Part 3. Create a Client
In the previous section, we wrote a server, now let’s write a client and call the server.
First, create a file called src/bin/client.rs
and type the following:
use lazy_static::lazy_static;
use std::net::SocketAddr;
lazy_static! {
static ref CLIENT: volo_gen::volo::example::ItemServiceClient = {
let addr: SocketAddr = "127.0.0.1:8080".parse().unwrap();
volo_gen::volo::example::ItemServiceClientBuilder::new("volo-example")
.address(addr)
.build()
};
}
#[volo::main]
async fn main() {
tracing_subscriber::fmt::init();
let req = volo_gen::volo::example::GetItemRequest { id: 1024 };
let resp = CLIENT.get_item(req).await;
match resp {
Ok(info) => tracing::info!("{:?}", info),
Err(e) => tracing::error!("{:?}", e),
}
}
Then add the required dependencies to the Cargo.toml
file, which looks like this:
[package]
name = "volo-example"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
anyhow = "1"
async-trait = "0.1"
lazy_static = "1"
tokio = { version = "1", features = ["full"] }
tracing = "0.1"
tracing-subscriber = "0.3"
pilota = "*"
volo = "*" # we recommend to use the latest framework version for new features and bug fixes
volo-thrift = "*" # we recommend to use the latest framework version for new features and bug fixes
volo-gen = { path = "./volo-gen" }
[profile.release]
opt-level = 3
debug = true
debug-assertions = false
overflow-checks = false
lto = true
panic = 'unwind'
incremental = false
codegen-units = 1
rpath = false
[workspace]
members = ["volo-gen"]
resolver = "2"
Then, create a new terminal and run the following command to start our server:
$ cargo run --bin server
Finally, we go back to the current directory and execute the following command, and we can see that the execution is successful:
$ cargo run --bin client
Last modified
August 1, 2023
: chore(deps-dev): bump autocorrect-node from 2.6.2 to 2.7.2 (#738) (74e40c6)