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Diffstat (limited to 'src/protocol.lisp')
| -rw-r--r-- | src/protocol.lisp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/protocol.lisp b/src/protocol.lisp index 74019b1..6951077 100644 --- a/src/protocol.lisp +++ b/src/protocol.lisp @@ -112,6 +112,31 @@ on the size of request bodies.") (check-request-compliance (find-class epclass))) (:method ((epclass t)))) +(defgeneric slot-value-mapper (endpoint-class initarg slot-value) + (:documentation "Values arrive from clients in all manner of ways: in a JSON body, in +query arguments, as form body posts. Weekend allows users to register +body parsers, which transform post bodies according to the request's +mimetype. However, sometimes this isn't good enough. + +A value may require additional alteration before it fills an endpoint +slot. + +SLOT-VALUE-MAPPER is specialized on endpoints, initarg names, and slot +value types to parse or transform values to be what they out to be for +a slot's declared type. + +ENDPOINT-CLASS values MUST BE AN ENDPOINT CLASS. +INITARG values MUST BE A KEYWORD.") + + (:method :around (endpoint (initarg t) value) + (assert (keywordp initarg) (initarg) "Initarg is not a keyword ~a" + initarg) + (call-next-method)) + + (:method (endpoint initarg value) + value)) + + (defgeneric authenticate (endpoint) (:documentation "Returns a boolean. Any protected endpoint should implement this. Called before handling, should be used to supply |