A Lambda skeleton

When you implement a Lambda function via Python, you need to follow some rules in order to execute the application. When a Lambda function is run, it calls the handler method, which is shown with the following syntax:

def lambda_handler(event, context):
    ...
    return some_value

As you see, the first parameter is the event object. An event object consists of JSON in order to process data as a parameter. You can see a sample parameter here:

{
  "Temperature": 10,
  "Wind": -5
}

The second parameter shows information about the Lambda runtime. You can see some of the runtime fields here:

• function_name (the name of the function)
• function_version (the version of the function)
• memory_limit_in_mb (the Lambda function memory limit)

We've looked at the main skeleton of the Python Lambda function. In the next section, we'll see how to return a value...