Follow these steps to deploy and invoke the Lambda. You may follow Chapter 1, Getting Started with Serverless Computing on AWS and use CloudFormation for Lambda provisioning:

1. Run mvn clean package from inside the Lambda project root folder to create the Uber JAR.
2. Upload the Uber JAR to S3:

aws s3 cp 
    target/lambda-sqs-sdk-create-send-0.0.1-SNAPSHOT.jar 
    s3://serverless-cookbook/lambda-sqs-sdk-create-send-0.0.1-SNAPSHOT.jar 
    --profile admin

3. Create a role for the Lambda with an appropriate trust relationship definition:

aws iam create-role 
    --role-name lambda-sqs-create-send-role 
    --assume-role-policy-document file://iam-role-trust-relationship.txt 
    --profile admin

The trust document, iam-role-trust-relationship.txt, is defined as follows:

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Principal": {
        "Service": "lambda.amazonaws.com"
      },
      "Action": "sts:AssumeRole"
    }
  ]
}

4. Create a policy for basic logging permissions and attach it to the role.

Create the policy document as follows:

{
   "Version":"2012-10-17",
   "Statement":[
      {
         "Effect":"Allow",
         "Action":[
            "logs:CreateLogGroup",
            "logs:CreateLogStream",
            "logs:PutLogEvents"
         ],
         "Resource":[
            "arn:aws:logs:*:*:*"
         ]
      }
   ]
}

Save this file as basic-lambda-permissions.txt.

Create the policy as follows:

aws iam create-policy 
    --policy-name lambda-basic-iam-policy 
    --policy-document file://basic-lambda-permissions.txt 
    --profile admin

Attach the policy to the role as follows:

aws iam attach-role-policy 
 --role-name lambda-sqs-create-send-role 
 --policy-arn arn:aws:iam::855923912133:policy/lambda-basic-iam-policy 
 --profile admin

5. Create a policy for required SQS permissions, and attach it to the role.

Create the policy document with the required SQS permissions as follows:

{
   "Version":"2012-10-17",
   "Statement":[
      {
         "Effect":"Allow",
         "Action":[
            sqs:CreateQueue,
            sqs:GetQueueUrl,
            "sqs:SendMessage"
         ],
         "Resource":[
            "arn:aws:sqs:*:*:*"
         ]
      }
   ]
}

Save the file as lambda-sqs-create-send-permissions.txt.

Create the policy and attach it to the role, as we did in the previous step.

6. Create the Lambda function as follows:

aws lambda create-function 
    --function-name lambda-sqs-create-send 
    --runtime java8 
    --role arn:aws:iam::<account id>:role/lambda-sqs-create-send-role 
    --handler tech.heartin.books.serverlesscookbook.LambdaSqsSdkCreateSendHandler::handleRequest 
    --code S3Bucket=serverless-cookbook,S3Key=lambda-sqs-sdk-create-send-0.0.1-SNAPSHOT.jar 
    --timeout 15 

    --memory-size 512 
    --region us-east-1 
    --profile admin

7. Invoke the Lambda function as follows:

aws lambda invoke 
    --invocation-type RequestResponse 
    --function-name lambda-sqs-create-send 
    --log-type Tail 
    --payload file://payload.json 
    --region us-east-1 
    --profile admin 
    outputfile.txt

The payload file should correspond to our input domain object (Request.java) as follows:

{
    "queueName" : "create-send-demo-queue",
    "message": "test payload 1"
}

If the aws lambda invoke command is successful, you should see a success message in the output file, outputfile.txt (assuming you return a success message from the Lambda similar to the code files).

8. Verify the invocation by retrieving the message from the queue:

aws sqs receive-message 
    --queue-url https://queue.amazonaws.com/855923912133/create-send-demo-queue 
    --profile admin

If successful, you should get the following message back: