WalletConnect (Evm and Aptos)

WalletConnect Kotlin SDK, implements 1.0.0 websocket based protocol.

Demo

Features

• Connect and disconnect
• Approve / Reject / Kill session
• Approve and reject eth_sign / personal_sign / eth_signTypedData
• Approve and reject eth_signTransaction / eth_sendTransaction
• Approve and reject bnb_sign (binance dex orders)
• session persistent / recovery
• switch evm chain by chainId wallet_switchEthereumChain
• switch to aptos chain by chainName wallet_switchEthereumChain
• Approve and reject aptos_sign
• Approve and reject aptos_signTransaction
• Approve and reject aptos_sendTransaction

connect test simple :wallectconnect-cc-example, https://wallectconnect-cc-example.vercel.app

Installation

Android releases are hosted on GitHub packages, you need to add GitHub access token to install it. Please checkout this installation guide.

dependencies {
    implementation "org.comingchat:wallet-connect-v1:$Tag"
}

replace the Tag in the code with latest

Usage

parse session from scanned QR code:

val peerMeta = WCPeerMeta(name = "App name", url = "https://website.com")
val string = "wc:..."
val session = WCSession.from(string) ?: throw InvalidSessionError // invalid session
// handle session
wcClient.connect(wcSession, peerMeta)

configure and handle incoming message:

val wcClient = WCClient(GsonBuilder(), okHttpClient)

wcClient.onDisconnect = { _, _ -> 
    onDisconnect() 
}

wcClient.onSessionRequest = { _, peer -> 
    // ask for user consent
}

wcClient.onDisconnect = { _, _ -> 
    // handle disconnect
}
wcClient.onFailure = { t -> 
    // handle failure
}
wcClient.onGetAccounts = { id -> 
    // handle get_accounts
}

wcClient.onEthSign = { id, message -> 
    // handle eth_sign, personal_sign, eth_signTypedData
}
wcClient.onEthSignTransaction = { id, transaction -> 
    // handle eth_signTransaction
}
wcClient.onEthSendTransaction = { id, transaction -> 
    // handle eth_sendTransaction
}

wcClient.onSignTransaction = { id, transaction -> 
    // handle bnb_sign
}

wcClient.onWalletChangeNetwork = { id, chainId->
    // handle wallet_switchEthereumChain
}

approve session

wcClient.approveSession(listOf(address), chainId)

approve request

wcClient.approveRequest(id, signResult) // hex formatted sign

disconnect

if (wcClient.session != null) {
    wcClient.killSession()
} else {
    wcClient.disconnect()
}

Proguard

keep models for gson,proguard-rules.pro

License

WalletConnect is available under the MIT license. See the LICENSE file for more info.