Upload a whole directory through an HTML form

in case you use dropzone: dropzone scans files inside directory droped and correspondent sub directorys making a request to backend per file. this file original fullpath is catched

https://www.dropzonejs.com/#event-sending

PD: used lodash (_.without) for the example:

sendingEvent(file, xhr, formData){

    if (file.fullPath) { //file.fullPath only exist if file is inside a directory
        var directoryStructure = _.without(file.fullPath.split("/"), file.name);
        formData.append('directory-structure', directoryStructure.join(",") );
    }
}

you has received in request:

• directory-structure : path
• file: binary

now you can work with this folder name in your backend. dropzone can make multiple uploads separatly without issues and works fine for your use case.