How to dynamically set spec_url in RapiDoc?

[dean-shaff]

I'm wondering how I can dynamically set the spec_url for RapiDoc:

This works fine:

use actix_web::{HttpServer, App}; 
use utoipa_rapidoc::Rapidoc;

HttpServer::new(move || {
    App::new()
        .service(RapidDoc::new("/api-docs/openapi.json"))
})
...

But what if I want to do the following?:

use actix_web::App; 
use utoipa_rapidoc::Rapidoc;

let base_url = "/some/path";
let spec_url = format!("{}/api-docs/openapi.json", base_url);

HttpServer::new(move || {
    App::new()
        .service(RapiDoc::new(&spec_url));
})

The fact that I have to pass a &str to RapiDoc::new makes this impossible!

[simongoricar]

A bit late to the party, but I can also reproduce this. Even if we do spec_url.clone().as_str(), we get a temporary value dropped while borrowed. It seems to me we'd need a 'static str because of the move closure, not just any str borrow.

let base_url = "/some/path";
let spec_url = format!("{}/api-docs/openapi.json", base_url);

HttpServer::new(move || App::new().service(RapiDoc::new(spec_url.clone().as_str())));

error[E0716]: temporary value dropped while borrowed
   --> ...\src\main.rs:147:61
    |
147 |     HttpServer::new(move || App::new().service(RapiDoc::new(spec_url.clone().as_str())));
    |                                                -------------^^^^^^^^^^^^^^^^----------- temporary value is freed at the end of this statement
    |                                                |            |
    |                                                |            creates a temporary value which is freed while still in use
    |                                                argument requires that borrow lasts for `'static`

Unless there's something I'm missing, this has a very simple fix: simply have the path field of RapiDoc take a String instead of a borrowed str, or even better, a Cow<'static, str>, like utoipa_swagger_ui.

I'll submit a PR.