src/services/signers/casperSigner.js

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

/**
 * CasperSigner class
 * Used to sign a deployment with the Casper Signer extension
 */
export default class CasperSigner extends AbstractSigner {
  /**
   * Sign a given Deploy Object with the corresponding public key.
   * You must pass the active public key from the user and the public key where the deploy is going to be used.
   *
   * @param {DeployUtil.Deploy} deploy - Deploy object
   * @param {Object} options - Options object
   * @param {string} options.activeKey - Public key of the user.
   * @param {string} options.to - Public key of the targeted wallet.
   * @returns {Promise<DeployUtil.Deploy>} - Signed deploy object
   */
  static async sign(deploy, options = {}) {
    try {
      const signedJsonDeploy = await Signer.sign(DeployUtil.deployToJson(deploy), options.activeKey, options.to);
      const signedDeploy = await DeployUtil.deployFromJson(signedJsonDeploy);
      if (signedDeploy.ok) {
        return signedDeploy.val;
      }
      throw signedDeploy.val;
    } catch (e) {
      // eslint-disable-next-line no-console
      console.log(e);
      throw new SignError();
    }
  }
}