Day 33: Create a Lambda Function

Welcome back to Day 33. Today we will learn how to create a lambda function from AWS management console.

What is Lambda function?

An AWS Lambda function is a serverless compute service that lets you run code without provisioning or managing servers. You just write the code, upload it, and AWS runs it automatically in response to events.

Key characteristics

🧠 Serverless

• No EC2, no OS management

• AWS handles scaling, patching, availability

⚡ Event-driven

Lambda runs when an event happens, such as:

• HTTP request (via API Gateway)

• File upload to S3

• Message in SQS

• Database change in DynamoDB

• Scheduled time (cron via EventBridge)

💰 Pay-per-use

You pay for:

• Number of requests

• Execution time (milliseconds)

• Memory allocated

Supported languages

AWS Lambda supports:

• Node.js

• Python

• Java

• Go

• .NET

• Ruby

• Custom runtimes (via Docker container)

Congratulations you did it. It looks good. This lab was successfully completed without any errors. See you in day 34. If you have any issues please let me know I will be happy to assist you. Stay tuned and learn together. If you find my article useful, please kindly like and share it.