23.5.2.1. 查询 GitHub API

reqwest-badge serde-badge cat-net-badge cat-encoding-badge

使用 reqwest::get 查询 点赞的用户 API v3,以获取某个 GitHub 项目的所有点赞用户的列表。使用 Response::json 将响应信息 reqwest::Response 反序列化为实现了 serde::Deserialize trait 的 User 对象。

tokio::main 用于设置异步执行器,该进程异步等待 reqwest::get 完成,然后将响应信息反序列化到用户实例中。

use serde::Deserialize;
use reqwest::Error;

#[derive(Deserialize, Debug)]
struct User {
    login: String,
    id: u32,
}

#[tokio::main]
async fn main() -> Result<(), Error> {
    let request_url = format!("https://api.github.com/repos/{owner}/{repo}/stargazers",
                              owner = "rust-lang-nursery",
                              repo = "rust-cookbook");
    println!("{}", request_url);
    let response = reqwest::get(&request_url).await?;

    let users: Vec<User> = response.json().await?;
    println!("{:?}", users);
    Ok(())
}