如何使用Rust从github API获取json?

问题描述

我只想从以下URL获取json。

所以我用了这段代码:

extern crate reqwest;

fn main() -> Result<(),Box<dyn std::error::Error>> {
    let res = reqwest::Client::new()
        .get("https://api.github.com/users/octocat")
        .send()?
        .text()?;
    println!("{}",res);

    Ok(())
}

但是我不知道如何解决该错误:

error[E0277]: the `?` operator can only be applied to values that implement `std::ops::Try`
  --> src\main.rs:19:15
   |
19 |       let res = reqwest::Client::new()
   |  _______________^
20 | |         .get("https://api.github.com/users/octocat")
21 | |         .send()?
   | |________________^ the `?` operator cannot be applied to type `impl std::future::Future`
   |
   = help: the trait `std::ops::Try` is not implemented for `impl std::future::Future`
   = note: required by `std::ops::Try::into_result`

error: aborting due to previous error

For more information about this error,try `rustc --explain E0277`.
error: could not compile `Desktop`.

但是我也可以通过简单的方式获得想要的东西

curl https://api.github.com/users/octocat

我尝试添加use std::ops::Try;,但效果不佳...

解决方法

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