HTTP reqwest sending cookie

The curl command

curl --cookie counter=42 "https://httpbin.org/get"

and the output:

{
  "args": {},
  "headers": {
    "Accept": "*/*",
    "Cookie": "counter=42",
    "Host": "httpbin.org",
    "User-Agent": "curl/8.2.1",
    "X-Amzn-Trace-Id": "Root=1-65b2455d-400413860278b6624dc30284"
  },
  "origin": "46.120.9.250",
  "url": "https://httpbin.org/get"
}

The dependencies

examples/simple-blocking-http-reqwest-sending-cookie/Cargo.toml

[package]
name = "simple-blocking-http-reqwest-sending-cookie"
version = "0.1.0"
edition = "2021"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]
reqwest = { version = "0.11", features = ["blocking", "json"] }
serde_json = "1.0"

The code

examples/simple-blocking-http-reqwest-sending-cookie/src/main.rs

use reqwest::blocking::Client;

fn main() {
    let client = Client::new();

    match client.get("https://httpbin.org/get").header("Cookie", "counter=42").send() {
        Ok(resp) => {
            let data:  serde_json::Value = resp.json().unwrap();
            println!("{:#?}", data);
        },
        Err(err) => eprintln!("{}", err),
    }
}

The output

Object {
    "args": Object {},
    "headers": Object {
        "Accept": String("*/*"),
        "Cookie": String("counter=42"),
        "Host": String("httpbin.org"),
        "X-Amzn-Trace-Id": String("Root=1-65b244fe-37f44f2f5385618e52e9397b"),
    },
    "origin": String("46.120.9.250"),
    "url": String("https://httpbin.org/get"),
}