Consider using serde_qs instead of serde_urlencoded for deserializing Query

[theowenyoung]

Feature Request

Motivation

Hi, for query string like key[]=value1&key[]=value2, serde_urlencoded will not respect it as an array, could we consider using serde_qs instead of serde_urlencoded for deserializing Query?

axum/axum/src/extract/query.rs

Line 60 in c7b8813

let value = serde_urlencoded::from_str(query)

Proposal

Just using serde_qs::from_str<T>(raw_query_string) instead of serde_urlencoded

Alternatives

Yes, now I can get the raw query string to parse it.

[davidpdrsn]

There is no standard way to serialize arrays in query strings, therefore serde_urlencoded doesn't support it. So I think its the right choice for axum. Note that warp and actix-web also uses serde_urlencoded.

See #434 for more details and a workaround.