Testing default values for query parameters

[oren0e]

Hi,
If I have an endpoint like:

#[get("/known-issues?<id>&<only_first>", rank = 1)]
pub fn find_known_issues(
...

Is there a way that I can access the request's query parameter values that were sent? Basically I want to test that if I don't pass the only_first flag (which is a boolean) then it defaults to false.

[somehowchris]

You could either use a Option type and then use unwrap_or_default or use a struct for your query params which then uses the FromForm style with which you can set a default https://rocket.rs/v0.5-rc/guide/requests/#defaults

[somehowchris]

If you like to make it fun and complicated, create your own data guard to set defaults on type T

[oren0e]

@somehowchris wait, if I hit that endpoint without the only_first parameter then in the logs I see it as False, I assumed this is some default behaviour of rocket, and if it is - then how can I access that "False"? Utilizing the existing rocket solutions

[oren0e]

And I also don't use forms in my code, it's just a rest endpoint

[oren0e]

I saw that it is possible to do:

    let req = client
        .get(format!("/api/known-issues?id={}", encoded_id));
    println!("{:?}", req);
    let inner_req = req.inner();

and then inner_req can get me the query param by using .get_query_value() - but the problem is that the resulting request struct is pretty much empty:

Request { method: Cell { value: Get }, uri: Origin { source: None, path: "/", query: None, segment_count: [uninitialized
 storage] }, headers: HeaderMap { headers: {} }, remote: None }

How is it possible? Why is it empty despite the fact that I pass query params? (and presumably the missing only_first param should be there too with its default value, as I would expect)