llhttp VS node

In the source code of the Node.js opensource project, lib folder contains JavaScript code, mostly wrappers over C++ and function definitions. On the contrary, src folder contains C++ implementations of the functions, which pulls dependencies from the V8 project, the libuv project, the zlib project, the llhttp project, and many more - which are all placed at the deps folder.

Some useful libraries include nghttp2 for HTTP/2 and llhttp for HTTP/1.1. Both are network stack and TLS implementation agnostic.

There is a HTTP parser directly bundled in node (https://github.com/nodejs/llhttp)

Those wasm blobs are Node's own llhttp https://github.com/nodejs/llhttp in wasm to speed up HTTP parsing.

The question is totally legitimate but please assume core doesn't make "load random binary" level kind of goofs :)

For HTTP, you have to look at HTTP parser. For example, https://github.com/nodejs/llhttp is used in NodeJS.

Whoa, I didn't know that! But yeah, it seems like https://github.com/nodejs/http-parser is based on nginx. It now uses https://github.com/nodejs/llhttp but has some of the same legacy.

On the other hand, deno's HTTP stuff is built on top of Hyper, a Rust library https://github.com/hyperium/hyper

No, parsing HTTP/1.x is a nightmare and definitely not simple. It wasn't even particularly well defined until 2014 when the original RFCs were modernized, and even now there are bugs reported in HTTP parsers all the time.

Node.js came out in 2009, a full ten years after HTTP/1.1 (RFC 2068) and it's original http-parser is full-on spaghetti code, doesn't conform to the RFCs for performance reasons, and is considered unmaintainable by the author of it's replacement[0]

[0] https://github.com/nodejs/llhttp

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