How to Invoking AWS Lambda functions from Android Studio

 How to Invoking AWS Lambda functions using Android Studio

To invoke an AWS Lambda function from an Android app using Kotlin, you can use the AWS SDK for Android.

Step 1:- Adding the following dependency to your app's build.gradle file:

dependencies {
    implementation 'com.amazonaws:aws-android-sdk-core:2.16.+'
    implementation 'com.amazonaws:aws-android-sdk-lambda:2.16.+'
}

Step 2 :- Now, you need to configure the AWS SDK with your AWS access keys. You can do this by creating a file called awsconfiguration.json in the app/src/main/res/raw directory of your project, and adding the following contents to it:

{
  "IdentityManager": {
    "Default": {}
  },
  "CredentialsProvider": {
    "CognitoIdentity": {
      "Default": {
        "PoolId": "<your_cognito_identity_pool_id>",
        "Region": "<your_region>"
      }
    }
  },
  "Lambda": {
    "Default": {
      "Region": "<your_region>"
    }
  }
}

Step 3:- Replace <your_cognito_identity_pool_id> and <your_region> with your Cognito identity pool ID and the region where your Lambda function is located, respectively.

With the AWS SDK configured, you can now invoke your Lambda function by using the AWSLambdaClient and InvokeRequest classes:

val lambdaClient = AWSLambdaClient(context)
val request = InvokeRequest()
    .withFunctionName("<your_function_name>")
    .withPayload(<your_request_payload>)
val response = lambdaClient.invoke(request)

Step 4:- Replace <your_function_name> with the name of your Lambda function, and <your_request_payload> with the payload that you want to send to your lambda function. The response variable will contain the output of your function.

I hope this helps! Let me know if you have any questions.