Now that we understand what infrastructure as code is, we are ready to create our first SST app.

Run the following in your working directory.

$ npx create-serverless-stack@latest notes
$ cd notes

By default our app will be deployed to an environment (or stage) called dev in the us-east-1 AWS region. This can be changed in the sst.json in your project root.

  "name": "notes",
  "stage": "dev",
  "region": "us-east-1",
  "lint": true

Project layout

An SST app is made up of two parts.

  1. lib/ — App Infrastructure

    The code that describes the infrastructure of your serverless app is placed in the lib/ directory of your project. SST uses AWS CDK, to create the infrastructure.

  2. src/ — App Code

    The Lambda function code that’s run when your API is invoked is placed in the src/ directory of your project.

Later on we’ll be adding a frontend/ directory for our frontend React app.

The starter project that’s created is defining a simple Hello World API. In the next chapter, we’ll be deploying it and running it locally.