@ledgerhq/coin-hedera
Version:
Ledger Hedera Coin integration
44 lines • 1.68 kB
JavaScript
import { Observable } from "rxjs";
import { PublicKey } from "@hashgraph/sdk";
import { buildOptimisticOperation } from "./buildOptimisticOperation";
import { buildUnsignedTransaction } from "../api/network";
export const buildSignOperation = (signerContext) => ({ account, transaction, deviceId }) => new Observable(o => {
void (async function () {
try {
o.next({
type: "device-signature-requested",
});
const hederaTransaction = await buildUnsignedTransaction({
account,
transaction,
});
const accountPublicKey = PublicKey.fromString(account.seedIdentifier);
const res = await signerContext(deviceId, async (signer) => {
await hederaTransaction.signWith(accountPublicKey, async (bodyBytes) => {
return await signer.signTransaction(bodyBytes);
});
return hederaTransaction.toBytes();
});
o.next({
type: "device-signature-granted",
});
const operation = await buildOptimisticOperation({
account,
transaction,
});
o.next({
type: "signed",
signedOperation: {
operation,
// NOTE: this needs to match the inverse operation in js-broadcast
signature: Buffer.from(res).toString("base64"),
},
});
o.complete();
}
catch (err) {
o.error(err);
}
})();
});
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