How to use anyhow crate

Add anyhow to your Cargo.toml dependencies and use Result<T> as the return type for functions that can fail.

[dependencies]
anyhow = "1"

use anyhow::{anyhow, Result};

fn process_data() -> Result<String> {
    if false {
        return Err(anyhow!("Something went wrong"));
    }
    Ok("Success".to_string())
}

In your main function, use the ? operator to propagate errors automatically, letting anyhow handle the final panic if needed.

Anyhow is a tool that makes handling errors in Rust much easier by letting you write less code. Instead of defining your own error types for every function, you just use a generic error type that works everywhere. Think of it as a universal error catcher that lets you focus on your logic rather than error plumbing.