tc-connect v0.0.2
TC Connect
TC connect is a simple javascript library that connects apps to Trustless Computer Wallet to retrieve user wallet addresses and sign transactions.
Installation
With Yarn:
yarn add https://github.com/TrustlessComputer/tc-connect
Connect wallet
1. Example code
import * as TC_CONNECT from "tc-connect";
const CONNECT_URL = 'https://wadary.regtest.trustless.computer/relayer';
const WALLET_URL = 'https://newbitcoinwallet.io';
const connector = new TC_CONNECT.DappConnect(CONNECT_URL, WALLET_URL);
try {
const account = await connector.requestAccount({
target: "_blank",
redirectURL: "",
signMessage: "",
});
console.log("account", account);
} catch (e) {
// todo handle error
// Reject | Create transaction error
}
2. Request
target
: window.open type"_blank" | "_parent" | "_self" | "_top"
redirectURL
:optional
The url you want to redirect to when the request is successful.signMessage
:optional
Message for sign.
3. Response
tcAddress
: TC wallet address in use.btcAddress
: BTC wallet address in use.accounts
: Wallet's list of available accounts.name
: The account name.tcAddress
: TC wallet address.btcAddress
: BTC wallet address.
signature
: The signature is signed bytcAddress
if requestsignMessage
.
Sign Message
1. Example code
import * as TC_CONNECT from "tc-connect";
const CONNECT_URL = 'https://wadary.regtest.trustless.computer/relayer';
const WALLET_URL = 'https://browser-beta.trustlesswallet.io';
const connector = new TC_CONNECT.DappConnect(CONNECT_URL, WALLET_URL);
try {
const resp = await connection.requestSignMessage({
target: "_blank",
signMessage: "Hellow world.",
fromAddress: "0x4821eaeb37061E3c26b2264838e788F8de06bdcF"
})
console.log("sign response", resp);
} catch (e) {
// todo handle error
// Reject | Create transaction error
}
2. Request
target
: window.open type"_blank" | "_parent" | "_self" | "_top"
redirectURL
:optional
The url you want to redirect to when the request is successful.signMessage
: Message for sign.
3. Response
tcAddress
: TC wallet address in use.btcAddress
: BTC wallet address in use.accounts
: Wallet's list of available accounts.name
: The account name.tcAddress
: TC wallet address.btcAddress
: BTC wallet address.
signature
: The signature is signed bytcAddress
.
Sign Transaction
Contract Integration
1. Define ABI
const ABI = [
{
"inputs": [
{
"internalType": "contract WrappedToken",
"name": "token",
"type": "address"
},
{
"internalType": "uint256",
"name": "amount",
"type": "uint256"
},
{
"internalType": "string",
"name": "externalAddr",
"type": "string"
}
],
"name": "burn",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
];
2: Create calldata
import { ethers } from "ethers";
const ContractInterface = new ethers.utils.Interface(ABI);
const encodeAbi = ContractInterface.encodeFunctionData("burn", [
tokenAddress,
burnAmount,
receiver
]);
3. Request sign transaction
import * as TC_CONNECT from "tc-connect";
const CONNECT_URL = 'https://wadary.regtest.trustless.computer/relayer';
const WALLET_URL = 'https://trustlesswallet.io';
const connector = new TC_CONNECT.DappConnect(CONNECT_URL, WALLET_URL);
const toAddress = "0xFC9a05654a5bBaBBc7c230eB718b363C23d833D2";
const response = await connector.requestSign({
target: "_blank",
calldata: encodeAbi,
to: toAddress,
value: "",
redirectURL: "https://dapp_url.com",
isInscribe: true,
gasPrice: undefined,
gasLimit: undefined,
functionType: 'Burn',
functionName: 'burn(address,uint256,string)',
});
console.log('Sign transaction response: ', response);
4. Request Payload
target
: window.open type"_blank" | "_parent" | "_self" | "_top"
calldata
: calldata for sign and send transaction.to
: destination address.isExecuteTransaction
:optional
Test execute transaction before broadcast, defaulttrue
.value
:optional
value TC sending transaction. // 1e18 = 1 TCisInscribe
: a flag to check whether to inscribe Bitcoin transaction:isInscribe = true
: Sign TC and Inscribe Bitcoin transaction.isInscribe = false
: Sign TC and do not Inscribe Bitcoin transaction.
gasPrice
:optional
auto estimated.gasLimit
:optional
auto estimated.redirectURL
:optional
The url you want to redirect to when the request is successful.
5. Response Payload
tcHash
: TC transaction hash.btcHash
:optional
BTC transaction hash.to
:optional
destination address.from
: sender address.
Contract Deployment
1. Define ABI
const ABI = [
{
"inputs": [
{
"internalType": "address",
"name": "to",
"type": "address"
}
],
"name": "delegate",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "voter",
"type": "address"
}
],
"name": "giveRightToVote",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "bytes32[]",
"name": "proposalNames",
"type": "bytes32[]"
}
],
"stateMutability": "nonpayable",
"type": "constructor"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "proposal",
"type": "uint256"
}
],
"name": "vote",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [],
"name": "chairperson",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"name": "proposals",
"outputs": [
{
"internalType": "bytes32",
"name": "name",
"type": "bytes32"
},
{
"internalType": "uint256",
"name": "voteCount",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"name": "voters",
"outputs": [
{
"internalType": "uint256",
"name": "weight",
"type": "uint256"
},
{
"internalType": "bool",
"name": "voted",
"type": "bool"
},
{
"internalType": "address",
"name": "delegate",
"type": "address"
},
{
"internalType": "uint256",
"name": "vote",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "winnerName",
"outputs": [
{
"internalType": "bytes32",
"name": "winnerName_",
"type": "bytes32"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "winningProposal",
"outputs": [
{
"internalType": "uint256",
"name": "winningProposal_",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
}
];
2. Create calldata
const arguments = ["0x52a6eb687cd22e80d3342eac6fcc7f2e19209e8f83eb9b82e81c6f3e6f30743b", "0xf84cdc2564441bb489174122b9ba5a4f8c92df198c33d0dc2affe1429d37f59b"];
const byteCode = 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const web3 = new Web3();
const ContractInterface = new web3.eth.Contract(ABI);
const encodeABI = ContractInterface.deploy({
data: bytecode,
arguments: [
arguments
]
}).encodeABI();
3. Request sign transaction
const connector = new TC_CONNECT.DappConnect(CONNECT_URL, WALLET_URL);
const response = await connector.requestSign({
target: "_blank",
calldata: encodeABI,
to: "",
value: "",
isInscribe: true,
functionType: 'Contract Deployment',
functionName: 'constructor(bytes32[])',
});
console.log('Deploy contract response: ', response);