AWS Cognito and Android example - {“AppCognitoWebDomain”:“invalid”}

Question

Learning Cognito using the Android sample. As far as I can tell I have followed the example on the read me page here except for one thing... There is a section that I do not understand:

<intent-filter>
      <action android:name="android.intent.action.VIEW" />
      <category android:name="android.intent.category.DEFAULT" />
      <category android:name="android.intent.category.BROWSABLE" />
      <data android:host="YOUR_REDIRECT_URI_AUTHORITY"android:scheme="YOUR_REDIRECT_SCHEME"/>
</intent-filter>

What is the line:

android:host="YOUR_REDIRECT_URI_AUTHORITY"android:scheme="YOUR_REDIRECT_SCHEME"

The error I am getting in Android Studio is:

11-23 21:48:52.860 12915-12915/com.amazonaws.cognito.android.samples.authdemo E/AndroidRuntime: FATAL EXCEPTION: main Process: com.amazonaws.cognito.android.samples.authdemo, PID: 12915 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.amazonaws.cognito.android.samples.authdemo/com.amazonaws.cognito.android.samples.authdemo.MainActivity}: com.amazonaws.mobileconnectors.cognitoauth.exceptions.AuthInvalidParameterException: validation failed at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) at android.app.ActivityThread.-wrap11(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) Caused by: com.amazonaws.mobileconnectors.cognitoauth.exceptions.AuthInvalidParameterException: validation failed at com.amazonaws.mobileconnectors.cognitoauth.Auth$Builder.validateCognitoAuthParameters(Auth.java:341) at com.amazonaws.mobileconnectors.cognitoauth.Auth$Builder.build(Auth.java:288) at com.amazonaws.cognito.android.samples.authdemo.MainActivity.initCognito(MainActivity.java:121) at com.amazonaws.cognito.android.samples.authdemo.MainActivity.onCreate(MainActivity.java:48) at android.app.Activity.performCreate(Activity.java:6237) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) at android.app.ActivityThread.-wrap11(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) Caused by: com.amazonaws.mobileconnectors.cognitoauth.exceptions.AuthInvalidParameterException: {"AppCognitoWebDomain":"invalid"} at com.amazonaws.mobileconnectors.cognitoauth.Auth$Builder.validateCognitoAuthParameters(Auth.java:338) at com.amazonaws.mobileconnectors.cognitoauth.Auth$Builder.build(Auth.java:288) at com.amazonaws.cognito.android.samples.authdemo.MainActivity.initCognito(MainActivity.java:121) at com.amazonaws.cognito.android.samples.authdemo.MainActivity.onCreate(MainActivity.java:48) at android.app.Activity.performCreate(Activity.java:6237) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) at android.app.ActivityThread.-wrap11(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

agent420 agent420 · Accepted Answer · 2017-11-29T13:33:12

The host & scheme in intent filter data specify the Cognito app client's redirect URI. For details about data, see this. As for what do you configure in your app, see this example. So, if you use this example as your data then you would need to set your redirect_uri in Cognito Userpool console as demoapp://www.loginactivity.com/mainactivity. As for webdomain, you need to setup your Userpool domain in strings.xml.

AWS Cognito and Android example - {“AppCognitoWebDomain”:“invalid”}

1 Answers