support both http1, http2, and https

[rootBiao]

Is there any way to enable Actix-web to support both http1, http2, and https?

[robjtede]

When TLS/HTTPS is set up, both HTTP/1.x and HTTP/2 are supported.

https://actix.rs/docs/http2

[rootBiao]

Is there a way to have http1, http2, and https listen to different ports separately？

[robjtede]

Yes, you can call .bind() and .bind_rustls() on the same HttpServer.

[rootBiao]

What methods are there to use http2 without using https, such as listening to port 8080 for http1, listening to port 80 for http2, and listening to port 443 for https

[robjtede]

HTTP/2 without TLS is implemented and will be released in the upcoming v4.4 release. At that point you'll be able to do this to support your use case:

  .bind(8080)? // <-- only HTTP/1.x
  .bind_auto_h2c(80)? // <-- HTTP/1.x & HTTP/2
  .bind_rustls(443, ...)? // <-- HTTP/1.x & HTTP/2 (over TLS)

[rootBiao]

In lower versions of Actix-web, http1 and http2 can listen to the same port, such as 80. Will this feature be supported in future versions？

[robjtede]

It's not currently possible without using the lower level actix-http crate.

Currently:

  .bind(8080)? // <-- only HTTP/1.x
  .bind_rustls(443, ...)? // <-- HTTP/1.x & HTTP/2 (over TLS)

[rootBiao]

Thank you very much！