No way to return just string in response

[serj-p]

i've searched through documentation of rebar, marshmallow and trhough open issues

it seems like there's no way to define an endpoint which would return not objects or lists of objects but primitive types, i.e. string, int etc, what is a valid json response. is it possible to add fields.String, etc support as response_body_schema?

[Sytten]

Honestly before you mentioned it, I never thought that a simple string was a valid JSON.
What is your usecase for it? I am not even sure marshmallow supports that.

[serj-p]

I am rewriting my app from flask-restplus to rebar and I had an api endpoint api/get_recent_id which was returning whether json "RECENTID" or null if there was no recent one. on rebar there's only a possibility to return not None not marshmallow-validated primitive types specifying response_body_schema to None. null cannot be returned by design, because rebar returns empty content what is not a valid json and client would not understand it. So I ended up returning empty string.