# koa2-simple-proxy

**Repository Path**: shendeganjue/koa2-simple-proxy

## Basic Information

- **Project Name**: koa2-simple-proxy
- **Description**: :zap: The one-liner node.js http-proxy middleware for koa2
- **Primary Language**: JavaScript
- **License**: MIT
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2020-07-11
- **Last Updated**: 2021-11-03

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# koa2-simple-proxy

> Note: that `koa2-simple-proxy` supports for koa2
> Note: 对http-proxy的简易封装，支持koa2

<br/>

# Features

## Framework
* Node >= 7.6
* Koa >= 2.0

<br/>

# Usage

```bash
$ cnpm install koa2-simple-proxy --save
```

<br/>

# Development

> Note: if you use [`/api` and `/api2`] as prefixes, the `/api2` should be in front of the `/api`

```bash

const Koa = require('koa');
const proxy = require('koa2-simple-proxy');
const app = new Koa();

// x-response-time
app.use(async(ctx, next) => {
  const start = Date.now();
  await next();
  const ms = Date.now() - start;
  ctx.set('X-Response-Time', `${ms}ms`);
});

// logger
app.use(async(ctx, next) => {
  const start = Date.now();
  await next();
  const ms = Date.now() - start;
  console.log(`${ctx.method} ${ctx.url} - ${ms}`);
});

// proxy
app.use(proxy('/rest', 'http://192.168.1.240/api2'));
app.use(proxy(['/api2', '/api'], 'http://192.168.1.240/api2'));
app.use(proxy('/api3', 'http://192.168.1.240/api2', {
  events: {
    error(err, req, res) {
      res.writeHead(500, err.message, {
        'Content-Type': 'application/json'
      });
      res.end(JSON.stringify(Object.assign({}, err, {
        message: err.message, // 有时候message字段不能被输出
        url: req.url
      })));
    }
  }
}));

// response
app.use(async ctx => {
  ctx.body = 'Hello World';
});

app.listen(9527, () => {
  console.log(`Listening on 9527`);
});

```