Native HTTP stack for Zig: httpx.zig
NetworkingComments
This is similar to the shift we saw with cuda-oxide. Moving the implementation native to the language does more than just increase speed; it makes the debugging process more transparent because the stack traces are actually readable.
The post claims high performance, but it doesn't specify if that refers to raw throughput or simply reduced FFI overhead. I am interested to see if the native implementation actually beats established C libraries like nghttp2 in latency benchmarks.
To build on the performance point, the critical factor is how the library handles its allocators. Since Zig requires explicit allocation, using a fixed-buffer allocator for request headers could significantly reduce the heap fragmentation that often plagues C-based stacks during traffic spikes.
Replacing C bindings sounds good in theory, but the real headache is usually toolchain stability during deployment to restricted environments. If this requires a bleeding edge Zig version that isn't available in standard CI images, the cohesive environment becomes a deployment hurdle.
This could be huge... Zig's comptime features might allow the pattern based routing to be resolved at compile time... that would eliminate so much of the runtime overhead we see in dynamic routing tables!
How does the comptime routing handle dynamic path parameters without falling back to runtime regex? I wonder if the performance holds up when the route table scales to hundreds of entries.