src/services/signers/localSigner.js

import { DeployUtil } from 'casper-js-sdk';
import SignError from '../errors/signError';
import AbstractSigner from './abstractSigner';

/**
 * @typedef { import('casper-js-sdk/dist/lib/Keys').AsymmetricKey } AsymmetricKey
 */

/**
 * LocalSigner class
 * Used to sign a deployment with local keys
 */
export default class LocalSigner extends AbstractSigner {
  /**
   * Sign a given Deploy Object with the corresponding key.
   *
   * @param {DeployUtil.Deploy} deploy - Deploy object
   * @param {Object} options - Options object
   * @param {AsymmetricKey} options.key - AsymmetricKey of the user.
   * @returns {Promise<DeployUtil.Deploy>} - Signed deploy object
   */
  static async sign(deploy, options = {}) {
    try {
      return DeployUtil.signDeploy(deploy, options.key);
    } catch (e) {
      // eslint-disable-next-line no-console
      console.log(e);
      throw new SignError();
    }
  }
}