impit is a rust library that allows you to impersonate a browser and make requests to websites. It is built on top of reqwest, rustls and tokio and supports HTTP/1.1, HTTP/2, and HTTP/3.

The library provides a simple API for making requests to websites, and it also allows you to customize the request headers, use proxies, custom timeouts and more.

use impit::impit::Impit;
use impit::emulation::Browser;

#[tokio::main]
async fn main() {
   let mut impit = Impit::builder()
       .with_browser(Browser::Firefox)
       .with_http3()
       .build();

   let response = impit.get(String::from("https://example.com"), None).await;

   match response {
       Ok(response) => {
           println!("{}", response.text().await.unwrap());
       }
       Err(e) => {
           println!("{:#?}", e);
       }
   }
}

If you are looking for a command-line tool that allows you to make requests to websites, check out the impit-cli project.

If you'd prefer to use impit from a Node.js application, check out the impit-node folder, or download the package from npm:

npm install impit

The interface is the same as the native fetch.

import { Impit } from 'impit';

// Set up the Impit instance
const impit = new Impit({
    browser: "Chrome", // or "Firefox"
    proxyUrl: "http://localhost:8080",
    ignoreTlsErrors: true,
});

// Use the `fetch` method as you would with the built-in `fetch` function
const response = await impit.fetch("https://example.com");

console.log(response.status);
console.log(response.headers);
console.log(await response.text());
// console.log(await response.json());
// ...

Technically speaking, the impit project is a somewhat thin wrapper around reqwest that provides a more ergonomic API for making requests to websites. The real strength of impit is that it uses patched versions of rustls and other libraries that allow it to make browser-like requests.

Note that if you want to use this library in your rust project, you have to add the following dependencies to your Cargo.toml file:

[dependencies]
impit = { git="https://github.com/apify/impit.git", branch="master" }

[patch.crates-io]
rustls = { git="https://github.com/apify/rustls.git" }
h2 = { git="https://github.com/apify/h2.git" }

Without the patched dependencies, the project won't build.

Note that you also have to build your project with rustflags = "--cfg reqwest_unstable", otherwise, the build will also fail. This is because impit uses unstable features of reqwest (namely http3 support), which are not available in the stable version of the library.