Geo points exercise 

This is a sample for a Domain Driven Design (DDD) approach of a simple business problem. Written in TypeScript for an Express server with Node.js.

Summary

Possible Improvements

Layers 

Run the application 

Request samples 

Possible Improvements

• Using a Node.js framework to allow built-in dependency injection and a better separation of concerns based on “depend on abstractions not implementation” principle. Note that I use Interfaces for Infrastructure layer.

• Using a Node.js framework to allow built-in routing capabilities. 

• Improve error handling. 

Layers 

• API
• Application
• Domain
• Infrastructure
• Helpers

Run the application 

• Clone git repo

• Run npm i

• Run npm build

• Run npm start

Request samples 

• POST - /api/pointsOfInterest

{
   "username": "boris",
   "company" : "PHYSARO",
   "coordinates" : {
       "latitude" : 2,
       "longitude" : 10
   }
}

• POST - /api/getDistance

[
    {
    "username": "boris",
    "company" : "PHYSARO",
    "coordinates" : {
        "latitude" : -44.2321,
        "longitude" : 101.21312312
        }
    },
    {
    "username": "boris",
    "company" : "PHYSARO",
    "coordinates" : {
        "latitude" : 78.12312312,
        "longitude" : 10.123123
        }
    }
]