cartographer/src/main.rs

use reqwest::header;
use reqwest::{Client, Error};
use std::env;

static APP_USER_AGENT: &str = concat!(env!("CARGO_PKG_NAME"), "/", env!("CARGO_PKG_VERSION"),);

fn create_client() -> Result<Client, Error> {
    let token =
        env::var("CANVAS_SECRET").expect("Canvas API key is not defined in the environment.");

    let mut headers = header::HeaderMap::new();
    headers.insert(
        header::AUTHORIZATION,
        format!("Bearer {}", token).parse().unwrap(),
    );
    reqwest::Client::builder()
        .user_agent(APP_USER_AGENT)
        .default_headers(headers)
        .build()
}

async fn get_request() -> Result<(), reqwest::Error> {
    let response = create_client()?
        .get("https://ucsb.instructure.com/api/v1/courses")
        .send()
        .await?;

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

    let body = response.text().await?;
    println!("Body:\n{}", body);

    Ok(())
}

#[tokio::main]
async fn main() -> Result<(), Error> {
    get_request().await?;
    Ok(())
}