import * as Koa from 'koa';
import { interfaces, Controller, Get, Post, Delete } from 'inversify-koa-utils';
import { injectable, inject } from 'inversify';

@controller('/foo')
@injectable()
export class FooController implements interfaces.Controller {

    constructor( @inject('FooService') private fooService: FooService ) {}

    @httpGet('/')
    private index(ctx: Router.IRouterContext , next: () => Promise<any>): string {
        return this.fooService.get(ctx.query.id);
    }

    @httpGet('/basickoacascading')
    private koacascadingA(ctx: Router.IRouterContext, nextFunc: () => Promise<any>): string {
        const start = new Date();
        await nextFunc();
        const ms = new Date().valueOf() - start.valueOf();
        ctx.set("X-Response-Time", `${ms}ms`);
    }

    @httpGet('/basickoacascading')
    private koacascadingB(ctx: Router.IRouterContext , next: () => Promise<any>): string {
        ctx.body = "Hello World";
    }

    @httpGet('/')
    private list(@queryParams('start') start: number, @queryParams('count') cound: number): string {
        return this.fooService.get(start, count);
    }

    @httpPost('/')
    private async create(@response() res: Koa.Response) {
        try {
            await this.fooService.create(req.body)
            res.body = 201
        } catch (err) {
            res.status = 400 
            res.body = { error: err.message }
        }
    }

    @httpDelete('/:id')
    private delete(@requestParam("id") id: string, @response() res: Koa.Response): Promise<void> {
        return this.fooService.delete(id)
            .then(() => res.body = 204)
            .catch((err) => {
                res.status = 400
                res.body = { error: err.message }
            })
    }
}

import * as bodyParser from 'koa-bodyparser';

import { Container } from 'inversify';
import { interfaces, InversifyKoaServer, TYPE } from 'inversify-koa-utils';

// set up container
let container = new Container();

// note that you *must* bind your controllers to Controller
container.bind<interfaces.Controller>(TYPE.Controller).to(FooController).whenTargetNamed('FooController');
container.bind<FooService>('FooService').to(FooService);

// create server
let server = new InversifyKoaServer(container);
server.setConfig((app) => {
  // add body parser
  app.use(bodyParser());
});

let app = server.build();
app.listen(3000);

import * as morgan from 'koa-morgan';
// ...
let server = new InversifyKoaServer(container);

server.setConfig((app) => {
    var logger = morgan('combined')
    app.use(logger);
});

let server = new InversifyKoaServer(container);
server.setErrorConfig((app) => {
    app.use((ctx, next) => {
        console.error(err.stack);
        ctx.status = 500
        ctx.body = 'Something broke!';
    });
});

// ...
let server = new InversifyKoaServer(container);
server
    .setConfig(configFn)
    .setErrorConfig(errorConfigFn)
    .build()
    .listen(3000, 'localhost', callback);

import * as Router from 'koa-router';

let container = new Container();

let router = new Router({
    prefix: '/api',
});

let server = new InversifyKoaServer(container, router);

let container = new Container();

let server = new InversifyKoaServer(container, null, { rootPath: "/api/v1" });

let container = new Container();

let app = new Koa();
//Do stuff with app

let server = new InversifyKoaServer(container, null, null, app);