GitHub - mjackson/multipart-parser: A fast, efficient parser for multipart streams in any JavaScript environment
Briefly

The parseMultipartRequest function automates validation, boundary extraction, and parsing of fields/files in multipart/form-data requests, yielding each part as a MultipartPart object for further processing, making it ideal for handling file uploads in web servers.
The library can be installed from npm or JSR, supporting environments beyond Node.js, with different modules catering to fetch API or node-specific APIs like http.IncomingMessage and buffer.Buffer, making it adaptable to various JavaScript environments.
Read at GitHub
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