@ledgerhq/coin-canton
Version:
78 lines • 3.42 kB
JavaScript
import { FeeNotLoaded } from "@ledgerhq/ledger-wallet-framework/errors";
import { decodeAccountId } from "@ledgerhq/ledger-wallet-framework/account";
import { encodeOperationId } from "@ledgerhq/ledger-wallet-framework/operation";
import { Observable } from "rxjs";
import { combine, craftTransaction } from "../common-logic";
import { signTransaction } from "../common-logic/transaction/sign";
export const buildSignOperation = (signerContext) => ({ account, deviceId, transaction }) => new Observable(o => {
async function main() {
const { fee } = transaction;
if (!fee)
throw new FeeNotLoaded();
try {
// o observables allows to define steps of the signing process with the device
o.next({
type: "device-signature-requested",
});
let transactionHash = "";
const signature = await signerContext(deviceId, async (signer) => {
const { id, freshAddressPath: derivationPath, xpub } = account;
const address = xpub ?? decodeAccountId(id).xpubOrAddress;
const params = {
recipient: transaction.recipient,
amount: transaction.amount,
expireInSeconds: transaction.expireInSeconds ?? 24 * 60 * 60, // Default to 1 day
tokenId: transaction.tokenId,
};
if (transaction.instrumentAdmin) {
params.instrumentAdmin = transaction.instrumentAdmin;
}
if (transaction.memo) {
params.memo = transaction.memo;
}
const { nativeTransaction, serializedTransaction, hash } = await craftTransaction(account.currency, {
address,
}, params);
transactionHash = hash || "";
const signatureResult = await signTransaction(signer, derivationPath, nativeTransaction);
return combine(serializedTransaction, `${signatureResult.signature}__PARTY__${address}`);
});
o.next({
type: "device-signature-granted",
});
// We create an optimistic operation here, the framework will then replace this transaction with the one returned by the indexer
const hash = transactionHash;
const operation = {
id: encodeOperationId(account.id, hash, "OUT"),
hash,
accountId: account.id,
type: "OUT",
value: transaction.amount,
fee,
blockHash: null,
blockHeight: null,
senders: [account.freshAddress],
recipients: [transaction.recipient],
date: new Date(),
extra: {},
};
o.next({
type: "signed",
signedOperation: {
operation,
signature,
},
});
}
catch (e) {
if (e instanceof Error) {
const errorMessage = e?.data?.resultMessage ||
e.message;
throw new Error(errorMessage);
}
throw e;
}
}
main().then(() => o.complete(), e => o.error(e));
});
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