Rust Error Handling: thiserror, anyhow, and When to Use Each

In this blog post, we’ll explore strategies for streamlining error handling in Rust using two popular libraries: thiserror and anyhow. We’ll discuss their features, use cases, and provide insights on when to choose each library. TL;DR thiserror simplifies the implementation of custom error type, removing boilerplates anyhow consolidates errors that implement std::error::Error While thiserror provides detailed error information for specific reactions, anyhow hides internal details Return Different Error Types from Function Let’s start by creating a function decode() for illustration....

February 6, 2024 · 6 min