grape-swagger provides an autogenerated documentation for your grape-API. The generated documentation is Swagger-compliant, meaning it can easily be discovered in Swagger UI
grape-swagger is available as a gem, install it simply via the commandline:
gem install grape-swagger
or add to your Gemfile:
gem 'grape-swagger'
Once you have the gem installed, mount all your different APIs (with Grape::API
superclass) on a root node. In the root class definition, also include add_swagger_documentation
, this sets up the system and registers the documentation on '/swagger_doc.json'. Setup done, you can restart your local server now.
require 'grape-swagger'
module API
class Root < Grape::API
mount API::Cats
mount API::Dogs
mount API::Pirates
add_swagger_documentation
end
end
To explore your API, either download Swagger UI and set it up yourself or go to the online swagger demo and enter your localhost url documentation root in the url field (probably something in the line of http://localhost:3000/swagger_doc.json)
You can pass a hash with some configuration possibilities to add_swagger_documentation
, all of these are optional:
:mount_path
The path were the API documentation is loaded, default '/swagger_doc':api_version
Version of the API that's being exposed:base_path
Basepath of the API that's being exposed:markdown
Allow markdown innotes
, defaultfalse
Swagger also supports the documentation of parameters passed in the header. Since grape's params[]
doesn't return header parameters we can
to specify header parameters seperately in a block after the description.
desc "Return super-secret information", {
headers: {
"XAuthToken" => {
description: "Valdates your identity",
required: true
},
"XOptionalHeader" => {
description: "Not reallly needed",
required: false
}
}
}
grape-swagger allows you to add an explanation in markdown in the notes field. Which would result in proper formatted markdown in Swagger UI. The default Swagger UI doesn't allow HTML in the notes field, so you need to use an adapted version of Swagger UI (you can find one at https://github.com/tim-vandecasteele/swagger-ui/tree/vasco).
We're using kramdown for parsing the markdown, specific syntax can be found here.
Be sure to enable markdown in the add_swagger_documentation
call: ':markdown => true'
desc "Reserve a virgin in heaven", {
:notes => <<-NOTE
Virgins in heaven
-----------------
> A virgin doesn't come for free
If you want to reserve a virgin in heaven, you have to do
some crazy stuff on earth.
def do_good
puts 'help people'
end
* _Will go to Heaven:_ Probably
* _Will go to Hell:_ Probably not
NOTE
}
- Check out the latest master to make sure the feature hasn't been implemented or the bug hasn't been fixed yet.
- Check out the issue tracker to make sure someone already hasn't requested it and/or contributed it.
- Fork the project.
- Start a feature/bugfix branch.
- Commit and push until you are happy with your contribution.
- Make sure to add tests for it. This is important so I don't break it in a future version unintentionally.
- Please try not to mess with the Rakefile, version, or history. If you want to have your own version, or is otherwise necessary, that is fine, but please isolate to its own commit so I can cherry-pick around it.
Copyright (c) 2012 Tim Vandecasteele. See LICENSE.txt for further details.