[auth] Support updatePhoneNumber

android/src/main/java/io/invertase/firebase/auth/RNFirebaseAuth.java

@@ -711,6 +711,63 @@ class RNFirebaseAuth extends ReactContextBaseJavaModule {
     }
   }
 
+  /**
+   * updatePhoneNumber
+   *
+   * @param provider
+   * @param authToken
+   * @param authSecret
+   * @param promise
+   */
+  @ReactMethod
+  private void updatePhoneNumber(
+    String appName,
+    String provider,
+    String authToken,
+    String authSecret,
+    final Promise promise
+  ) {
+    FirebaseApp firebaseApp = FirebaseApp.getInstance(appName);
+    final FirebaseAuth firebaseAuth = FirebaseAuth.getInstance(firebaseApp);
+    FirebaseUser user = firebaseAuth.getCurrentUser();
+
+    if(!provider.equals("phone")) {
+      promise.reject(
+        "auth/invalid-credential",
+        "The supplied auth credential does not have a phone provider."
+      );
+    }
+
+    PhoneAuthCredential credential = getPhoneAuthCredential(authToken, authSecret);
+
+    if (credential == null) {
+      promise.reject(
+        "auth/invalid-credential",
+        "The supplied auth credential is malformed, has expired or is not currently supported."
+      );
+    } else if (user == null) {
+      promiseNoUser(promise, false);
+      Log.e(TAG, "updatePhoneNumber:failure:noCurrentUser");
+    } else {
+      Log.d(TAG, "updatePhoneNumber");
+      user
+        .updatePhoneNumber(credential)
+        .addOnCompleteListener(new OnCompleteListener<Void>() {
+          @Override
+          public void onComplete(@NonNull Task<Void> task) {
+            if (task.isSuccessful()) {
+              Log.d(TAG, "updatePhoneNumber:onComplete:success");
+              promiseWithUser(firebaseAuth.getCurrentUser(), promise);
+            } else {
+              Exception exception = task.getException();
+              Log.e(TAG, "updatePhoneNumber:onComplete:failure", exception);
+              promiseRejectAuthException(promise, exception);
+            }
+          }
+        });
+    }
+  }
+
   /**
    * updateProfile
    *
@@ -1452,16 +1509,7 @@ class RNFirebaseAuth extends ReactContextBaseJavaModule {
       case "oauth":
         return OAuthProvider.getCredential(provider, authToken, authSecret);
       case "phone":
-        // If the phone number is auto-verified quickly, then the verificationId can be null
-        // We cached the credential as part of the verifyPhoneNumber request to be re-used here
-        // if possible
-        if (authToken == null && mCredential != null) {
-          PhoneAuthCredential credential = mCredential;
-          // Reset the cached credential
-          mCredential = null;
-          return credential;
-        }
-        return PhoneAuthProvider.getCredential(authToken, authSecret);
+        return getPhoneAuthCredential(authToken, authSecret);
       case "password":
         // authToken = email
         // authSecret = password
@@ -1475,6 +1523,25 @@ class RNFirebaseAuth extends ReactContextBaseJavaModule {
     }
   }
 
+  /**
+   * Returns an instance of PhoneAuthCredential, potentially cached
+   */
+  private PhoneAuthCredential getPhoneAuthCredential(
+    String authToken,
+    String authSecret
+  ) {
+    // If the phone number is auto-verified quickly, then the verificationId can be null
+    // We cached the credential as part of the verifyPhoneNumber request to be re-used here
+    // if possible
+    if (authToken == null && mCredential != null) {
+      PhoneAuthCredential credential = mCredential;
+      // Reset the cached credential
+      mCredential = null;
+      return credential;
+    }
+    return PhoneAuthProvider.getCredential(authToken, authSecret);
+  }
+
   @ReactMethod
   public void getToken(String appName, Boolean forceRefresh, final Promise promise) {
     FirebaseApp firebaseApp = FirebaseApp.getInstance(appName);

ios/RNFirebase/auth/RNFirebaseAuth.m

@@ -445,6 +445,48 @@ RCT_EXPORT_METHOD(updatePassword:
     }
 }
 
+
+/**
+ updatePhoneNumber
+
+ @param NSString password
+ @param NSString provider
+ @param NSString authToken
+ @param NSString authSecret
+ @param RCTPromiseResolveBlock resolve
+ @param RCTPromiseRejectBlock reject
+ @return
+ */
+RCT_EXPORT_METHOD(updatePhoneNumber:(NSString *) appDisplayName
+                  provider:(NSString *) provider
+                  token:(NSString *) authToken
+                  secret:(NSString *) authSecret
+                  resolver:(RCTPromiseResolveBlock) resolve
+                  rejecter:(RCTPromiseRejectBlock) reject) {
+    FIRApp *firApp = [RNFirebaseUtil getApp:appDisplayName];
+
+    FIRUser *user = [FIRAuth authWithApp:firApp].currentUser;
+
+    if (user) {
+        FIRAuthCredential *credential = [self getCredentialForProvider:provider token:authToken secret:authSecret];
+
+        if (credential == nil) {
+            return reject(@"auth/invalid-credential", @"The supplied auth credential is malformed, has expired or is not currently supported.", nil);
+        }
+
+        [user updatePhoneNumberCredential:credential completion:^(NSError *_Nullable error) {
+            if (error) {
+                [self promiseRejectAuthException:reject error:error];
+            } else {
+                FIRUser *userAfterUpdate = [FIRAuth authWithApp:firApp].currentUser;
+                [self promiseWithUser:resolve rejecter:reject user:userAfterUpdate];
+            }
+        }];
+    } else {
+        [self promiseNoUser:resolve rejecter:reject isError:YES];
+    }
+}
+
 /**
  updateProfile
 

src/modules/auth/User.js

@@ -250,6 +250,24 @@ export default class User {
       });
   }
 
+  /**
+   * Update the current user's phone number
+   *
+   * @param  {AuthCredential} credential Auth credential with the _new_ phone number
+   * @return {Promise}
+   */
+  updatePhoneNumber(credential: AuthCredential): Promise<void> {
+    return getNativeModule(this._auth)
+      .updatePhoneNumber(
+        credential.providerId,
+        credential.token,
+        credential.secret
+      )
+      .then(user => {
+        this._auth._setUser(user);
+      });
+  }
+
   /**
    * Update the current user's profile
    * @param  {Object} updates An object containing the keys listed [here](https://firebase.google.com/docs/auth/ios/manage-users#update_a_users_profile)
@@ -318,15 +336,6 @@ export default class User {
     );
   }
 
-  updatePhoneNumber() {
-    throw new Error(
-      INTERNALS.STRINGS.ERROR_UNSUPPORTED_CLASS_METHOD(
-        'User',
-        'updatePhoneNumber'
-      )
-    );
-  }
-
   get refreshToken(): string {
     throw new Error(
       INTERNALS.STRINGS.ERROR_UNSUPPORTED_CLASS_PROPERTY('User', 'refreshToken')

tests/e2e/auth/user.e2e.js

@@ -461,18 +461,6 @@ describe('auth().currentUser', () => {
     });
   });
 
-  describe('updatePhoneNumber()', () => {
-    it('should throw an unsupported error', async () => {
-      await firebase.auth().signInAnonymouslyAndRetrieveData();
-      (() => {
-        firebase.auth().currentUser.updatePhoneNumber();
-      }).should.throw(
-        'User.updatePhoneNumber() is unsupported by the native Firebase SDKs.'
-      );
-      await firebase.auth().signOut();
-    });
-  });
-
   describe('refreshToken', () => {
     it('should throw an unsupported error', async () => {
       await firebase.auth().signInAnonymouslyAndRetrieveData();