Update middlewares doc

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Sdogruyol 2015-12-27 12:05:19 +02:00
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# Middlewares
You can create your own middlewares by inheriting from ```HTTP::Handler```
## Built-in Middlewares
Kemal has built-in middlewares for common use cases.
### HTTP Basic Authorization
This middleware let's you add HTTP Basic Authorization support to your Kemal application.
To increase easy of use you can use this middleware with `basic_auth` macro like below.
```crystal
require "kemal"
basic_auth "username", "password"
get "/" do
"This won't render without correct username and password."
end
```
## Custom middlewares
You can create your own middleware by inheriting from ```HTTP::Handler```
```crystal
class CustomHandler < HTTP::Handler