Londor - Tiny and Neat Express

Londor is a nice little service based framework on top of express. It's 2 core values

• Decrease Abstractions
• Increase Readability
• It doesn't hide anything from express

Getting Started

1. You'll need Node 6.10.x or higher
2. We highly recommmend using TypeScript 2.5.1 or higher
3. Your tsconfig.json file will need:
   • to target es6
   • use commonjs
   • set experimentalDecorators to true
   • set emitDecoratorMetadata to true
4. Run npm install londor --save

It should look something like below.

{
  "compilerOptions": {
    "target": "es6",
    "module": "commonjs",
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,
  },
  "exclude": [
    "node_modules"
  ]
}

Examples

A simple server

import { Server } from 'londor'

const server = new Server({
  port: 4000
})

server.start()
  .then(() => {
    console.log("The server is started on port 4000!")
  })
  .catch((err) => {
    console.error(err)
  })

Adding a service

A service is just a class that you can add to a Server instance.

• You can expose methods as http endpoints using @Get, @Post, @Put, @Delete etc...
• You can read parameters using the @Param('carId') or just @Param decorator
• Services don't need http endpoints at all

import { Server, Get, Post, Put, Delete, BaseRoute, Body } from 'londor'

@BaseRoute('/cars')
class CarService {

  cars = [{
      carId: 1,
      name: 'toyota',
    }, {
      carId: 2,
      name: 'ford',
    }]

  @Get('/all')
  getAllCars(){
    return this.cars
  }

  @Post('/')
  async addNewCar(@Body body: any) {
    this.cars.push(body.car)
    return body
  }

  @Put('/:carId')
  async updateCar(@Body body: any) {
    this.cars.push(body.car)
    return body
  }

  @Delete('/:carId')
  async deleteCar(@Param carId: string) {
    for(let car of this.cars) {
      if (car.carId === carId) {
        this.cars.splice(this.cars.indexOf(car), 1)
      }
    }
  }

}
const server = new Server({
  port: 4000
})

server.addService(new CarService())

server.start()
  .then(() => {
    console.log("The server is started on port 4000!")
  })
  .catch((err) => {
    console.error(err)
  })

Using Express Middlewares

The server can easily attach express middlewares. Simply use the familiar use functionality

import * as cors from 'cors'
server.use(cors())

Express Middlewares in Services

You can add additional middlewares before

import { Get, UseMiddleware } from 'londor'

Serving Static Files

Serving Static Files is super easy with @ServeStatic

• The first parameter is the route of the static file
• The second parameter is the path to file to serve.

This is simply a wrapper around express.static API

import { ServeStatic, BaseRoute } from 'londor'
@BaseRoute('/dashboard')
@ServeStatic('/', 'path/to/index.html') 
@ServeStatic('/admin', 'path/to/admin.html') 
class DashboardService {
  // .. more implementation goes here
}
server.addService(new DashboardService())
server.start()
  .then(() => {
    console.log("The server is started on port 4000!")
    console.log("The dashboard is at http://localhost:4000/dashboard")
    console.log("The admin panel is at http://localhost:4000/dashboard/admin")
  })
  .catch((err) => {
    console.error(err)
  })

Contributing

After npm install

1. To Build npm run build
2. To Clean Artifacts npm run clean
3. To Test npm run test
4. To Lint npm run lint
5. To Buld and Watch when you make changes npm run watch

Debugging with Visual Studio Code

1. Set a breakpoint in your code ending in .ts or your test ending in .spec.ts
2. Run Either Launch Program or Launch Tests in the debug pane.
3. Run Either Launch Program or Launch Tests in the debug pane.