This is a simple package to convert shapefiles to GeoJSON.
npm install shapefile-to-geojson
const shapefileToGeojson = require("shapefile-to-geojson");
const geoJSON = await shapefileToGeojson.parseFiles("./path/to/shapefile.shp", "./path/to/dbf.dbf");
const geoJSON = await shapefileToGeojson.parseFolder("./path/to/files"); // This directory should include 1 `shp` & 1 `dbf` file