@polkadot/api/base/index.js

Promise and RxJS wrappers around the Polkadot JS RPC

// Copyright 2017-2022 @polkadot/api authors & contributors
// SPDX-License-Identifier: Apache-2.0
import { assert, isString, objectSpread, u8aToHex, u8aToU8a } from '@polkadot/util';
import { Getters } from "./Getters.js";
export class ApiBase extends Getters {
  /**
   * @description Create an instance of the class
   *
   * @param options Options object to create API instance or a Provider instance
   *
   * @example
   * <BR>
   *
   * ```javascript
   * import Api from '@polkadot/api/promise';
   *
   * const api = new Api().isReady();
   *
   * api.rpc.subscribeNewHeads((header) => {
   *   console.log(`new block #${header.number.toNumber()}`);
   * });
   * ```
   */
  constructor(options = {}, type, decorateMethod) {
    super(options, type, decorateMethod);
  }
  /**
   * @description Connect from the underlying provider, halting all network traffic
   */


  connect() {
    return this._rpcCore.connect();
  }
  /**
   * @description Disconnect from the underlying provider, halting all network traffic
   */


  disconnect() {
    this._unsubscribe();

    return this._rpcCore.disconnect();
  }
  /**
   * @description Set an external signer which will be used to sign extrinsic when account passed in is not KeyringPair
   */


  setSigner(signer) {
    this._rx.signer = signer;
  }
  /**
   * @description Signs a raw signer payload, string or Uint8Array
   */


  async sign(address, data, {
    signer
  } = {}) {
    if (isString(address)) {
      const _signer = signer || this._rx.signer;

      assert(_signer === null || _signer === void 0 ? void 0 : _signer.signRaw, 'No signer exists with a signRaw interface. You possibly need to pass through an explicit keypair for the origin so it can be used for signing.');
      return (await _signer.signRaw(objectSpread({
        type: 'bytes'
      }, data, {
        address
      }))).signature;
    }

    return u8aToHex(address.sign(u8aToU8a(data.data)));
  }

}