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-sns-publish-with-sdk-0.0.1-SNAPSHOT.jar 
    s3://serverless-cookbook/lambda-sns-publish-with-sdk-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-sns-publish-with-sdk-role 
    --assume-role-policy-document file://iam-role-trust-relationship.txt 
    --profile admin

Refer to the previous recipes or the code files for the trust relationship document file, iam-role-trust-relationship.txt.

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

The policy document with required SNS permissions is shown as follows:

{
   "Version":"2012-10-17",
   "Statement":[
      {
         "Effect":"Allow",
         "Action":[
            "sns:Publish"
         ],
         "Resource":[
            "arn:aws:sns:*:*:*"
         ]
      }
   ]
}

6. Create the Lambda function, as shown here:

aws lambda create-function 
    --function-name lambda-sns-publish-with-sdk 
    --runtime java8 
    --role arn:aws:iam::855923912133:role/lambda-sns-publish-with-sdk-role 
    --handler tech.heartin.books.serverlesscookbook.LambdaSnsPublishHandler::handleRequest 
    --code S3Bucket=serverless-cookbook,S3Key=lambda-sns-publish-with-sdk-0.0.1-SNAPSHOT.jar 
    --timeout 15 
    --memory-size 512 
    --region us-east-1 
    --profile admin

7. You can invoke the Lambda as follows:

aws lambda invoke 
    --invocation-type RequestResponse 
    --function-name lambda-sns-publish-with-sdk 
    --log-type Tail 
    --payload file://payload.json 
    --region us-east-1 
    --profile admin 
    outputfile.txt

The payload.json file has the following contents:

{
    "topicArn" : "arn:aws:sns:us-east-1:<account id>:my-first-sns-topic",
    "message": "test payload 1"
}

If successful, you will get notifications to the configured email and SMS.