@ledgerhq/coin-algorand/lib-es/signOperation.js

Ledger Algorand Coin integration

import { Observable } from "rxjs";
import { FeeNotLoaded } from "@ledgerhq/errors";
import { buildTransactionPayload, encodeToBroadcast, encodeToSign } from "./buildTransaction";
import { buildOptimisticOperation } from "./buildOptimisticOperation";
/**
 * Sign Transaction with Ledger hardware
 */
export const buildSignOperation = (signerContext) => ({ account, transaction, deviceId }) => new Observable(o => {
    let cancelled = false;
    async function main() {
        if (!transaction.fees) {
            throw new FeeNotLoaded();
        }
        const algoTx = await buildTransactionPayload(account, transaction);
        const toSign = encodeToSign(algoTx);
        const { freshAddressPath } = account;
        o.next({ type: "device-signature-requested" });
        const { signature } = await signerContext(deviceId, signer => signer.sign(freshAddressPath, toSign));
        if (cancelled)
            return;
        o.next({ type: "device-signature-granted" });
        if (!signature) {
            throw new Error("No signature");
        }
        const toBroadcast = encodeToBroadcast(algoTx, signature);
        const operation = buildOptimisticOperation(account, transaction);
        o.next({
            type: "signed",
            signedOperation: {
                operation,
                signature: toBroadcast.toString("hex"),
            },
        });
    }
    main().then(() => o.complete(), e => o.error(e));
    return () => {
        cancelled = true;
    };
});
export default buildSignOperation;
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