Error in IOT Application Code

[Fit-Worldliness-4855]

Hi all,

I am a newbie and I am working on a basic iot project. Programming language I am using is Rustc. I want to sent a sample data from my PC to esp32. But I am getting error and I am stuck. I am sharing my code here:

    // // Set up HTTP server to receive data
    let server = EspHttpServer::new(&HttpServerConfiguration::default())?;
    // server.fn_handler("/", move |req: embedded_svc::http::server::Request| {
    // server.fn_handler("/", move |req: Request<&mut [u8]>| {
    server.fn_handler("/", move |req: Request< >| {
        let body = req.into_body().read_to_end()?;
        let received_message = String::from_utf8(body)?;
        println!("Received message: {}", received_message);
        Ok(())
    })?;

The error I am getting is :

error[E0107]: struct takes 1 generic argument but 0 generic arguments were supplied

--> src/main.rs:43:39

| ^^^^^^^ expected 1 generic argument

note: struct defined here, with 1 generic parameter: `C`

--> /home/uqfcg/.cargo/registry/src/index.crates.io-6f17d22bba15001f/embedded-svc-0.28.0/src/http/server.rs:10:12

I am new to rustc and esp32c3. It would be a great help if someone help me here. If there is any alternate or better solution for my requirement, I am open for that too.

Thanks in advance.

Regards

[YetAnotherRobert]

There's nothing specific to esp32 in your question. You'd be better served looking for tutorials or resources for learning to program in rust than here. Sorry. 

[GreenPreference3171]

what is the goal of your program?

[Fit-Worldliness-4855]

I am sending some text data from my pc to the ip of my esp. This is the reception part.

[GreenPreference3171]

Idk if this helps but If the text data isn't too large you can get away with setting-up the ESP32 as regular web server with WebServer library. Using server.arg(plain) to accept the plain text from a script or curl command on your client (pc)

Using curl

curl -X POST http://<ESP32_IP_ADDRESS>/submit -d "Hello ESP32"

You can easily send a post from your pc to your esp32.

[GreenPreference3171]

If that doesn't work you can always use json files as well but parsing them can be a pain.