Show HN: Generate HTTP and Jsonrpc from IDL

1 comments

• battery8318 5 hours ago

  I've extended the functionality of (OMG DDS)IDL and written a code generator. It can generate C/C++/Rust/Rust HTTP/Rust JsonRPC/OpenAPI/OpenRPC code from IDL.

  Of course, the Rust HTTP/Rust JsonRPC/OpenAPI/OpenRPC generation is currently more mature.

  I previously used utoipa to generate OpenAPI from code, but I quickly grew tired of the endless boilerplate code. So I made this!!!

  Simply put, you use IDL to describe an HTTP service, and I'll generate an interface, a Service. If you implement an interface for a given interface, I can generate routes for you. It works like this...

  ```rust

  use xidlc_examples::hello_world::HelloWorld;

  use xidlc_examples::hello_world::HelloWorldSayHelloRequest;

  use xidlc_examples::hello_world::HelloWorldServer;

  struct HelloWorldImpl;

  #[async_trait::async_trait]

  impl HelloWorld for HelloWorldImpl {

      async fn sayHello(
  
          &self,
  
          req: 

  xidl_rust_axum::Request<HelloWorldSayHelloRequest>,

      ) -> Result<(), xidl_rust_axum::Error> {
  
          let HelloWorldSayHelloRequest { name } = req.data;
  
          println!("Hello, {}!", name);
  
          Ok(())
      }
  

  }

  #[tokio::main]

  async fn main() -> Result<(), Box<dyn std::error::Error>> {

      let addr = "127.0.0.1:3000";
  
      println!("axum hello_world server listening on {addr}");
  
  
      xidl_rust_axum::Server::builder()
          .with_service(HelloWorldServer::new(HelloWorldImpl))
          .serve(addr)
          .await?;
  
      Ok(())

  } ```

  Currently, support for streaming (HTTP/JsonRPC) is still quite basic. It's defined at https://github.com/xidl/xidl/tree/master/docs/rfc

  Besides that, I've used HTTP/OpenAPI in my project, and I think it currently meets my overall needs.

  Furthermore, xidlc provides simple interfaces for extension. I find xidlc's design truly fascinating.

  I've added some snapshot tests to avoid regression issues.

  I used Google Translate to translate this post, so I'm not sure if it conforms to English grammar. I sincerely hope to receive any feedback, thank you.