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 (almost 11 years ago)
- Default Branch: master
- Last Pushed: 2022-12-30T21:01:56.000Z (over 2 years ago)
- Last Synced: 2025-03-08T08:12:40.372Z (about 2 months ago)
- Language: JavaScript
- Homepage:
- Size: 160 KB
- Stars: 42
- Watchers: 1
- Forks: 6
- Open Issues: 2
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# dynamic-middleware [](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)