1-install-and-setup.md

1. Installation and Setup

Getting started with AngularFire2 is easy with the Angular CLI. Follow the 10 steps below to get started. Don't worry, we're always working to make this shorter.

Using Ionic and the Ionic CLI? Check out these specific instructions for Ionic and their CLI.

0. Prerequisites

Before you start installing AngularFire2, make sure you have latest version of angular-cli installed. To verify run the command ng -v and ensure you see angular-cli: 1.x.x-beta.xx. The lowest compatible version is 1.x.x-beta.14.

If not, you may need to do the following:

# if you have the wrong cli version only
npm uninstall -g angular-cli
npm uninstall -g @angular/cli
npm cache clean

# reinstall clean version
npm install -g @angular/cli@latest

You need the Angular CLI, typings, and TypeScript.

npm install -g @angular/cli@latest
# or install locally
npm install @angular/cli --save-dev
# make sure you have typings installed
npm install -g typings
npm install -g typescript

1. Create a new project

ng new <project-name>
cd <project-name>

The Angular CLI's new command will set up the latest Angular build in a new project structure.

2. Test your Setup

ng serve
open http://localhost:4200

You should see a message that says App works!

3. Install AngularFire 2 and Firebase

npm install angularfire2 firebase --save

Now that you have a new project setup, install AngularFire2 and Firebase from npm.

4. Add Firebase config to environments variable

Open /src/environments/environment.ts and add your Firebase configuration:

export const environment = {
  production: false,
  firebase: {
    apiKey: '<your-key>',
    authDomain: '<your-project-authdomain>',
    databaseURL: '<your-database-URL>',
    projectId: '<your-project-id>',
    storageBucket: '<your-storage-bucket>',
    messagingSenderId: '<your-messaging-sender-id>'
  }
};

5. Setup @NgModule for the AngularFireModule

Open /src/app/app.module.ts, inject the Firebase providers, and specify your Firebase configuration. This can be found in your project at the Firebase Console:

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';
import { AngularFireModule } from 'angularfire2';
import { environment } from '../environments/environment';

@NgModule({
  imports: [
    BrowserModule,
    AngularFireModule.initializeApp(environment.firebase)
  ],
  declarations: [ AppComponent ],
  bootstrap: [ AppComponent ]
})
export class AppModule {}

Custom FirebaseApp Names

You can optionally provide a custom FirebaseApp name with initializeApp.

@NgModule({
  imports: [
    BrowserModule,
    AngularFireModule.initializeApp(environment.firebase, 'my-app-name')
  ],
  declarations: [ AppComponent ],
  bootstrap: [ AppComponent ]
})
export class AppModule {}

6. Setup individual @NgModules

After adding the AngularFireModule you also need to add modules for the individual @NgModules that your application needs.

• AngularFireAuthModule
• AngularFireDatabaseModule
• AngularFireStorageModule (Future release)
• AngularFireMessagingModule (Future release)

Adding the Firebase Database and Auth Modules

For example if your application was using both Firebase authentication and the Firebase database you would add:

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';
import { AngularFireModule } from 'angularfire2';
import { AngularFireDatabaseModule } from 'angularfire2/database';
import { AngularFireAuthModule } from 'angularfire2/auth';
import { environment } from '../environments/environment';

@NgModule({
  imports: [
    BrowserModule,
    AngularFireModule.initializeApp(environment.firebase, 'my-app-name'), // imports firebase/app needed for everything
    AngularFireDatabaseModule, // imports firebase/database, only needed for database features
    AngularFireAuthModule, // imports firebase/auth, only needed for auth features
  ],
  declarations: [ AppComponent ],
  bootstrap: [ AppComponent ]
})
export class AppModule {}

7. Inject AngularFireDatabase

Open /src/app/app.component.ts, and make sure to modify/delete any tests to get the sample working (tests are still important, you know):

import { Component } from '@angular/core';
import { AngularFireDatabase, FirebaseListObservable } from 'angularfire2/database';

@Component({
  selector: 'app-root',
  templateUrl: 'app.component.html',
  styleUrls: ['app.component.css']
})
export class AppComponent {
  constructor(db: AngularFireDatabase) {

  }
}

8. Bind to a list

In /src/app/app.component.ts:

import { Component } from '@angular/core';
import { AngularFireDatabase, FirebaseListObservable } from 'angularfire2/database';

@Component({
  selector: 'app-root',
  templateUrl: 'app.component.html',
  styleUrls: ['app.component.css']
})
export class AppComponent {
  items: FirebaseListObservable<any[]>;
  constructor(db: AngularFireDatabase) {
    this.items = db.list('/items');
  }
}

Open /src/app/app.component.html:

<ul>
  <li class="text" *ngFor="let item of items | async">
    {{item.$value}}
  </li>
</ul>

9. Run your app

ng serve

Run the serve command and go to localhost:4200 in your browser.

And that's it! If it's totally borked, file an issue and let us know.

Next Step: Retrieving data as objects

Troubleshooting

1. Cannot find namespace 'firebase'.

If you run into this error while trying to invoke ng serve, open src/tsconfig.json and add the "types" array as follows:

{
  "compilerOptions": {
    ...
    "typeRoots": [
      "../node_modules/@types"
    ],

    // ADD THIS
    "types": [
      "firebase"
    ]
  }
}

2. Cannot find name 'require' (This is just a temporary workaround for the Angular CLI).

If you run into this error while trying to invoke ng serve, open src/typings.d.ts and add the following two entries as follows:

declare var require: any;
declare var module: any;