Downloading bulk uploads on non-dev environments

app/controllers/lettings_logs_controller.rb

@@ -137,9 +137,13 @@ class LettingsLogsController < LogsController
   def download_bulk_upload
     bulk_upload = BulkUpload.find(params[:id])
     downloader = BulkUpload::Downloader.new(bulk_upload:)
-    downloader.call
 
-    send_file downloader.file_path, filename: bulk_upload.filename, type: "text/csv"
+    if Rails.env.development?
+      send_file downloader.file_path, filename: bulk_upload.filename, type: "text/csv"
+    else
+      presigned_url = downloader.presigned_url
+      redirect_to presigned_url
+    end
   end
 
 private

app/controllers/sales_logs_controller.rb

@@ -107,9 +107,13 @@ class SalesLogsController < LogsController
   def download_bulk_upload
     bulk_upload = BulkUpload.find(params[:id])
     downloader = BulkUpload::Downloader.new(bulk_upload:)
-    downloader.call
 
-    send_file downloader.file_path, filename: bulk_upload.filename, type: "text/csv"
+    if Rails.env.development?
+      send_file downloader.file_path, filename: bulk_upload.filename, type: "text/csv"
+    else
+      presigned_url = downloader.presigned_url
+      redirect_to presigned_url
+    end
   end
 
 private

app/services/bulk_upload/downloader.rb

@@ -19,6 +19,10 @@ class BulkUpload::Downloader
     file.path
   end
 
+  def presigned_url
+    s3_storage_service.get_presigned_url(bulk_upload.identifier, 60)
+  end
+
 private
 
   def download
@@ -33,6 +37,7 @@ private
   end
 
   def storage_service
+    # or use !Rails.env.development?
     @storage_service ||= if FeatureToggle.upload_enabled?
                            s3_storage_service
                          else