@fastcar/koa NPM

基于封装koa的web成型框架

快速安装

npm install @fastcar/koa

基本原理

采用@fastcar/core框架，然后将koa包装成一个基础组件进行调用
加载顺序为优先加载自定义中间件->加载自定义路由->启动http服务进行监听
停止阶段延迟一秒左右将server进行关闭

如何使用

import { FastCarApplication } from "@fastcar/core";
import { Application } from "@fastcar/core/annotation";
import { EnableKoa } from "@fastcar/koa/annotation";

@Application //注入基础框架
@EnableKoa //开启koa
class APP {
 app!: FastCarApplication;
}

export const app = new APP();

添加一个路由访问

import { Controller } from "@fastcar/core/annotation";
import { GET } from "@fastcar/koa/annotation";
import { Context } from "koa";


@Controller
export default class HelloController {

 @GET("/")
 home(params: string, ctx: Context) {
  console.log("这边请注意 params是params和body二合一的参数 重名的值会优先取body的");
  console.log('body取 ctx.request.body');
  console.log('路径后参数取ctx.params');
  return "hello world";
 }
}

如何引用koa中间件

//自定义中间件
//默认会出传入 app: FastCarApplication 可供选择
function Example(): koa.Middleware {
    return async (ctx: koa.Context, next: Function) => {
        console.log("example--- in");
        await next();
        console.log("example--- out");
    };
}

//在主入口内添加
import { FastCarApplication } from "@fastcar/core";
import { Application } from "@fastcar/core/annotation";
import { EnableKoa } from "@fastcar/koa/annotation";

@Application //注入基础框架
@EnableKoa //开启koa
@KoaMiddleware(Example)
class APP {
 app!: FastCarApplication;
}

export const app = new APP();