How do I make an HTTP request from Rust?

Question

How can I make an HTTP request from Rust? I can\'t seem to find anything in the core library.

I don\'t need to parse the output, just make a request and check the HT

Answer 1

To elaborate on Isaac Aggrey's answer, here's an example of making a POST request with query parameters using the reqwest library.

Cargo.toml

[package]
name = "play_async"
version = "0.1.0"
edition = "2018"

[dependencies]
reqwest = "0.10.4"
tokio = { version = "0.2.21", features = ["macros"] }

Code

use reqwest::Client;

type Error = Box;
type Result = std::result::Result;

async fn post_greeting() -> Result<()> {
    let client = Client::new();
    let req = client
        // or use .post, etc.
        .get("https://webhook.site/1dff66fd-07ff-4cb5-9a77-681efe863747")
        .header("Accepts", "application/json")
        .query(&[("hello", "1"), ("world", "ABCD")]);

    let res = req.send().await?;
    println!("{}", res.status());

    let body = res.bytes().await?;

    let v = body.to_vec();
    let s = String::from_utf8_lossy(&v);
    println!("response: {} ", s);

    Ok(())
}

#[tokio::main]
async fn main() -> Result<()> {
    post_greeting().await?;

    Ok(())
}

Go to https://webhook.site and create your webhook link and change the code to match. You'll see the request was received on server in realtime.

This example was originally based on Bastian Gruber's example and has been updated for modern Rust syntax and newer crate versions.