Rust is gaining massive popularity for backend tooling due to its memory safety and speed. However, even safe code can fail due to external factors like network outages or disk space issues.

olic.io provides a minimal way to monitor your Rust binaries. We listen for a heartbeat signal—a simple HTTP GET request—indicating that your rigorous code has completed its execution.

Adding a Heartbeat to Your Rust Binary

Rust’s standard library does not include a high-level HTTP client, so the community standard reqwest crate is the best choice here. It handles the connection details safely and efficiently.

Prerequisites Add reqwest and tokio to your Cargo.toml.

Implementation

use reqwest;
use std::error::Error;

#[tokio::main]
async fn main() -> Result<(), Box<dyn Error>> {
    // Your unique olic.io URL
    let heartbeat_url = "https://api.olic.io/ping/YOUR-ID-HERE";

    // --- YOUR CORE LOGIC HERE ---
    println!("Processing data stream...");
    // ----------------------------

    // Send the success ping
    let client = reqwest::Client::new();
    let res = client.get(heartbeat_url).send().await?;

    if res.status().is_success() {
        println!("Ping sent to olic.io");
    } else {
        eprintln!("Failed to ping monitor");
    }

    Ok(())
}

This integration is lightweight enough that it won’t impact the performance profile of your application, keeping your Recent pings log green and your mind at ease.

Why Rust for Backend Automation

Rust is increasingly used by SaaS teams who need to replace slow Python or Ruby scripts with high-performance binaries. It is excellent for Pulling data from high-throughput APIs or processing large datasets.

The strict compiler prevents many bugs, but it can’t prevent logic errors regarding time or external API failures. Implementing a monitor ensures that your performant Rust tool is actually running when you expect it to.

Learn more about Rust here.