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TJ Holowaychuk 2014-06-13 09:02:06 -07:00
parent 288d0c00c6
commit db0875208d
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17
docs/api/response.md
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@ -187,25 +187,24 @@ this.type = 'png';
Very similar to `this.request.is()`.
Check whether the response type is one of the supplied types.
This is particularly useful for creating middleware that
change certain responses.
manipulate responses.
For example, this is a middleware that minifies
all HTML response except for streamss.
all HTML responses except for streams.
```js
var minify = require('html-minifier');
app.use(function *minifyHTML(next){
yield* next;
yield next;
if (!this.response.is('html')) return;
var body = this.response.body;
if (!body) return;
// too difficult to do this with a stream
if ('function' == typeof body.pipe) return;
if (Buffer.isBuffer(body)) body = body.toString('utf8');
this.response.body = minify(body);
var body = this.body;
if (!body || body.pipe) return;
if (Buffer.isBuffer(body)) body = body.toString();
this.body = minify(body);
});
```