uploads_controller.rb

class UploadsController < ApplicationController
  def index
    @upload = Upload.new
  end

  def create
    @upload = Upload.new(upload_params)
    if @upload.save
      render json: { message: "success", uploadId: @upload.id }, status: 200
    else
      render json: { error: @upload.errors.full_messages.join(", ") }, status: 400
    end
  end

  def destroy
    @upload = Upload.find(params[:id])
    if @upload.destroy
      render json: { message: "file deleted from server" }
    else
      render json: { message: @document.errors.full_messages.join(", ") }
    end
  end

  private
    def upload_params
      params.require(:upload).permit(:name, :email, :document)
    end
end