How To Build Your First Serverless API with AWS Lambda and API Gateway

An in-depth tutorial

Hi there. My name’s Andrew and I’m a JavaScript developer based in London.

In this piece I’ll be guiding you through the process of building a Serverless API on AWS.

I have written up a more complex follow up article here that would be an excellent next step once you have read this one.

Technologies Used

The technologies used in this guide are:

• AWS Lambda (https://aws.amazon.com/lambda/) for running code without provisioning servers
• AWS API Gateway (https://aws.amazon.com/api-gateway/) for Serverless API creation & management

Prerequisites

• An AWS account (https://portal.aws.amazon.com/billing/signup#/start)
• Some JavaScript experience

Creating Your First Lambda Function

Login to the AWS console and navigate to the Lambda service: