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Add docs to Kemal::OverrideMethodHandler

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Serdar Dogruyol 2018-10-26 18:45:04 +03:00
parent 3f7c8b4577
commit a60168d039
1 changed files with 11 additions and 2 deletions
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13
src/kemal/override_method_handler.cr
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@ -1,4 +1,13 @@
module Kemal
# Adds support for `_method` magic parameter to simulate PUT, PATCH, DELETE requests in an html form.
#
# This middleware is **not** in the default Kemal handlers. You need to explicitly add this to your handlers:
#
# ```ruby
# add_handler Kemal::OverrideMethodHandler
# ```
#
# **Important:** This middleware consumes `params.body` to read the `_method` magic parameter.
class OverrideMethodHandler
include HTTP::Handler
INSTANCE = new
@ -10,14 +19,14 @@ module Kemal
def call(context)
request = context.request
if request.method == OVERRIDE_METHOD
if context.params.body.has_key?(OVERRIDE_METHOD_PARAM_KEY) && override_method_valid?(context.params.body["_method"])
if context.params.body.has_key?(OVERRIDE_METHOD_PARAM_KEY) && override_method_valid?(context.params.body[OVERRIDE_METHOD_PARAM_KEY])
request.method = context.params.body["_method"].upcase
end
end
call_next(context)
end
def override_method_valid?(override_method : String)
private def override_method_valid?(override_method : String)
ALLOWED_METHODS.includes?(override_method.upcase)
end
end