@ledgerhq/coin-internet_computer/lib-es/bridge/signOperation.js

Ledger Internet Computer integration

import { Observable } from "rxjs";
import { getAddress } from "./bridgeHelpers/addresses";
import { getTxnExpirationDate, getTxnMetadata, getUnsignedTransaction, signICPTransaction, } from "./bridgeHelpers/icpRosetta";
import { buildOptimisticOperation } from "./buildOptimisticOperation";
import { getPath } from "../common-logic";
export const buildSignOperation = (signerContext) => ({ account, transaction, deviceId }) => new Observable(o => {
    async function main() {
        const { xpub } = account;
        const { derivationPath } = getAddress(account);
        const { unsignedTxn, payloads } = await getUnsignedTransaction(transaction, account);
        o.next({
            type: "device-signature-requested",
        });
        const { signedTxn } = await signICPTransaction({
            signerContext,
            deviceId,
            unsignedTxn,
            path: getPath(derivationPath),
            payloads,
            pubkey: xpub ?? "",
        });
        o.next({
            type: "device-signature-granted",
        });
        const { hash } = await getTxnMetadata(signedTxn);
        const operation = await buildOptimisticOperation(account, transaction, hash);
        o.next({
            type: "signed",
            signedOperation: {
                operation,
                signature: signedTxn,
                expirationDate: getTxnExpirationDate(unsignedTxn),
            },
        });
    }
    main().then(() => o.complete(), e => o.error(e));
});
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