The Rust axum crate provides a fast, low-level web framework for building microservices and APIs. Axum is designed to be easy to use, performant, and composable, meaning you can mix and match components to build a custom web application that meets your needs.
Axum is built on top of Rust's async/await syntax and uses Tokio as its underlying async runtime. This means that Axum is well-suited for building high-performance, non-blocking web services that can handle a large number of concurrent requests.
Axum provides a number of features that make it a powerful tool for building web applications, including:
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Routing: Axum makes it easy to define routes for your web application, allowing you to map URLs to specific functions or handlers.
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Middleware: Axum supports middleware, which are functions that can be run before or after a request is processed. Middleware can be used for things like logging, authentication, and authorization.
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Error handling: Axum provides a flexible error handling system that allows you to handle errors in a way that makes sense for your application.
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Testing: Axum includes tools for testing your web application, making it easy to write automated tests for your code.
Overall, Rust axum is well-suited for building microservices and APIs. If you're looking for a fast, low-level framework that gives you complete control over your web application, then Axum is definitely worth considering.