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AWS for Backend Developers (EC2, S3, RDS, Lambda) · Lesson

Building Your First Lambda Function

Write and deploy a simple Lambda function, configuring its runtime, memory, and execution role.

Your First Lambda Function

Time to build your first serverless function! In this lesson, we'll write a simple AWS Lambda function that runs your code without managing servers.

We'll cover its basic structure, how to choose a runtime, and essential configurations like memory and execution roles. Get ready to deploy!

The Core: Your Lambda Handler

Every Lambda function needs a 'handler' function. This is the entry point where AWS Lambda starts executing your code. It typically receives two arguments:

  • event: Contains the data that triggered the invocation.
  • context: Provides runtime information about the invocation, function, and execution environment.

Think of the handler as the 'main' method for your serverless code.

All lessons in this course

  1. What is AWS Lambda?
  2. Building Your First Lambda Function
  3. Lambda Triggers and Integrations
  4. Monitoring and Debugging Lambda Functions
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