Node Flask

Node implementation flask like server framework. With the introduction of function decorators and classes we are able to make a small and easy to implement routing system. This is build on koa2 for their support of es2016 functionality and because of its small foot print when compared to express. I am using koa@2 because all routes are handled though blueprint classes and passing a context to a function as a parameter and allowing this to still refer to the blueprint helps class logic. Even though we are using koa@2 you do not have to run you code though a compiler such as babel (though this step makes function decorators posible).

API

Server() => Server

Main server to run blueprint classes. Extends Koa Class from koa@2.

Option	type	description
port	Number	Http port to listen on
blueprints	`Object	Array

Example

const { Server } = require("node-flask")
const MainRoutes = require("./MainRoutes")
const server = new Server({
  port: 5000,
  blueprints: [MainRoutes],
})
server.start()

Server#start() => Promise

Run server from configuration Example

const server = // ...from example above
server.start()
.then(() => console.log("Server online on port 5000"))
.catch(err => console.error(`An error occurred (such as port in use)`, err.stack))

#prefix(prefix: string, ...middleware: fn) => decorator

Class decorator for blueprint class level configuration.

#all(path: string, ...middleware: fn) => decorator

Handle all http requests on path.

#get(path: string, ...middleware: fn) => decorator

Handle all GET http requests on path.

#post(path: string, ...middleware: fn) => decorator

Handle all POST http requests on path.

#put(path: string, ...middleware: fn) => decorator

Handle all PUT http requests on path.

#patch(path: string, ...middleware: fn) => decorator

Handle all PATCH http requests on path.

#del(path: string, ...middleware: fn) => decorator

Handle all DELETE http requests on path.

Example (babel w/ transform-legacy-decorators)

const flask = require("node-flask")

@flask.prefix("/main", middlewarefunction)
class MainRoutes {

  @flask.get("/home")
  async home(ctx) {
    const data = await getData()
    ctx.body = data
  }
}

Example (node6)

const flask = require("node-flask")

class MainRoutes {
  constructor() {
    this.prefix = "/main"
    this.routes = flask.registerRoutes(this, {
      home: flask.get("/home"),
    })
  }

  *home(ctx) {
    const data = yield getData()
    ctx.body = data
  }
}

TODO:

• Write more tests for Server
• Add helpful middleware and more decorators upon need

Contributions:

Feedback, use cases and code is all appreciated. Simply make an issue or pull request on the github repo.