How To Make an HTTP Request in Rust

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How To Make an HTTP Request in Rust?

Are you looking to make an HTTP request in your Rust program? Rust is a powerful systems programming language that provides a lot of control over low-level details, and making an HTTP request is no exception. In this post, we'll go over the basics of making an HTTP request in Rust using the popular reqwest crate.

First, you'll need to add the reqwest crate to your Cargo.toml file:

[dependencies]
reqwest = "0.10"

Next, you'll need to import the crate and its prelude into your Rust program:

use reqwest::prelude::*;

With the reqwest crate imported, you can now make an HTTP request using the get() method. This method takes the URL of the request as its argument, and it returns a Result containing a Response object.

Here's an example:

let res = reqwest::get("https://www.rust-lang.org")
    .expect("request failed");

The Response object contains the response from the HTTP request, including the status code and the body of the response.

You can access these using the status() and text() methods, respectively:

println!("Status: {}", res.status());

let body = res.text().expect("failed to read response body");
println!("Body:\n{}", body);

Alternatively, you can use the json() method to parse the response body as JSON if it is in that format.

That's all there is to making an HTTP request in Rust using the reqwest crate. It's a simple but powerful way to send HTTP requests and work with the responses in your Rust programs.

In addition to the get() method shown above, the reqwest crate also provides other methods for making other types of HTTP requests, such as post(), put(), and delete(). You can also customize the headers and other details of the request using the RequestBuilder struct. For more information, check out the documentation for the reqwest crate.

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