Getting Started with AWS Lambda: Your Step-by-Step Guide to Serverless Success


Fulminous Software

Last Updated on: 02 February 2024

Aws Lambda: QuickStart

What Is Aws lambda?

  • AWS Lambda is a serverless computing service provided by Amazon web services.

  • With Aws Lambda, you can build and deploy serverless application.

  • It allows you to run code in response to various events without the need to manage servers or infrastructure.

When to use Lambda?

  • File Processing.

  • Stream Processing.

  • Web Applications.

  • IoT backend.

  • Mobile backends.


  • AWS Account.

  • Access to AWS.

  • AWS CLI or SDK.

Installation Guide (For Nodejs Only)

You will need to install AWS SDK for any programming language that run for the Aws lambda Console

1.npm install aws-sdk

2.Use AWS SDK Mock in Your Tests:npm i aws-sdk-mock

3.Install some node libraries as per your required project

Programming languages that supports Aws lambda

  • JAVA

  • Go

  • Node js

  • C#

  • Ruby code

  • Python

Preferences over other aws services

  • Pay-as-you-Go-pricing

  • Auto scaling

  • Built in triggers

  • Managed services

  • Microservices

  • Quick deployment

  • Event-driven-architecture

Building a lambda function Using Node Js

npm init -y

2.Install the Aws SDK for Javascript

npm i aws-sdk

3.Install the Aws-sdk-mock for Javascript

npm i aws-sdk-mock

4.Create a function handler(eg.mylemdafunction.js) fulminous AWS Lambda blog

5.Create a test file (e.g., test.js) to mock and test your Lambda function fulminous AWS Lambda blog NOTE.Please install chai assertion library using

npm i chai

6.To Run your tests use Mocha

npx mocha test.js

7.Output Console

Lambda Function
✔ should return a successful response
1 passing (11ms)

Benefits of using Node.js for AWS Lambda functions

  • Performance

  • Scalability

  • Ease of use

  • Community support

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