feat(auth): use native method to andle isSignInWithEmailLink

Author: Willham12

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

@@ -402,6 +402,20 @@ private void createUserWithEmailAndPassword(
             });
   }
 
+  /**
+   * isSignInWithEmailLink
+   *
+   * @param email
+   * @param promise
+   */
+  @ReactMethod
+  public void isSignInWithEmailLink(String appName, String emailLink, final Promise promise) {
+    Log.d(TAG, "isSignInWithEmailLink");
+    FirebaseApp firebaseApp = FirebaseApp.getInstance(appName);
+    FirebaseAuth firebaseAuth = FirebaseAuth.getInstance(firebaseApp);
+    promise.resolve(firebaseAuth.isSignInWithEmailLink(emailLink));
+  }
+
   /**
    * signInWithEmailAndPassword
    *

packages/auth/ios/RNFBAuth/RNFBAuthModule.m

@@ -254,6 +254,14 @@ - (void)invalidate {
            }];
 }
 
+RCT_EXPORT_METHOD(isSignInWithEmailLink
+                  : (FIRApp *)firebaseApp
+                  : (NSString *)emailLink
+                  : (RCTPromiseResolveBlock)resolve
+                  : (RCTPromiseRejectBlock)reject) {
+    resolve(@([RCTConvert BOOL:@([[FIRAuth authWithApp:firebaseApp] isSignInWithEmailLink:emailLink])]));
+}
+
 RCT_EXPORT_METHOD(signInWithEmailLink
                   : (FIRApp *)firebaseApp
                   : (NSString *)email

packages/auth/lib/index.d.ts

@@ -2013,7 +2013,7 @@ export namespace FirebaseAuthTypes {
      * #### Example
      *
      * ```js
-     * const signedInWithLink = firebase.auth().isSignInWithEmailLink(link);
+     * const signedInWithLink = await firebase.auth().isSignInWithEmailLink(link);
      * ```
      *
      * @param emailLink The email link to check whether the user signed in with it.

packages/auth/lib/index.js

@@ -361,11 +361,7 @@ class FirebaseAuthModule extends FirebaseModule {
   }
 
   isSignInWithEmailLink(emailLink) {
-    return (
-      typeof emailLink === 'string' &&
-      (emailLink.includes('mode=signIn') || emailLink.includes('mode%3DsignIn')) &&
-      (emailLink.includes('oobCode=') || emailLink.includes('oobCode%3D'))
-    );
+    return this.native.isSignInWithEmailLink(emailLink);
   }
 
   signInWithEmailLink(email, emailLink) {

packages/auth/lib/modular/index.d.ts

@@ -161,9 +161,9 @@ export function getRedirectResult(
  *
  * @param auth - The Auth instance.
  * @param emailLink - The email link to check.
- * @returns True if the link is a sign-in with email link.
+ * @returns A promise that resolves if the link is a sign-in with email link.
  */
-export function isSignInWithEmailLink(auth: Auth, emailLink: string): boolean;
+export function isSignInWithEmailLink(auth: Auth, emailLink: string): Promise<boolean>;
 
 /**
  * Adds an observer for changes to the user's sign-in state.

packages/auth/lib/modular/index.js

@@ -161,7 +161,7 @@ export async function getRedirectResult(auth, resolver) {
  * Checks if an incoming link is a sign-in with email link suitable for signInWithEmailLink().
  * @param {Auth} auth - The Auth instance.
  * @param {string} emailLink - The email link to check.
- * @returns {boolean}
+ * @returns {Promise<boolean>}
  */
 export function isSignInWithEmailLink(auth, emailLink) {
   return auth.isSignInWithEmailLink(emailLink);