feat(auth, multi-tenant): expose user.tenantId in javascript

Author: mikehardy

packages/auth/android/src/main/java/io/invertase/firebase/auth/ReactNativeFirebaseAuthModule.java

@@ -1970,6 +1970,7 @@ private WritableMap firebaseUserToMap(FirebaseUser user) {
     final String provider = user.getProviderId();
     final boolean verified = user.isEmailVerified();
     final String phoneNumber = user.getPhoneNumber();
+    final String tenantId = user.getTenantId();
 
     userMap.putString("uid", uid);
     userMap.putString("providerId", provider);
@@ -2000,6 +2001,12 @@ private WritableMap firebaseUserToMap(FirebaseUser user) {
       userMap.putNull("phoneNumber");
     }
 
+    if (tenantId != null && !"".equals(tenantId)) {
+      userMap.putString("tenantId", tenantId);
+    } else {
+      userMap.putNull("tenantId");
+    }
+
     userMap.putArray("providerData", convertProviderData(user.getProviderData(), user));
 
     WritableMap metadataMap = Arguments.createMap();

packages/auth/ios/RNFBAuth/RNFBAuthModule.m

@@ -1210,6 +1210,7 @@ - (NSDictionary *)firebaseUserToDict:(FIRUser *)user {
       @"providerData": [self convertProviderData:user.providerData],
       keyProviderId: [user.providerID lowercaseString],
       @"refreshToken": user.refreshToken,
+      @"tenantId": user.tenantID ? (id) user.tenantID : [NSNull null],
       keyUid: user.uid
   };
 }

packages/auth/lib/User.js

@@ -52,6 +52,10 @@ export default class User {
     return this._user.phoneNumber || null;
   }
 
+  get tenantId() {
+    return this._user.tenantId || null;
+  }
+
   get photoURL() {
     return this._user.photoURL || null;
   }

packages/auth/lib/index.d.ts

@@ -397,6 +397,10 @@ export namespace FirebaseAuthTypes {
      * Returns the unique identifier of the provider type that this instance corresponds to.
      */
     providerId: string;
+    /**
+     * Returns a string representing the multi-tenant tenant id. This is null if the user is not associated with a tenant.
+     */
+    tenantId?: string;
     /**
      * Returns a user identifier as specified by the authentication provider.
      */
@@ -1247,6 +1251,7 @@ export namespace FirebaseAuthTypes {
      * await firebase.auth().setTenantId('tenant-123');
      * ```
      *
+     * @error auth/invalid-tenant-id if the tenant id is invalid for some reason
      * @param tenantId the tenantID current app bind to.
      */
     setTenantId(tenantId: string): Promise<void>;