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());
Events
Trigger
accountsChanged
Receive when active account changed in Extension
networkChanged
Receive when active network changed in Extension
chainChanged
Receive when active chain changed in Extension
disconnect
Receive when disconnect from Extension
close
Alias for disconnect event
Method
Description
on(event, callback)
Add event listener
off(event, callback)
Remove event listener

Integration through Wallet Adapter

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On this page
To detect Coin98 Extension with Solana
To connect Coin98 Extension Wallet
To disconnect Coin98 Extension Wallet
To experience functions
Get Current Account
Check wallet whether exists or not
Sign Transaction
Verify Signature
RPC Request
To handle events
List of events
Integration through Wallet Adapter