Hi Kervin, Is the csv file dynamically uploaded or part of your source code? If you deploy it with your source code, the containing folder may be read-only (TODO: find reference). Can you check the log and share the error message you're getting? Note...

Hi,You can return a standard HTTP response and specify your image mime type. The framework you use should let you do it idiomatically. Here is an example in Python:https://codelabs.developers.google.com/codelabs/cloud-functions-python-http#5

Hi, Could it be due to the file folder location? With Cloud Functions and App Engine, you can only write files under the in-memory temporary ("/tmp") filesystem. May using os.tmpdir() - or equivalent, I'm not a Node.js dev - as the root folder solve ...