The adapter for the migration from express to koa

If you have search the two framework on npm, you will get 16k+ (express) and 4k+ (koa). express has a bigger ecosystem than koa, This package will let you use express middleware in koa application.

Badges

Usage

You can simply wrap express middleware with wrap function.

const { wrap } = require('koa-express-adapter');
const Koa = require('koa');
const app = new Koa();
// wrap express middleware
app.use(wrap(function(req, res) {
  res.send('Hello World');
}));

Note: Don't define next argument when you don't use it.

// it's wrong
app.use(wrap(function(req, res, next) {
  res.send('Hello World');
}));

Express API

Request

• [x] accepts
• [x] acceptsCharset
• [x] acceptsCharsets
• [x] acceptsEncoding
• [x] acceptsEncodings
• [x] acceptsLanguage
• [x] acceptsLanguages
• [ ] baseUrl
• [ ] fresh
• [x] get
• [x] hostname
• [x] host
• [x] ip
• [x] ips
• [x] is
• [ ] param
• [x] path
• [x] protocol
• [x] query
• [ ] range
• [ ] route
• [ ] secure
• [ ] signedCookies
• [ ] stale
• [ ] subdomains
• [ ] xhr

Response

• [ ] append
• [x] attachment
• [x] clearCookie
• [x] cookie
• [ ] download
• [ ] format
• [x] get
• [x] json
• [ ] jsonp
• [ ] links
• [x] locals
• [x] location
• [x] redirect
• [ ] render
• [x] send
• [ ] sendFile
• [x] sendStatus
• [x] set
• [x] status
• [x] type
• [x] vary

Testcase

Thanks for express testcase for compatible unittest.

License

(The MIT License)