121 lines
3.2 KiB
Markdown
121 lines
3.2 KiB
Markdown
|
# serve-favicon
|
||
|
|
|
||
|
|
[![NPM Version][npm-image]][npm-url]
|
||
|
|
[![NPM Downloads][downloads-image]][downloads-url]
|
||
|
|
[![Build Status][travis-image]][travis-url]
|
||
|
|
[![Test Coverage][coveralls-image]][coveralls-url]
|
||
|
|
[![Gittip][gittip-image]][gittip-url]
|
||
|
|
|
||
|
|
Node.js middleware for serving a favicon.
|
||
|
|
|
||
|
|
Why use this module?
|
||
|
|
|
||
|
|
- User agents request `favicon.ico` frequently and indiscriminately, so you
|
||
|
|
may wish to exclude these requests from your logs by using this middleware
|
||
|
|
before your logger middleware.
|
||
|
|
- This module caches the icon in memory to improve performance by skipping
|
||
|
|
disk access.
|
||
|
|
- This module provides an `ETag` based on the contents of the icon, rather
|
||
|
|
than file system properties.
|
||
|
|
- This module will serve with the most compatible `Content-Type`.
|
||
|
|
|
||
|
|
## Install
|
||
|
|
|
||
|
|
```bash
|
||
|
|
npm install serve-favicon
|
||
|
|
```
|
||
|
|
|
||
|
|
## API
|
||
|
|
|
||
|
|
### favicon(path, options)
|
||
|
|
|
||
|
|
Create new middleware to serve a favicon from the given `path` to a favicon file.
|
||
|
|
`path` may also be a `Buffer` of the icon to serve.
|
||
|
|
|
||
|
|
#### Options
|
||
|
|
|
||
|
|
Serve favicon accepts these properties in the options object.
|
||
|
|
|
||
|
|
##### maxAge
|
||
|
|
|
||
|
|
The `cache-control` `max-age` directive in `ms`, defaulting to 1 day. This can
|
||
|
|
also be a string accepted by the [ms](https://www.npmjs.org/package/ms#readme)
|
||
|
|
module.
|
||
|
|
|
||
|
|
## Examples
|
||
|
|
|
||
|
|
Typically this middleware will come very early in your stack (maybe even first)
|
||
|
|
to avoid processing any other middleware if we already know the request is for
|
||
|
|
`/favicon.ico`.
|
||
|
|
|
||
|
|
### express
|
||
|
|
|
||
|
|
```javascript
|
||
|
|
var express = require('express');
|
||
|
|
var favicon = require('serve-favicon');
|
||
|
|
|
||
|
|
var app = express();
|
||
|
|
app.use(favicon(__dirname + '/public/favicon.ico'));
|
||
|
|
|
||
|
|
// Add your routes here, etc.
|
||
|
|
|
||
|
|
app.listen(3000);
|
||
|
|
```
|
||
|
|
|
||
|
|
### connect
|
||
|
|
|
||
|
|
```javascript
|
||
|
|
var connect = require('connect');
|
||
|
|
var favicon = require('serve-favicon');
|
||
|
|
|
||
|
|
var app = connect();
|
||
|
|
app.use(favicon(__dirname + '/public/favicon.ico'));
|
||
|
|
|
||
|
|
// Add your middleware here, etc.
|
||
|
|
|
||
|
|
app.listen(3000);
|
||
|
|
```
|
||
|
|
|
||
|
|
### vanilla http server
|
||
|
|
|
||
|
|
This middleware can be used anywhere, even outside express/connect. It takes
|
||
|
|
`req`, `res`, and `callback`.
|
||
|
|
|
||
|
|
```javascript
|
||
|
|
var http = require('http');
|
||
|
|
var favicon = require('serve-favicon');
|
||
|
|
var finalhandler = require('finalhandler');
|
||
|
|
|
||
|
|
var _favicon = favicon(__dirname + '/public/favicon.ico');
|
||
|
|
|
||
|
|
var server = http.createServer(function onRequest(req, res) {
|
||
|
|
var done = finalhandler(req, res);
|
||
|
|
|
||
|
|
_favicon(req, res, function onNext(err) {
|
||
|
|
if (err) return done(err);
|
||
|
|
|
||
|
|
// continue to process the request here, etc.
|
||
|
|
|
||
|
|
res.statusCode = 404;
|
||
|
|
res.end('oops');
|
||
|
|
});
|
||
|
|
});
|
||
|
|
|
||
|
|
server.listen(3000);
|
||
|
|
```
|
||
|
|
|
||
|
|
## License
|
||
|
|
|
||
|
|
[MIT](LICENSE)
|
||
|
|
|
||
|
|
[npm-image]: https://img.shields.io/npm/v/serve-favicon.svg?style=flat
|
||
|
|
[npm-url]: https://npmjs.org/package/serve-favicon
|
||
|
|
[travis-image]: https://img.shields.io/travis/expressjs/serve-favicon.svg?style=flat
|
||
|
|
[travis-url]: https://travis-ci.org/expressjs/serve-favicon
|
||
|
|
[coveralls-image]: https://img.shields.io/coveralls/expressjs/serve-favicon.svg?style=flat
|
||
|
|
[coveralls-url]: https://coveralls.io/r/expressjs/serve-favicon?branch=master
|
||
|
|
[downloads-image]: https://img.shields.io/npm/dm/serve-favicon.svg?style=flat
|
||
|
|
[downloads-url]: https://npmjs.org/package/serve-favicon
|
||
|
|
[gittip-image]: https://img.shields.io/gittip/dougwilson.svg?style=flat
|
||
|
|
[gittip-url]: https://www.gittip.com/dougwilson/
|