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khrt / Raisin

Raisin - a REST API micro framework for Perl 🐫 🐪
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null in body params is not the same as undef #78

Open bensinober opened 5 years ago

bensinober commented 5 years ago

Thanks for this great and simple descriptive API!

I am thinking that the following code: https://github.com/khrt/Raisin/blob/7e460eea59bfdd4ffcb387f27241959059dec354/lib/Raisin/Request.pm#L25-L37

will filter out also defined null values in JSON body, which makes it difficult to define optional params that can be null, meaning a typical PUT or PATCH request to "unset" a value. Say, you have a DB column that needs to be NULLed. Of course, you still get the "undef"s from req->raisin_parameters, so it can easily be circumvented, but I am still unsure why "undef"s should be removed from declared_params and params?

Is line 34 actually neccessary, is my point.

khrt commented 5 years ago

Right, the way it's implemented right now doesn't make much sense and might be fixed.

meylingtaing commented 4 years ago

Hi! I'm currently using this perl module for a project, and I ran into this issue. We need to be able to differentiate between passing a parameter with value undef, and not passing that parameter at all. What needs to happen to get this fix worked on?

khrt commented 4 years ago

Hi @meylingtaing, at the moment I do have much time to work on this.

There is a work-in-progress https://github.com/polettix/Raisin/commit/48a9e866079e45b7816f476cfb0f3a66d89d37c6 stared by @polettix, maybe it can be adopted somehow.

I'll try to do my best to resolve the issue, but unfortunately cannot give you any estimates on this.