Solana DApps Integration

Welcome to Coin98 Extension Wallet Developer Guide. This documentation contains guides for developers to get started developing on Coin98 Extension Wallet

To detect Coin98 Extension with Solana

To detect whether your browser is running Coin98 Extension, please use:

if(window.coin98){
    console.log('Coin98 Extension is installed!');
}

Notice: Coin98 Extension Testnet is under development and not available now. The Coin98 Extension on Ethereum JavaScript provider API is specified by EIP-1193. Support window.coin98.sol


To connect Coin98 Extension Wallet

To connect Coin98 Extension means to access the user's [blockchain - like Ethereum] account(s).

// Connect & get accounts
window.coin98.sol.request({method: 'sol_accounts'});
// Alias for connection
window.coin98.sol.request({method: 'sol_requestAccounts'});​
//Check if dapp connected
window.coin98.sol.isConnected();

To disconnect Coin98 Extension Wallet

To disconnect Coin98 Extension, please use:

window.coin98.sol.disconnect()

To experience functions

Once your account is connected, let's start experiencing more functions.‌

Get Current Account

return Promise<Array[String]>

  • If wallet can not be found, return [] instead of throw Error

window.coin98.sol.request({ method: 'sol_accounts' }).then(accounts => {
  if (accounts[0]) {
    // Do something with accounts
  } else {
    // Wallet not found
  }
})

Check wallet whether exists or not

return Promise<{data: Boolean}>

window.coin98.sol.request({ method: 'has_wallet', params: ['solana'] })
// Example
window.coin98.sol.request({ method: 'has_wallet', params: ['solana'] }).then(() => {
  // Wallet Exists
}).catch(e => { 
  // Wallet not found
})

Sign Transaction

return: `Promise<({signature: base58, publicKey: PublicKey})>

// Example Sign Transaction
const signature = window.coin98.sol.request({
    method: 'sol_sign',
    params: [<Transaction>]
}).then(({publicKey, signature}) => {
	//Do something with publicKey and signature
});

Verify Signature

return Promise<boolean>

window.coin98.sol.request({
  method: 'sol_verify',
  params: [signature, msg]
})

RPC Request

return Promise<Solana RPC> Currently only support HTTP(s) method Reference: RPC Method

window.coin98.sol.request({method: '<Your Method>', params: [args1,....]})

To handle events

List of events

Currently we only support some action event from wallet extension

window.coin98.sol.on('event_name', callback);
//Example
window.coin98.sol.on('close', () => window.location.reload());
window.coin98.sol.on('accountsChanged', () => window.location.reload());

Integration through Wallet Adapter

https://github.com/solana-labs/wallet-adapter

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