Creating and deploying Lambda functions

Lambda functions only run when needed, which saves money and resources. They scale automatically, so the system can handle just one request or thousands at once.

They are also quick to set up and connect easily with other AWS services. This makes them ideal for building flexible and cost-efficient applications.

Before deploying a Lambda function, the local development environment must be prepared. This involves configuring the Go toolchain, setting up dependencies, and ensuring that the function code can be compiled for AWS’s runtime environment.

The following section explains how to set up the environment step by step to get ready for Lambda development.

Setting up the Go environment

To get started, let’s first initialize the Go module to set up the project environment:

mkdir url-shortener-lambda
cd url-shortener-lambda
go mod init github.com/<yourusername>/url-shortener-lambda

Let’s install...