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