Ethereum & EVM compatible

Sign Transaction
The D'CENT Web SDK provides functions for signing transaction of coins.
getEthereumSignedTransaction()
Supported Coin Type
ETHEREUM
RSK
XDC
Parameters
coinType
nonce
gasPrice
gasLimit
to (address)
value
data
key path for signing
chain ID
Returned response object:
{
    "header": {
        "version": "1.0",
        "response_from": "ethereum",
        "status": "success"
    },
    "body": {
        "command": "transaction",
        "parameter": {
            "sign_v": "0x78",
            "sign_r": "0xf9e4c3ed......9557ad37",
            "sign_s": "0x697a2abf......b76c4cb2",
            "signed": "f86c0884......b76c4cb2"
        }
    }
}
getTokenSignedTransaction()
Supported Coin Type
ERC20
RRC20
XRC20
Parameters
coinType
nonce
gasPrice
gasLimit
value
key path for signing
chain ID
contract information example :
{
  name: 'OmiseGO',
  address: '0xd26114cd6EE289AccF82350c8d8487fedB8A0C07',
  to: '0x354609C4c9a15d4265cF6D94010568D5Cf4d0c1B',
  decimals: 18,
  value: '100000000000000000',
  symbol: 'OMG'
}  
Returned response object
{
    "header": {
        "version": "1.0",
        "response_from": "erc20",
        "status": "success"
    },
    "body": {
        "command": "transaction",
        "parameter": {
            "signed": "0xf8a91584......cc79c29a",
            "sign": {
                "sign_v": "0x26",
                "sign_r": "0x33930787......d4456f53",
                "sign_s": "0x708126c7......cc79c29a"
            }
        }
    }
}
Ethereum Signed Message
You can get a signature value to sign a user message with that private key With a given key path (BIP32). The input message is prefixed with 'Ethereum sign message' and then hashed and signed.
var message = 'This is a message!'
var result
try {
    result = await DcentWebConnector.getEthereumSignedMessage(message, "m/44'/60'/0'/0/0");
} catch (e) {
    console.log(e)
    result = e
}
Returned response object has:
{
    "header": {
        "version": "1.0",
        "response_from": "ethereum",
        "status": "success"
    },
    "body": {
        "command": "msg_sign",
        "parameter": {
            "address": "0x54b9c508aC61Eaf2CD8F9cA510ec3897CfB09382",
            "sign": "0x0d935339......06a6291b"
        }
    }
}
Signed Data
You can get a signature value to sign message with that private key With a given key path (BIP32). The input data is hex string format. The input data is hashed and signed.
var message = "0x1901f2cee375fa42b42143804025fc449deafd50cc031ca257e0b194a650a912090feb4221181ff3f1a83ea7313993ca9218496e424604ba9492bb4052c03d5c3df8"
var key =  "m/44'/60'/0'/0/0"
var result
try {
    result = await DcentWebConnector.getSignedData(key, message);
} catch (e) {
    console.log(e)
    result = e
}
Returned response object has:
{
    "header": {
        "version": "1.0",
        "response_from": "ethereum",
        "status": "success"
    },
    "body": {
        "command": "sign_data",
        "parameter": {
            "address": "0x54b9c508aC61Eaf2CD8F9cA510ec3897CfB09382",
            "sign": "0x0d935339......06a6291b"
        }
    }
}
Signed Message
You can get a signature value to sign a user message with that private key With a given key path (BIP32). The input message is prefixed depending on the coin type and then hashed and signed.
var message = 'This is a message!'
var key =  "m/44'/60'/0'/0/0"
var result
try {
    result = await DcentWebConnector.getSignedMessage( DcentWebConnector.coinType.ETHEREUM, key, message);
} catch (e) {
    console.log(e)
    result = e
}
Returned response object has:
{
    "header": {
        "version": "1.0",
        "response_from": "ethereum",
        "status": "success"
    },
    "body": {
        "command": "msg_sign",
        "parameter": {
            "address": "0x54b9c508aC61Eaf2CD8F9cA510ec3897CfB09382",
            "sign": "0x0d935339......06a6291b"
        }
    }
}
Address & XPUB
Klaytn
Last modified 4mo ago