@parity/api/src/transport/error.js

The Parity Promise-based API library for interfacing with Ethereum over RPC

// Copyright 2015-2019 Parity Technologies (UK) Ltd.
// This file is part of Parity.

// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with Parity.  If not, see <http://www.gnu.org/licenses/>.

const ExtendableError = require('es6-error');

const ERROR_CODES = {
  UNSUPPORTED_REQUEST: -32000,
  NO_WORK: -32001,
  NO_AUTHOR: -32002,
  NO_NEW_WORK: -32003,
  NO_WORK_REQUIRED: -32004,
  NOT_ENOUGH_DATA: -32006,
  UNKNOWN_ERROR: -32009,
  TRANSACTION_ERROR: -32010,
  EXECUTION_ERROR: -32015,
  EXCEPTION_ERROR: -32016,
  ACCOUNT_LOCKED: -32020,
  PASSWORD_INVALID: -32021,
  ACCOUNT_ERROR: -32023,
  SIGNER_DISABLED: -32030,
  DAPPS_DISABLED: -32031,
  NETWORK_DISABLED: -32035,
  REQUEST_REJECTED: -32040,
  REQUEST_REJECTED_LIMIT: -32041,
  REQUEST_NOT_FOUND: -32042,
  COMPILATION_ERROR: -32050,
  ENCRYPTION_ERROR: -32055,
  FETCH_ERROR: -32060,
  INVALID_PARAMS: -32602
};

class TransportError extends ExtendableError {
  constructor (method, code, message) {
    const m = `${method}: ${code}: ${message}`;

    super(m);

    this.code = code;
    this.type = Object
      .keys(ERROR_CODES)
      .find((key) => ERROR_CODES[key] === code) || '';

    this.method = method;
    this.text = message;
  }
}

TransportError.ERROR_CODES = ERROR_CODES;

TransportError.requestRejected = function (method = null) {
  return new TransportError(method, ERROR_CODES.REQUEST_REJECTED, 'Request has been rejected.');
};

module.exports = TransportError;