voluptasmollitia/packages/app/index.ts

Monorepo for the Firebase JavaScript SDK

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { FirebaseNamespace } from '@firebase/app-types';
import { firebase as firebaseNamespace } from './src/firebaseNamespace';
import { isNode, isBrowser } from '@firebase/util';
import { logger } from './src/logger';
import { registerCoreComponents } from './src/registerCoreComponents';

// Firebase Lite detection test
// eslint-disable-next-line @typescript-eslint/no-explicit-any
if (isBrowser() && (self as any).firebase !== undefined) {
  logger.warn(`
    Warning: Firebase is already defined in the global scope. Please make sure
    Firebase library is only loaded once.
  `);

  // eslint-disable-next-line
  const sdkVersion = ((self as any).firebase as FirebaseNamespace).SDK_VERSION;
  if (sdkVersion && sdkVersion.indexOf('LITE') >= 0) {
    logger.warn(`
    Warning: You are trying to load Firebase while using Firebase Performance standalone script.
    You should load Firebase Performance with this instance of Firebase to avoid loading duplicate code.
    `);
  }
}

const initializeApp = firebaseNamespace.initializeApp;

// TODO: This disable can be removed and the 'ignoreRestArgs' option added to
// the no-explicit-any rule when ESlint releases it.
// eslint-disable-next-line @typescript-eslint/no-explicit-any
firebaseNamespace.initializeApp = function (...args: any) {
  // Environment check before initializing app
  // Do the check in initializeApp, so people have a chance to disable it by setting logLevel
  // in @firebase/logger
  if (isNode()) {
    logger.warn(`
      Warning: This is a browser-targeted Firebase bundle but it appears it is being
      run in a Node environment.  If running in a Node environment, make sure you
      are using the bundle specified by the "main" field in package.json.
      
      If you are using Webpack, you can specify "main" as the first item in
      "resolve.mainFields":
      https://webpack.js.org/configuration/resolve/#resolvemainfields
      
      If using Rollup, use the @rollup/plugin-node-resolve plugin and specify "main"
      as the first item in "mainFields", e.g. ['main', 'module'].
      https://github.com/rollup/@rollup/plugin-node-resolve
      `);
  }
  return initializeApp.apply(undefined, args);
};

export const firebase = firebaseNamespace;

registerCoreComponents(firebase);

// eslint-disable-next-line import/no-default-export
export default firebase;