flutter_twitter_login Example returns error

Hi.

I cloned the example, changed nothing and ran it on genymotion. When tapping on "Log in" it opens the web browser and then goes back to the app with an error:

"Failed to get request token".

I have tried this with my twitter credentials as well, same error.

I also tried your plugin with Firebase & Flutter, and I got an error saying that no callback url was specified.

I know that with my React Native apps, I needed to specify a callback URL (using Firebase) on Twitter and then also update my android AndroidManifest.xml to support it.

So I am not sure if that's the case here or not?

Jun 19 '18 14:06 robert-stevens

@roughike

This seems to only happen when the device doesn't have the twitter app installed on it. If possible I would still like to solve this for users who would like to sign up using twitter although (for some odd reason they don't have twitter on their phone).

I have also tried un/locking the callback URL on Twitter. It doesn't make a difference unfortunately.

Any advice?

Jun 20 '18 08:06 robert-stevens

Is the problem only on Android? Could you attach flutter doctor output so I could try debug this later?

Jun 20 '18 09:06 roughike

I have only tried it on Android. I will try to make time later to test it on iOS.

Doctor:

[✓] Flutter (Channel beta, v0.4.4, on Mac OS X 10.13.5 17F77, locale en-ZA) • Flutter version 0.4.4 at /Users/user/flutter • Framework revision f9bb4289e9 (6 weeks ago), 2018-05-11 21:44:54 -0700 • Engine revision 06afdfe54e • Dart version 2.0.0-dev.54.0.flutter-46ab040e58

[✓] Android toolchain - develop for Android devices (Android SDK 27.0.3) • Android SDK at /Users/user/Library/Android/sdk • Android NDK at /Users/user/Library/Android/sdk/ndk-bundle • Platform android-27, build-tools 27.0.3 • ANDROID_HOME = /Users/user/Library/Android/sdk • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-915-b08) • All Android licenses accepted.

[✓] iOS toolchain - develop for iOS devices (Xcode 9.4) • Xcode at /Applications/Xcode.app/Contents/Developer • Xcode 9.4, Build version 9F1027a • ios-deploy 1.9.2 • CocoaPods version 1.5.3

[✓] Android Studio (version 3.0) • Android Studio at /Applications/Android Studio.app/Contents • Flutter plugin version 23.2.1 • Dart plugin version 171.4424 • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-915-b08)

[!] VS Code (version 1.24.1) • VS Code at /Applications/Visual Studio Code.app/Contents • Dart Code extension not installed; install from https://marketplace.visualstudio.com/items?itemName=Dart-Code.dart-code

[✓] Connected devices (1 available) • Samsung Galaxy S6, 6 0 0, API 23, 1440x2560 • 192.168.56.101:5555 • android-x86 • Android 6.0 (API 23)

Jun 20 '18 09:06 robert-stevens

Can confirm this issue, as well. Built and ran the example application, hitting the "Log In" button causes what looks like a WebView to pop up and then disappear, bringing the user back to the app's home screen.

Build warnings:

Initializing gradle...
Note: /Users/alex/Projects/flutter/flutter_twitter_login/android/src/main/java/com/roughike/fluttertwitterlogin/fluttertwitterlogin/TwitterLoginPlugin.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Built build/app/outputs/apk/debug/app-debug.apk.

Output from the debugger:

W/ActivityThread( 4102): handleWindowVisibility: no activity for token android.os.BinderProxy@6ac4c1b
D/EGL_emulation( 4102): eglMakeCurrent: 0xdbf6b2a0: ver 3 0 (tinfo 0xdbfd5f00)
E/Twitter ( 4102): Invalid json: <?xml version="1.0" encoding="UTF-8"?><errors><error code="415">Callback URL not approved for this client application. Approved callback URLs can be adjusted in your application settings</error></errors>
E/Twitter ( 4102): com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1 path $
E/Twitter ( 4102):      at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:224)
E/Twitter ( 4102):      at com.twitter.sdk.android.core.models.SafeListAdapter$1.read(SafeListAdapter.java:45)
E/Twitter ( 4102):      at com.twitter.sdk.android.core.models.SafeMapAdapter$1.read(SafeMapAdapter.java:45)
E/Twitter ( 4102):      at com.google.gson.Gson.fromJson(Gson.java:887)
E/Twitter ( 4102):      at com.google.gson.Gson.fromJson(Gson.java:852)
E/Twitter ( 4102):      at com.google.gson.Gson.fromJson(Gson.java:801)
E/Twitter ( 4102):      at com.google.gson.Gson.fromJson(Gson.java:773)
E/Twitter ( 4102):      at com.twitter.sdk.android.core.TwitterApiException.parseApiError(TwitterApiException.java:110)
E/Twitter ( 4102):      at com.twitter.sdk.android.core.TwitterApiException.readApiError(TwitterApiException.java:95)
E/Twitter ( 4102):      at com.twitter.sdk.android.core.TwitterApiException.<init>(TwitterApiException.java:43)
E/Twitter ( 4102):      at com.twitter.sdk.android.core.Callback.onResponse(Callback.java:42)
E/Twitter ( 4102):      at retrofit2.ExecutorCallAdapterFactory$ExecutorCallbackCall$1$1.run(ExecutorCallAdapterFactory.java:68)
E/Twitter ( 4102):      at android.os.Handler.handleCallback(Handler.java:873)
E/Twitter ( 4102):      at android.os.Handler.dispatchMessage(Handler.java:99)
E/Twitter ( 4102):      at android.os.Looper.loop(Looper.java:193)
E/Twitter ( 4102):      at android.app.ActivityThread.main(ActivityThread.java:6669)
E/Twitter ( 4102):      at java.lang.reflect.Method.invoke(Native Method)
E/Twitter ( 4102):      at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
E/Twitter ( 4102):      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
E/Twitter ( 4102): Caused by: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1 path $
E/Twitter ( 4102):      at com.google.gson.stream.JsonReader.beginObject(JsonReader.java:385)
E/Twitter ( 4102):      at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:213)
E/Twitter ( 4102):      ... 18 more
E/Twitter ( 4102): Failed to get request token
E/Twitter ( 4102): com.twitter.sdk.android.core.TwitterApiException: HTTP request failed, Status: 403
E/Twitter ( 4102):      at com.twitter.sdk.android.core.Callback.onResponse(Callback.java:42)
E/Twitter ( 4102):      at retrofit2.ExecutorCallAdapterFactory$ExecutorCallbackCall$1$1.run(ExecutorCallAdapterFactory.java:68)
E/Twitter ( 4102):      at android.os.Handler.handleCallback(Handler.java:873)
E/Twitter ( 4102):      at android.os.Handler.dispatchMessage(Handler.java:99)
E/Twitter ( 4102):      at android.os.Looper.loop(Looper.java:193)
E/Twitter ( 4102):      at android.app.ActivityThread.main(ActivityThread.java:6669)
E/Twitter ( 4102):      at java.lang.reflect.Method.invoke(Native Method)
E/Twitter ( 4102):      at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
E/Twitter ( 4102):      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
E/Twitter ( 4102): Authorization completed with an error
E/Twitter ( 4102): com.twitter.sdk.android.core.TwitterAuthException: Failed to get request token
E/Twitter ( 4102):      at com.twitter.sdk.android.core.identity.OAuthController$1.failure(OAuthController.java:94)
E/Twitter ( 4102):      at com.twitter.sdk.android.core.internal.oauth.OAuth1aService$1.failure(OAuth1aService.java:191)
E/Twitter ( 4102):      at com.twitter.sdk.android.core.Callback.onResponse(Callback.java:42)
E/Twitter ( 4102):      at retrofit2.ExecutorCallAdapterFactory$ExecutorCallbackCall$1$1.run(ExecutorCallAdapterFactory.java:68)
E/Twitter ( 4102):      at android.os.Handler.handleCallback(Handler.java:873)
E/Twitter ( 4102):      at android.os.Handler.dispatchMessage(Handler.java:99)
E/Twitter ( 4102):      at android.os.Looper.loop(Looper.java:193)
E/Twitter ( 4102):      at android.app.ActivityThread.main(ActivityThread.java:6669)
E/Twitter ( 4102):      at java.lang.reflect.Method.invoke(Native Method)
E/Twitter ( 4102):      at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
E/Twitter ( 4102):      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
I/FlutterActivityDelegate( 4102): onResume setting current activity to this
D/EGL_emulation( 4102): eglMakeCurrent: 0xdbf6b2a0: ver 3 0 (tinfo 0xdbfd5f00)

Flutter doctor:

$ flutter doctor -v
[✓] Flutter (Channel beta, v0.5.1, on Mac OS X 10.13.5 17F77, locale en-US)
    • Flutter version 0.5.1 at /Volumes/New/flutter
    • Framework revision c7ea3ca377 (6 weeks ago), 2018-05-29 21:07:33 +0200
    • Engine revision 1ed25ca7b7
    • Dart version 2.0.0-dev.58.0.flutter-f981f09760

[✓] Android toolchain - develop for Android devices (Android SDK 27.0.3)
    • Android SDK at /Users/alex/Library/Android/sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-27, build-tools 27.0.3
    • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b01)
    • All Android licenses accepted.

[✓] iOS toolchain - develop for iOS devices (Xcode 9.4.1)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 9.4.1, Build version 9F2000
    • ios-deploy 1.9.2
    • CocoaPods version 1.5.3

[✓] Android Studio (version 3.1)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin version 26.0.1
    • Dart plugin version 173.4700
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b01)

[!] VS Code (version 1.25.0)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension not installed; install from
      https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

[✓] Connected devices (1 available)
    • Android SDK built for x86 • emulator-5554 • android-x86 • Android 9 (API 28) (emulator)

edit: Can also confirm that this will work on a physical device if the user has Twitter installed and is logged in.

Jul 08 '18 19:07 alexdelorenzo

@roughike have you been able to spend time on this issue? Tx

Jul 09 '18 08:07 robert-stevens

@roughike do you plan to fix this issue? It's really annoying to have such issue where user can't use twitter account if the app is not installed.

Jul 17 '18 12:07 shadymostafa

I believe that this problem is realted to some changes made on the Twitter side and is not caused by this library. Read: https://twittercommunity.com/t/callback-url-not-approved-but-worked-for-months/107261 And: https://developer.twitter.com/en/docs/basics/developer-portal/guides/callback-urls.html

in short (for Android): Add "twittersdk://" to your Callback URLs inside the Settings Tab of your Twitter Application at apps.twitter.com

Aug 08 '18 14:08 KammererTob

Adding "twittersdk://" as a callback url worked for me. Thanks @KammererTob . I can run an emulator and use this plugin well.

Aug 12 '19 04:08 Fallenstedt

@Fallenstedt can you guide me exactly were to add "twittersdk://". I'm using firebase authentication with Twitter.

Mar 03 '20 17:03 surveshoeb

@surveshoeb You can add twittersdk:// to your callback urls in your application. Navigate to https://developer.twitter.com/en/apps to find your applications.