Init Firebase config

src/app/app.module.ts

@@ -4,15 +4,22 @@ import { NgModule } from '@angular/core';
 import { AppComponent } from './app.component';
 import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
 
+import { AngularFireModule } from '@angular/fire';
+import { AngularFireDatabaseModule } from '@angular/fire/database';
+import { environment } from '@env/environment';
+
 @NgModule({
   declarations: [
     AppComponent
   ],
   imports: [
     BrowserModule,
-    BrowserAnimationsModule
+    BrowserAnimationsModule,
+    AngularFireModule.initializeApp(environment.firebaseConfig),
+    AngularFireDatabaseModule,
   ],
   providers: [],
-  bootstrap: [AppComponent]
+  bootstrap: [ AppComponent ]
 })
-export class AppModule { }
+export class AppModule {
+}