Introducing the Web3.Js V2 Wallet button on Solana
As you successfully build Sveltekit + @Solana/Wallet-Adapter-Base and @Solana/Wallet-Adapter-Phantom Frontend Dapp, it’s time to migrate the improvised secret, performance and compatibility for Web3.js V2 With Solana. The latest Solana wallet adapters. In this article, we examine how to implement the wallet button using Web3.js V2.
Prerequisites
- Make sure that the following is installed:
+ Sveltekit (v3 or higher)
+ @Solana/wallet-adapter-base
+ @Solana/Wallet-Adapter-Fantom
+ Web3.js v2
- Create a new Solana wallet on your local machine with the “Solana-Keygen” command.
- Install the required packages in the SVLETEKIT project:
`Bash
NPM Install @Solana/Wallet-Adapter-Base @Llatest @Solana/Wallet-Adapter-Phantom
`
Create the ingredient of a new wallet button
Create a new file Components/Walettbutton.svelte in the ingredient in the Sveltekit component and add the following code:
Svelte
Import {usewallet} from 'svelte -Wallet';
Exported wallet;
`
Perform the wallet button
During this exam, we use the usewallet
hook of Sveltekit to connect to the Solana wallet. When clicking on the button, you will call the "Connect ()" method of "Wallet" object, which initializes the wallet and displays the connection status.
migrate to web3.js v2
To use web3.js v2, you need to install the "Web3" package in the SVELTEKIT project:
`Bash
NPM install the web3@latest
`
Then update the "Components/Walletbutton.svelte" file instead of Solana-Keygen ': To use' Web3 ':
Svelte
Import {useweb3} from 'web3';
Export Web3;
`
Update the wallet button to display the web3 state
You can add a unique feature to show your wallet status:
`Javascript
Import {useweb3} from 'web3';
Export Web3;
CONST HANDAGEWALLETSTATUS = () => {{{{{{
if (web3.isconnected ()) {
console.log ('connect to the network!');
} Else {
console.log ('disconnected from the network. ”);
}
};
On: click () => handingwalletstatus ());
This is a basic example of departure. You can customize the wallet button to display the information you want, such as the wallet balance or a list of connected addresses.
Conclusion
Following the article, you successfully introduced a wallet button using Web3.js V2 on Solana. This migration improves security, performance and compatibility with the latest wallet adapters. Don't forget to update all copies of "Solana-Keygen" and Web3 "in the Sveltekit project to use web3.js v2.
Example Use the case
Here's an example of how to use this wallet button in a simple Solana Dapp:
`Svelte
Import {usewallet} from 'svelte -Wallet';
Exported wallet;
CONST HANDYLEDISCONNECT = () => {{{{{{{
console.log ('disconnected from the network. ”);
Web3.Disconnect ();
};
Export an application;
USEFECT (() => {{
Web3.on ('accounts', accounts => {
console.log ('connected to the network:', accounts);
});
Web3.on ('Balance', Balance => {{
console.log ('Balance:', balance);
});
}, [Web3]);
Async Function Handleconnect () {
If (window Solana) {
Wait for USewallet ().
Leave a Reply