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100 lines
2 KiB
Markdown
100 lines
2 KiB
Markdown
<img src="https://avatars3.githubusercontent.com/u/15321198?v=3&s=200" width="100" height="100" />
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# Kemal
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[](https://travis-ci.org/kemalcr/kemal)
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Lightning Fast, Super Simple web framework for [Crystal](http://www.crystal-lang.org).
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Inspired by [Sinatra](http://www.sinatrarb.com/)
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Kemal is under heavy development and currently supports Crystal 0.9.0.
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# Super Simple <3
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```ruby
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require "kemal"
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get "/" do
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"Hello World!"
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end
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```
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Build and run!
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```
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crystal build --release src/kemal_sample.cr
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./kemal_sample
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```
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Go to *http://localhost:3000*
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Check [samples](https://github.com/kemalcr/kemal/tree/master/samples) for more.
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# Installation
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Add it to your ```shard.yml```
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```yml
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dependencies:
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kemal:
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github: kemalcr/kemal
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branch: master
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```
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## Routes
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In Kemal, a route is an HTTP method paired with a URL-matching pattern. Each route is associated with a block:
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```ruby
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get "/" do
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.. show something ..
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end
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post "/" do
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.. create something ..
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end
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put "/" do
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.. replace something ..
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end
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patch "/" do
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.. modify something ..
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end
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delete "/" do
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.. annihilate something ..
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end
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```
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## Environment
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Accessing the environment (query params, body, content_type, headers, status_code) is super easy. You can use the environment returned from the block:
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```ruby
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# Matches /hello/kemal
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get "/hello/:name" do |env|
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name = env.params["name"]
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"Hello back to #{name}"
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end
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# Matches /resize?width=200&height=200
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get "/resize" do |env|
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width = env.params["width"]
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height = env.params["height"]
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end
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# Set the content as application/json and return JSON
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get "/user.json" do |env|
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kemal = {name: "Kemal", language: "Crystal"}
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env.content_type = "application/json"
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kemal.to_json
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end
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# Add headers to your response
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get "/headers" do |env|
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env.add_header "Accept-Language", "tr"
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env.add_header "Authorization", "Token 12345"
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end
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```
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## Thanks
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Thanks to Manas for their awesome work on [Frank](https://github.com/manastech/frank).
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