What should I do if I want to set different proxy url for every request?

[RecordingTheSmile]

As far as I know, now we can make request with proxy like:

let client = reqwest::Client::builder()
    .proxy(reqwest::Proxy::http("https://my.prox")?)
    .build()?;

But now, I have a very special project, which proxy url is different for every request and should be fetched remotely by another http request. What should I do if I want to do this without create new reqwest::Client for every request?

[seanmonstar]

Is Proxy::custom not able to do what you want?

[RecordingTheSmile]

Yes, because Proxy::custom doesn't support async method. My proxy url is fetched remotely, so I wish it can be called asynchronously.

[cxw620]

Crate async_once may help you, or see here