{
“RPCURL”: ” // Replace with your Solana RPC URL
“KeyPath”: “/dev/0”, // replace with your private key (if you use a pair of key)
“Network”: {
“ID”: 1, // Solana Network ID (eg Mainnet)
“Label”: “Mainnet” // Network etiquette
}
}
`
step 5: Set the connection
Change your file “Index.ts” to set the connection:
`TypesCript
Import {web3} from ‘@solana/web3.js’;
Import {config} from ‘./config.json’;
Const Web3 = New Web3 (Config.Web3url);
EXPORT CONST RPConnection = Web3.connect ();
`
Step 6: Check the connection
Use rpcconnection to check the connection. You can use the following code examples:
`TypesCript
// Get the current balance of a particular account
rpcconnection accounts.get (‘your-concount’);
// Send data to Solana via Web3 API
CONST TX = {{
Data: {
// Data to send to Solana (eg transaction script)
},
// Other options …
};
rpcconnection.sendtransaction (TX);
`
Full Code Example
Here is the full code:
`TypesCript
Import {web3} from ‘@solana/web3.js’;
Import {config} from ‘./config.json’;
Const Web3 = New Web3 (Config.Web3url);
Export default Web3;
import {
accounts,
Sendransaction
} from ‘../transactions’; // Replace with the transaction file
// Set the connection
Const rpcconnection = Web3.connect ();
// Check the connection
rpcconnection.accounts.get (‘your-concount’);
`
That’s it! You now have a Solana RPC connection via @@ solana/Web3.JSTypescript/JavaScript.
Note that this is only the first step. In order to interact with the network, you will need to set up and manage accounts, send transactions and obtain data from your application. For more information about Robstost applications on the Solana network, see the official@Solana/Web3.JS documentation.