Introducing AWS Lambda

AWS Lambda is one of the AWS services that provides a serverless compute to serve all the requests when executing your program. Currently, AWS Lambda for AWS Greengrass supports several program runtimes, such as Python, Node.js, and Java.

Implementing AWS Lambda into your IoT project can cut down on your infrastructure costs, especially, the cost of the server availability feature. You can focus on your problems and design your solution.

Note

For further information about AWS Lambda, I recommend that you read the official documentation from Amazon at http://docs.aws.amazon.com/lambda/latest/dg/welcome.html.

In this section, I will show you how to develop the AWS Lambda function and then invoke it. We will use the Python program to develop the AWS Lambda function and perform the following steps to implement our demo:

1. Creating the AWS Lambda function
2. Testing the AWS Lambda function
3. Publishing the AWS Lambda function
4. Configuring the AWS Lambda security
5. Invoking the AWS Lambda...