http-signature-normalization/http-signature-normalization-reqwest/examples/client.rs

use http_signature_normalization_reqwest::prelude::*;
use reqwest::{header::DATE, Client};
use sha2::{Digest, Sha256};
use time::OffsetDateTime;

async fn request(config: Config) -> Result<(), Box<dyn std::error::Error>> {
    let digest = Sha256::new();

    let response = Client::new()
        .post("http://127.0.0.1:8010/")
        .header("User-Agent", "Reqwest")
        .header("Accept", "text/plain")
        .header(
            DATE,
            OffsetDateTime::now_utc().format("%a, %d %b %Y %H:%M:%S GMT"),
        )
        .signature_with_digest(config, "my-key-id", digest, "Hewwo-owo", |s| {
            println!("Signing String\n{}", s);
            Ok(base64::encode(s)) as Result<_, MyError>
        })
        .await?;

    let body = response.bytes().await.map_err(MyError::Body)?;

    println!("{:?}", body);
    Ok(())
}

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    std::env::set_var("RUST_LOG", "info");
    pretty_env_logger::init();

    let config = Config::default().require_header("accept");

    request(config.clone()).await?;
    request(config.mastodon_compat()).await?;
    Ok(())
}

#[derive(Debug, thiserror::Error)]
pub enum MyError {
    #[error("Failed to create signing string, {0}")]
    Convert(#[from] SignError),

    #[error("Failed to send request")]
    SendRequest(#[from] reqwest::Error),

    #[error("Failed to retrieve request body")]
    Body(reqwest::Error),
}