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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/@substrate/txwrapper-core/lib/core/construct

Просмотр файла: createSigningPayloadToU8a.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.createSigningPayloadToU8a = void 0;
const types_1 = require("@polkadot/types");
/**
 * Create a signing payload with the method prefix removed.
 * If the length of the payload is above 256, then it will be hashed using
 * blake2_256.
 *
 * Ref: https://github.com/paritytech/substrate/blob/master/primitives/runtime/src/generic/unchecked_extrinsic.rs#L171-L220
 *
 * This is specifically useful for external signers who will not be using
 * `ExtrinsicPayload.sign(<KeyPair>)`, but instead their own method.
 *
 * @param unsigned UnsignedTransaction to be passed in
 * @param options Registry used for constructing the payload.
 */
function createSigningPayloadToU8a(unsigned, options) {
    const { registry } = options;
    const payload = new types_1.GenericSignerPayload(registry, {
        ...unsigned,
        runtimeVersion: {
            specVersion: unsigned.specVersion,
            transactionVersion: unsigned.transactionVersion,
        },
    }).toPayload();
    const extrinsicPayload = registry.createType('ExtrinsicPayload', payload, {
        version: payload.version,
    });
    /**
     * Makes sure that the method bytes in the payload doesnt have a length prefix
     * included.
     */
    const extrinsicPayloadU8a = extrinsicPayload.toU8a({ method: true });
    return extrinsicPayloadU8a.length > 256
        ? registry.hash(extrinsicPayloadU8a)
        : extrinsicPayloadU8a;
}
exports.createSigningPayloadToU8a = createSigningPayloadToU8a;
//# sourceMappingURL=createSigningPayloadToU8a.js.map

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