class Grape::Middleware::Versioner::Path
This middleware sets various version related rack environment variables based on the uri path and removes the version substring from the uri path. If the version substring does not match any potential initialized versions, a 404 error is thrown.
Example: For a uri path
/v1/resource
The following rack env variables are set and path is rewritten to ‘/resource’:
env['api.version'] => 'v1'
Public Instance Methods
before()
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# File lib/grape/middleware/versioner/path.rb, line 22 def before path_info = Grape::Router.normalize_path(env[Rack::PATH_INFO]) return if path_info == '/' [mount_path, Grape::Router.normalize_path(prefix)].each do |path| path_info.delete_prefix!(path) if path.present? && path != '/' && path_info.start_with?(path) end slash_position = path_info.index('/', 1) # omit the first one return unless slash_position potential_version = path_info[1..slash_position - 1] return unless potential_version.match?(pattern) version_not_found! unless potential_version_match?(potential_version) env[Grape::Env::API_VERSION] = potential_version end