https://github.com/kessler/node-dynamic-middleware

turn a connect/express middleware into a runtime replaceable, deletable middleware
https://github.com/kessler/node-dynamic-middleware

Last synced: about 2 months ago
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turn a connect/express middleware into a runtime replaceable, deletable middleware

• Host: GitHub
• URL: https://github.com/kessler/node-dynamic-middleware
• Owner: kessler
• License: mit
• Created: 2014-06-25T00:07:09.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2022-12-30T21:01:56.000Z (over 1 year ago)
• Last Synced: 2024-04-13T23:24:41.169Z (5 months ago)
• Language: JavaScript
• Homepage:
• Size: 160 KB
• Stars: 43
• Watchers: 2
• Forks: 6
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# dynamic-middleware [![Build Status](https://secure.travis-ci.org/kessler/node-dynamic-middleware.png?branch=master)](http://travis-ci.org/kessler/node-dynamic-middleware)

Replace or disable a connect/express middleware in runtime

compatible with express 3, express 4 and connect 3

### Why?

its quite inconvenient to replace a middleware after you start a connect / express server

### Install

```

    npm install dynamic-middleware

```

### Usage

```javascript

const DynamicMiddleware = require('dynamic-middleware')

const express = require('express')

const app = express()

// a simple middleware

function myMiddleware(req, res, next) {

    res.end('1')

}

// create a dynamic one from it

let dm = DynamicMiddleware.create(myMiddleware)

app.get('/', dm.handler()) 

// disable the middleware, will reply with 404 now

dm.disable() 

// enable it back

dm.enable()

// or replace it with something else

dm = dm.replace(function(req, res, next) {

    res.end('2')

})

// create a dynamic error middlware

let errorDm = DynamicMiddleware.create((err, req, res, next) => { ... })

app.use(errorDm.errorHandler())

```

## see also

[loadbalance module](https://github.com/kessler/node-loadbalance)

[loadbalance-middleware module](https://github.com/kessler/node-loadbalance-middleware)

## changelog

### 3.x.x

Previous versions operated by manipulating the internal state of express/connect , this approach worked well for real middlewares (.use()) but was terrible for routes (.get() etc..). The new version does not do that, but rather manages the state internally.

### 4.x.x

The public interface of this module has changed

## license

[MIT](http://opensource.org/licenses/MIT) © [yaniv kessler](yanivkessler.com)