android-sample | a ) Install Android Studio : https : //developer | Android library

I just solved it. For all those who encounter this problem: from the Google API console, remove the consent screen from the test state and publish it.

You need to send the authorization header. You can see how in the following question: How to send Authorization header in Android using Volley library?

The part are you need to add is the generation header:

JSONArray booksArray = new JSONArray("items");

This makes a new, empty json array object, and then creates a new variable named booksArray, and then sets that variable to be a reference to this newly created object, which is an empty array.

This is not how you fetch that items array in the JSONObject you have. You're looking for something like books.get("items").

More generally, that json library is deplorably bad; use something like GSON or Jackson instead.

The issue seems to be related to poor handling of HttpURLConnection object. There are issues in the downloadUrl() method implementation in the class DownloadWebpageTask, which may be relevant to the queries 1-3, the variable responseCode is never used.

If the response is not HttpURLConnection.HTTP_OK , try reconnecting ( or till a custom timeout) or return a null string. On slow internet or bad connection, the response will not be HttpURLConnection.HTTP_OK, hence trying to reference the json-object may lead to undefined behavior.

Yes, you can use the AWS IoT SDK for Android. The AWS IoT SDK uses MQTT as its messaging transport. An example use is here. The source code is here. Here is the artifact in maven.

The second argument to the KinesisVideoAndroidClientFactory is a generic AWSCredentialsProvider.

The AWSMobileClient, which provides authentication via Cognito, is one example of an AWSCredentialsProvider.

However, there are other implementations of the AWSCredentialsProvider. One of the simplest possible solutions is to use a StaticCredentialsProvider, to provide some BasicAWSCredentials.

In Kotlin:

Short answer, Yes, it is possible. To do that you should do the following:

• Create Cognito user pool. User Pool ID and App client id will be used in the next step. You can find more information here.

• Create Cognito Identity pool. Under Authentication Providers you should give User Pool ID and App client id, more information here. When you create this, it will create two Roles for Authenticated and Unauthenticated users in IAM. You should add IoT access permissions (Connect, Publish, Subscribe and Receive) to those roles.

• On client side (your App), after choosing your preferred AWS SDK (Android, iOS, React, JS, etc.) and configuring User pool ID, Identity pool and App client ID you should first authenticate the user by sending the user information (usually Email/Username and Password) to the Cognito user pool. In return, you will get some tokens.

• Among those IdToken (JWT) will be sent to the Identity pool and in return you will get User Identity ID along with credentials (accessKeyId, secretAccessKey, sessionToken) needed to access AWS other services like IoT.

• Last step would be using aws-iot-sdk for your App along with those credentials to publish and subscribe to your IoT topics. You can find more information about aws-iot-sdk here.

I'm using an emulator, but the MSDK doesn't support it. It only works with a real device.

Just digged through Google and found a better page out here

They've mentioned a step by step implementation of this library. Also an example to refer for code information is here

Code to handle when connection is online: