HTTP Parser

This library parses HTTP protocol for requests and responses. It was created to replace http_parser.c since calling C++ functions from JS is really slow in V8. However, it is now primarily useful in having a more flexible/tolerant HTTP parser when dealing with legacy services that do not meet the strict HTTP parsing rules Node's parser follows.

This is packaged as a standalone npm module. To use in node, monkeypatch HTTPParser.

// Monkey patch before you require http for the first time.
process.binding('http_parser').HTTPParser = require('http-parser-js').HTTPParser;

var http = require('http');
// ...

Testing

Simply run npm test. The tests are copied from node and mscedex/io.js, with some modifcations.

Status

This should now be usable in any node application, it now supports (nearly) everything http_parser.c does while still being tolerant with corrupted headers, and other kinds of malformed data.

Node versions

http-parser-js should work via monkey-patching on Node v6-v11, and v13-14.

Node v12.x renamed the internal http parser, and did not expose it for monkey-patching, so to be able to monkey-patch on Node v12, you must run node --http-parser=legacy file.js to opt in to the old, monkey-patchable http_parser binding.

Standalone usage

While this module is intended to be used as a replacement for the internal Node.js parser, it can be used as a standalone parser. The standalone-example.js demonstrates how to use the somewhat awkward API (coming from compatibility with the Node.js internals) to parse HTTP from raw Buffers.

HTTP Parser

Testing

Status

Node versions

Standalone usage

License

Current Tags

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