Add snippet for Auth Emulator + Google Credential (#213)

Author: samtstern

auth-next/emulator-suite.js

@@ -10,3 +10,15 @@ function emulatorConnect() {
   // [END auth_emulator_connect]
 }
 
+function emulatorGoogleCredential() {
+  // [START auth_emulator_google_credential]
+  const { getAuth, signInWithCredential, GoogleAuthProvider } = require("firebase/auth");
+
+  const auth = getAuth();
+  signInWithCredential(auth, GoogleAuthProvider.credential(
+    '{"sub": "abc123", "email": "[email protected]", "email_verified": true}'
+  ));  
+  // [END auth_emulator_google_credential]
+}
+
+

auth/emulator-suite.js

@@ -3,7 +3,16 @@ import "firebase/auth";
 
 function emulatorConnect() {
   // [START auth_emulator_connect]
-  var auth = firebase.auth();
+  const auth = firebase.auth();
   auth.useEmulator("http://localhost:9099");
   // [END auth_emulator_connect]
 }
+
+function emulatorGoogleCredential() {
+  // [START auth_emulator_google_credential]
+  const auth = firebase.auth();
+  auth.signInWithCredential(firebase.auth.GoogleAuthProvider.credential(
+    '{"sub": "abc123", "email": "[email protected]", "email_verified": true}'
+  ));  
+  // [END auth_emulator_google_credential]
+}

snippets/auth-next/emulator-suite/auth_emulator_google_credential.js

@@ -0,0 +1,14 @@
+// This snippet file was generated by processing the source file:
+// ./auth-next/emulator-suite.js
+//
+// To update the snippets in this file, edit the source and then run
+// 'npm run snippets'.
+
+// [START auth_emulator_google_credential_modular]
+import { getAuth, signInWithCredential, GoogleAuthProvider } from "firebase/auth";
+
+const auth = getAuth();
+signInWithCredential(auth, GoogleAuthProvider.credential(
+  '{"sub": "abc123", "email": "[email protected]", "email_verified": true}'
+));  
+// [END auth_emulator_google_credential_modular]