Expose source location in API definition

[dblock]

It used to be possible to get access to the original API block at runtime via env['api.endpoint'].block, so you could do something like env['api.endpoint'].block.source_location to figure out where the API was actually defined.

Since 3bbb4fe we create an anonymous method, then drop it, losing this information.

For debugging purposes it would be useful to expose block properties at the level of the endpoint.

[dblock]

Currently we can enable this with a monkey patch:

module Grape
  class Endpoint
    alias_method :endpoint_initialize, :initialize
    def initialize(settings, options = {}, &block)
      endpoint_initialize settings, options, &block
      options[:source_location] = block.source_location if block_given?
    end
  end
end

Want to know where the API call was defined?

env['api.endpoint'].options[:source_location]

[dblock]

With e2b12e4 you can just do source.source_location in any API block.