Polkadot
The D'CENT Web SDK provides functions for signing transaction of coins.
- POLCKADOT(DOT)
- path: key path, wallet sign with that private key with a given key path (BIP32 ex) "m/44'/354'/0'/0/0").
- fee: fee, It is fee that wallet displays on the screen.
- symbol: symbol, It is a symbol that the wallet displays on the screen.
- decimals: polkadot's decimals.
D'CENT Bridgeversion 1.5.0 or higher is required.- D'CENT Biometric Wallet version 2.19.1 or higher is required.
import { ApiPromise, HttpProvider } from '@polkadot/api'
const httpProvider = new HttpProvider('https://rpc.polkadot.io');
const api = await ApiPromise({ provider: httpProvider });
// Wait until we are ready and connected
await api.isReady;
const blockNumber = await api.rpc.chain.getHeader()
const blockHash = await api.rpc.chain.getBlockHash(blockNumber.number.toHex())
// create SignerPayload
const signerPayload = api.createType('SignerPayload', {
genesisHash: api.genesisHash,
runtimeVersion: api.runtimeVersion,
version: api.extrinsicVersion,
blockHash: blockHash,
blockNumber: blockNumber.number,
era: api.createType('ExtrinsicEra', {
current: blockNumber.number,
period: 50
}),
nonce,
address: to,
method: api.tx.balances.transfer(to, amount).method,
});
const sigHash = signerPayload.toRaw().data
const transactionJson = {
coinType: DcentWebConnector.coinType.POLKADOT,
sigHash: sigHash,
path: `m/44'/354'/0'/0/0`,
decimals, // 12
fee,
symbol: 'DOT',
}
var result
try {
result = await DcentWebConnector.getPolKadotSignedTransaction(transactionJson);
} catch (e) {
console.log(e)
result = e
}
{
"header": {
"version": "1.0",
"response_from": "polkadot",
"status": "success"
},
"body": {
"command": "transaction",
"parameter": {
"signed_tx": "0x31aa13b5e04cb6fc6381ea0520bf7f6727ebdb6e96cd7ca8625bb3e3dd36cf0e2cee4ece13aa9f7ddc09ee10c74aa00af954201829d8016317f10f5a921dcc0d"
}
}
}
Last modified 3mo ago