client

tonic crate - example client

Example tonic gRPC client; this code depends on protocol definitions that are in a *.proto file, not shown here. For more, see the Rust Quick Guide git repository projects, which has a complete tonic "helloworld" server and client.

use hello_world::greeter_client::GreeterClient;
use hello_world::HelloRequest;

pub mod hello_world {
    tonic::include_proto!("helloworld");
}

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let mut client = GreeterClient::connect("http://[::1]:50051").await?;

    let request = tonic::Request::new(HelloRequest {
        name: "Tonic".into(),
    });

    let response = client.say_hello(request).await?;

    println!("RESPONSE={:?}", response);

    Ok(())
}