lack-middleware-http-methods

May 15, 2024 · View on GitHub

Responds with 501: Not Implemented when the request method is unsupported by the server

Usage

Wrap app:

(funcall lack/middleware/http-methods:*lack-middleware-http-methods*
         *app*
         :methods '(:GET :HEAD :POST :PUT :PATCH :DELETE :OPTIONS))

Lack Builder:

(lack:builder
 (:http-methods :methods '(:GET :HEAD :POST :PUT :PATCH :DELETE :OPTIONS))
 *app*)

Custom handler as list:

(lack:builder
 (:http-methods :methods '(:GET :HEAD :POST :PUT :PATCH :DELETE :OPTIONS)
                :on-unknown `(501
                              (:content-type "application/json"
                               :content-length 32)
                              ("{\"http_error\":\"not_implemented\"}")))
 *app*)

Custom handler as function:

(lack:builder
 (:http-methods :methods '(:GET :HEAD :POST :PUT :PATCH :DELETE :OPTIONS)
                :on-unknown #'(lambda (env)
                                (declare (ignore env))
                                `(501
                                  (:content-type "application/json"
                                   :content-length 32)
                                  ("{\"http_error\":\"not_implemented\"}"))))
 *app*)

Methods HEAD and GET are configured by default as these are required to be supported by HTTP servers, but can be provided in the methods parameter.

Development

Run tests:

(asdf:test-system :foo.lisp.lack-middleware-http-methods)

Installation

Not in Quicklisp, so clone to "local-projects/".

Author

John Newton (jnewton@lisplizards.dev)

Copyright

License

Apache-2.0