Iterating queryparams?

[jakob-lilliemarck]

Hey,
First of all, thank you for an great api framework. The ease of use with poem-openapi really made all the difference for me when comparing with other frameworks. Great work!

I'm trying to write a poem-middleware that creates a Filter struct from any query-params on the request object, but I can't find a way to iterate trough all of the query-params - How do I do this? Are there any examples of iterating query-params on the request object?

[sunli829]

so easy: 🙂

let app = Route::new()
        .at("/hello/:name", get(hello))
        .around(|ep, request| async move {
            // parse the query params
            let query_params = request.params::<Vec<(String, String)>>()?;
            for (name, value) in query_params {
                // do something...
                println!("{}: {}", name, value);
            }
            ep.call(request).await // call the next handler
        })
        .with(Tracing);

[jakob-lilliemarck]

Great! Thank you 😸
What would be the standard way to deserialize the params to their respective type? I want the querystring to deserialize as any json, i.e. int, bool, array, object, string. I did some attempt to use serde_json::Json::Value for the value-type, but it just seem to always return string.
If not, perhaps there is there a way to retrieve the querystring as is, i.e. key=1&key2[]=1&key2[]=3?