AWS Serverless TypeScript Project

Overview

serverless | @middy/core. A simple Serverless API with Node.js and TypeScript, featuring a Lambda function to handle POST requests with basic data validation and logging using @middy/core

Features

• Use middy/core for middleware lambda.
• inputOutputLogger for logs input and outputs.
• httpJsonBodyParser for parse body.
• httpEventNormalizer for access the query string or path parameters in an API Gateway.
• validator for validate schema.
• httpErrorHandler for handles uncaught errors that contain the properties statusCode (number) and message (string) and creates a proper HTTP response for them.

Project structure

The project code base is mainly located within the src folder. This folder is divided in:

• handlers - containing code base and configuration for your lambda functions
• schema - containing schemas to validate lambda

.
├── src
│   ├── hanlders                # Lambda configuration and source code folder
│   │   ├── hello.ts            # `Hello` lambda source code
│   └── schema                  # schemas
│       └── hello.ts            # schema validate
│
├── package.json
├── serverless.ts               # Serverless service file
├── tsconfig.json               # Typescript compiler configuration
├── tsconfig.paths.json         # Typescript paths
└── webpack.config.js           # Webpack configuration

Prerequisites

• Node.js (version specified in package.json)
• AWS CLI, configured with appropriate access rights
• Serverless Framework

Setup and Deployment

1. Installation:

   npm install

2. Deploy to AWS:

   serverless deploy
   
   

Usage

Endpoint: The application exposes a POST endpoint at /hello. Functionality: Sending a POST request to this endpoint will trigger the hello Lambda function, which returns a simple greeting message.