http: add handler_base::verify_mandatory_params() #2084
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xemul
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Feb 9, 2024
include/seastar/http/handlers.hh
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| @@ -66,8 +67,7 @@ public: | |||
| return *this; | |||
| } | |||
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| std::vector<sstring> _mandatory_param; | |||
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| friend class routes; | |||
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This caught my eye. I think it's better to get const getter for _mandatory_param reference, or move the verify_param() helper to be handler_base's method
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i plan to stuff move info into _mandatory_param, so we can verify the type of the params right in seastar, instead of in the higher application level. so the const getter is a no-go, as it exposes the internals to the public. so i am repurposing this PR to go with the 2nd route.
before this change, this member function was a free function called by `routes::handle()`, but since `handler_base` is closer to the `_mandatory_param` and in the following change, we will store the expected param types in `_mandatory_param`, this makes `handler_base` a better home for the verification function. so to prepare for the change, let's move this free function into handler_base. also, let's mark `_mandatory_param` private, allows us to store the typing of the params into `_mandatory_param`. as this variable should not be visible from the outer world. and the typing information should be opaque from the caller. Refs scylladb#2082 Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>
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before this change, this member function was a free function called by `routes::handle()`, but since `handler_base` is closer to the `_mandatory_param` and in the following change, we will store the expected param types in `_mandatory_param`, this makes `handler_base` a better home for the verification function. so to prepare for the change, let's move this free function into handler_base. also, let's mark `_mandatory_param` private, allows us to store the typing of the params into `_mandatory_param`. as this variable should not be visible from the outer world. and the typing information should be opaque from the caller. Refs scylladb#2082 Signed-off-by: Kefu Chai <kefu.chai@scylladb.com> Closes scylladb#2084
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before this change, this member function was a free function called
by
routes::handle(), but sincehandler_baseis closer to the_mandatory_paramand in the following change, we will storethe expected param types in
_mandatory_param, this makeshandler_basea better home for the verification function. so toprepare for the change, let's move this free function into handler_base.
also, let's mark
_mandatory_paramprivate, allows us to store thetyping of the params into
_mandatory_param. as this variable shouldnot be visible from the outer world. and the typing information should
be opaque from the caller.
Refs #2082
Signed-off-by: Kefu Chai kefu.chai@scylladb.com