UploadService

new UploadService(server, route, upload_directory, upload_link, callbackopt)

Description:

• Implements a file upload of the server

  • A POST service is attached to the given route.

  • When an upload post is sent on the given route for a file of name $filename.$extension

    • The file is stored with the path $uploadPath=$upload_directory/$now-$filename.$extension on the server
      • where $now stands for the file creation number of milliseconds elapsed since January 1, 1970 00:00:00 UTC.

  • On success the original page (via the header referer value) is reloaded, adding a upload-path=$file-path parameter to the query.

  • On the client side it has to be implemented via a construct of the form:

  <form action='$upload-service-url' method='post' encType='multipart/form-data'>
   <input type='file' name='uploadFile'/> <input type='submit'/>
  </form>
  

  where the name='uploadFile' reference is mandatory.

  • On the client side a construct of the form:

    let uploadPath = new URLSearchParams(window.location.search).get("upload-path");
    if (uploadPath != undefined)
      console.log("The file ``" + uploadPath + "´´ has been uploaded");
  

  can be used to detect if the file has been properly loaded.

Parameters:

Name	Type	Attributes	Default	Description
server	express			The express server mechanism.
route	string		/upload	The service route.
upload_directory	string		./upload	The directory storing the uploaded files.
upload_link	string			If defined a link of path $upload_directory/$upload_link is created towards the last uploaded file.
callback	callback	<optional>	function(uploadPath){}	The callback called after uploading.