fast-http

Benchmarks show it parses HTTP headers 1.25x faster than a C equivalent, thanks to zero-allocation parsing and optimized structure classes, as highlighted in the performance section.

Handles both HTTP requests and responses with a single parser, simplifying code for bidirectional communication, as noted in the features list.

Callback-driven approach allows incremental processing of HTTP bodies via events like body-callback, ideal for handling large or continuous data streams without memory overhead.

Avoids storing bodies in memory by design, using pointers in callbacks and omitting :store-body options, which is crucial for high-throughput applications as mentioned in the API differences.