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connect

(★ 9,880)

Connect is an extensible HTTP server framework for node using "plugins" known as middleware.

파일 탐색기

최종 버전 다운로드 (.zip)

- - ci.yml
- horizontal.png
- icon.png
- vertical.png
- - env.js
  - rawagent.js
- app.listen.js
- fqdn.js
- mounting.js
- server.js
.editorconfig
.eslintignore
.eslintrc.yml
.gitignore
HISTORY.md
index.js
LICENSE
package.json
README.md
SECURITY.md

# 설치 가이드

1. 코드 내려받기

git clone https://github.com/senchalabs/connect

깃허브에서 프로젝트 코드 전체를 내 컴퓨터로 내려받습니다.

cd connect

방금 내려받은 프로젝트 폴더 안으로 이동합니다.

2. Node.js

쉬움 추천

사전 준비물

Git GitHub에서 프로젝트 코드를 내려받으려면 필요합니다.
Node.js npm 명령어를 쓰려면 Node.js가 설치되어 있어야 합니다. LTS(장기지원) 버전을 추천합니다.

$ npm install connect

package.json에 명시된 라이브러리들을 내려받아 설치합니다.

npm install

package.json에 명시된 라이브러리들을 내려받아 설치합니다.

npm test

이 명령어를 터미널에 그대로 입력해 실행하세요.

✅ 명령어 실행 후 터미널에 나타나는 주소(보통 http://localhost:3000 형태)를 브라우저에서 열어보세요.

이 레포의 README에 적힌 실제 명령어를 그대로 가져왔습니다.

// repository documentation

Was this content helpful?

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<div align="center">

<img src="logo/horizontal.png" alt="connect logo" width="450px">

[![NPM Version][npm-version-image]][npm-url]
[![NPM Downloads][npm-downloads-image]][npm-url]
[![Build Status][github-actions-ci-image]][github-actions-ci-url]
[![Test Coverage][coveralls-image]][coveralls-url]

</div>

Connect is an extensible HTTP server framework for [node](http://nodejs.org) using "plugins" known as _middleware_.

```js
var connect = require('connect');
var http = require('http');

var app = connect();

// gzip/deflate outgoing responses
var compression = require('compression');
app.use(compression());

// store session state in browser cookie
var cookieSession = require('cookie-session');
app.use(cookieSession({
    keys: ['secret1', 'secret2']
}));

// parse urlencoded request bodies into req.body
var bodyParser = require('body-parser');
app.use(bodyParser.urlencoded({extended: false}));

// respond to all requests
app.use(function(req, res){
  res.end('Hello from Connect!\n');
});

//create node.js http server and listen on port
http.createServer(app).listen(3000);
```

## Getting Started

Connect is a simple framework to glue together various "middleware" to handle requests.

### Install Connect

```sh
$ npm install connect
```

### Create an app

The main component is a Connect "app". This will store all the middleware
added and is, itself, a function.

```js
var app = connect();
```

### Use middleware

The core of Connect is "using" middleware. Middleware are added as a "stack"
where incoming requests will execute each middleware one-by-one until a middleware
does not call `next()` within it.

```js
app.use(function middleware1(req, res, next) {
  // middleware 1
  next();
});
app.use(function middleware2(req, res, next) {
  // middleware 2
  next();
});
```

### Mount middleware

The `.use()` method also takes an optional path string that is matched against
the beginning of the incoming request URL. This allows for basic routing.

```js
app.use('/foo', function fooMiddleware(req, res, next) {
  // req.url starts with "/foo"
  next();
});
app.use('/bar', function barMiddleware(req, res, next) {
  // req.url starts with "/bar"
  next();
});
```

### Error middleware

There are special cases of "error-handling" middleware. There are middleware
where the function takes exactly 4 arguments. When a middleware passes an error
to `next`, the app will proceed to look for the error middleware that was declared
after that middleware and invoke it, skipping any error middleware above that
middleware and any non-error middleware below.

```js
// regular middleware
app.use(function (req, res, next) {
  // i had an error
  next(new Error('boom!'));
});

// error middleware for errors that occurred in middleware
// declared before this
app.use(function onerror(err, req, res, next) {
  // an error occurred!
});
```

### Create a server from the app

The last step is to actually use the Connect app in a server. The `.listen()` method
is a convenience to start a HTTP server (and is identical to the `http.Server`'s `listen`
method in the version of Node.js you are running).

```js
var server = app.listen(port);
```

The app itself is really just a function with three arguments, so it can also be handed
to `.createServer()` in Node.js.

```js
var server = http.createServer(app);
```

## Middleware

These middleware and libraries are officially supported by the Connect/Express team:

- [body-parser](https://www.npmjs.com/package/body-parser) - previous `bodyParser`, `json`, and `urlencoded`. You may also be interested in:
    - [body](https://www.npmjs.com/package/body)
    - [co-body](https://www.npmjs.com/package/co-body)
    - [raw-body](https://www.npmjs.com/package/raw-body)
  - [compression](https://www.npmjs.com/package/compression) - previously `compress`
  - [connect-timeout](https://www.npmjs.com/package/connect-timeout) - previously `timeout`
  - [cookie-parser](https://www.npmjs.com/package/cookie-parser) - previously `cookieParser`
  - [cookie-session](https://www.npmjs.com/package/cookie-session) - previously `cookieSession`
  - [csurf](https://www.npmjs.com/package/csurf) - previously `csrf`
  - [errorhandler](https://www.npmjs.com/package/errorhandler) - previously `error-handler`
  - [express-session](https://www.npmjs.com/package/express-session) - previously `session`
  - [method-override](https://www.npmjs.com/package/method-override) - previously `method-override`
  - [morgan](https://www.npmjs.com/package/morgan) - previously `logger`
  - [response-time](https://www.npmjs.com/package/response-time) - previously `response-time`
  - [serve-favicon](https://www.npmjs.com/package/serve-favicon) - previously `favicon`
  - [serve-index](https://www.npmjs.com/package/serve-index) - previously `directory`
  - [serve-static](https://www.npmjs.com/package/serve-static) - previously `static`
  - [vhost](https://www.npmjs.com/package/vhost) - previously `vhost`

Most of these are exact ports of their Connect 2.x equivalents. The primary exception is `cookie-session`.

Some middleware previously included with Connect are no longer supported by the Connect/Express team, are replaced by an alternative module, or should be superseded by a better module. Use one of these alternatives instead:

- `cookieParser`
    - [cookies](https://www.npmjs.com/package/cookies) and [keygrip](https://www.npmjs.com/package/keygrip)
  - `limit`
    - [raw-body](https://www.npmjs.com/package/raw-body)
  - `multipart`
    - [connect-multiparty](https://www.npmjs.com/package/connect-multiparty)
    - [connect-busboy](https://www.npmjs.com/package/connect-busboy)
  - `query`
    - [qs](https://www.npmjs.com/package/qs)
  - `staticCache`
    - [st](https://www.npmjs.com/package/st)
    - [connect-static](https://www.npmjs.com/package/connect-static)

Checkout [http-framework](https://github.com/Raynos/http-framework/wiki/Modules) for many other compatible middleware!

## API

The Connect API is very minimalist, enough to create an app and add a chain
of middleware.

When the `connect` module is required, a function is returned that will construct
a new app when called.

```js
// require module
var connect = require('connect')

// create app
var app = connect()
```

### app(req, res[, next])

The `app` itself is a function. This is just an alias to `app.handle`.

### app.handle(req, res[, out])

Calling the function will run the middleware stack against the given Node.js
http request (`req`) and response (`res`) objects. An optional function `out`
can be provided that will be called if the request (or error) was not handled
by the middleware stack.

### app.listen([...])

Start the app listening for requests. This method will internally create a Node.js
HTTP server and call `.listen()` on it.

This is an alias to the `server.listen()` method in the version of Node.js running,
so consult the Node.js documentation for all the different variations. The most
common signature is [`app.listen(port)`](https://nodejs.org/dist/latest-v6.x/docs/api/http.html#http_server_listen_port_hostname_backlog_callback).

### app.use(fn)

Use a function on the app, where the function represents a middleware. The function
will be invoked for every request in the order that `app.use` is called. The function
is called with three arguments:

```js
app.use(function (req, res, next) {
  // req is the Node.js http request object
  // res is the Node.js http response object
  // next is a function to call to invoke the next middleware
})
```

In addition to a plan function, the `fn` argument can also be a Node.js HTTP server
instance or another Connect app instance.

### app.use(route, fn)

Use a function on the app, where the function represents a middleware. The function
will be invoked for every request in which the URL (`req.url` property) starts with
the given `route` string in the order that `app.use` is called. The function is
called with three arguments:

```js
app.use('/foo', function (req, res, next) {
  // req is the Node.js http request object
  // res is the Node.js http response object
  // next is a function to call to invoke the next middleware
})
```

In addition to a plan function, the `fn` argument can also be a Node.js HTTP server
instance or another Connect app instance.

The `route` is always terminated at a path separator (`/`) or a dot (`.`) character.
This means the given routes `/foo/` and `/foo` are the same and both will match requests
with the URLs `/foo`, `/foo/`, `/foo/bar`, and `/foo.bar`, but not match a request with
the URL `/foobar`.

The `route` is matched in a case-insensitive manner.

In order to make middleware easier to write to be agnostic of the `route`, when the
`fn` is invoked, the `req.url` will be altered to remove the `route` part (and the
original will be available as `req.originalUrl`). For example, if `fn` is used at the
route `/foo`, the request for `/foo/bar` will invoke `fn` with `req.url === '/bar'`
and `req.originalUrl === '/foo/bar'`.

## Running Tests

```bash
npm install
npm test
```

## People

The Connect project would not be the same without all the people involved.

The original author of Connect is [TJ Holowaychuk](https://github.com/tj)

The current lead maintainer is [Douglas Christopher Wilson](https://github.com/dougwilson)

[List of all contributors](https://github.com/senchalabs/connect/graphs/contributors)

## License

[MIT](LICENSE)

[coveralls-image]: https://badgen.net/coveralls/c/github/senchalabs/connect/master
[coveralls-url]: https://coveralls.io/r/senchalabs/connect?branch=master
[github-actions-ci-image]: https://badgen.net/github/checks/senchalabs/connect/master?label=ci
[github-actions-ci-url]: https://github.com/jshttp/senchalabs/connect?query=workflow%3Aci
[npm-downloads-image]: https://badgen.net/npm/dm/connect
[npm-url]: https://npmjs.org/package/connect
[npm-version-image]: https://badgen.net/npm/v/connect