Rack


Rack provides a minimal interface between webservers supporting Ruby and Ruby frameworks.

Informally, a Rack application is a thing that responds to #call and takes a hash as argument, returning an array of status, headers and a body. The body needs to respond to #each and then successively return strings that represent the response body and provide more convenience (Rack::Request and Rack::Response) that you are free to use if you wish.

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