Hertz is a high-performance Go HTTP framework designed for building scalable microservices, RESTful APIs, and AI applications. It functions as a high-performance web server and a communication framework for microservices, utilizing non-blocking I/O and zero-copy memory management to handle high-concurrency traffic.
The project distinguishes itself through a microservices communication toolkit that supports high-efficiency remote procedure calls via gRPC and Thrift protocols. It implements an asynchronous middleware engine based on an onion model, allowing for a pluggable request-response pipeline.
The framework covers a broad range of capabilities, including trie-based request routing, request parameter validation, and multi-format response rendering. It provides integrated service governance and discovery, observability tools for distributed tracing and metrics, and automated API documentation via the Swagger standard.
Developer productivity is supported through interface-driven code generation for service boilerplate and network-free unit testing for request handlers.