multipart-form-parser.js

Simple parser for form data.

Documentation

Usage is quite simple, example with express.js

import FormMultipartParser from "@maksims/form-multipart-parser.js";

app.post("/you/route", (req) => {
    const formMultipartParser = new FormMultipartParser();

    req.on("data", (buffer) => {
        formMultipartParser.parse(buffer);
    });

    req.on("end", () => {
        formMultipartParser.fields.forEeach(field => {
            // do you thing with field data
        });
    });
});

This library does not make any data processing and validation and save data and metadata as raw buffer, here a example how you can process files uploading.

    req.on("end", () => {
        formMultipartParser.fields.forEeach(field => {
            const mimetypeBuffer = field.mimetype // Raw buffer
            const mimetypeStr = field.mimetype.toString("ascii");

            if(mimetypeStr === "video/mp4") {
                // Data is saved as array of chunks while server does not accept incoming data
                // as a single chunk.
                const buffer = Buffer.concat(field.chunks);
                writeFile("/you/path", buffer);
            }
        });
    });