Last Updated: 2023-12-03
After upgrading to
ActiveStorage, I had an issue in my tests WRT to
communicating with an external service. This external service, which was
important to test in my e2e tests as it had privacy concerns, had an endpoint
that accepted a URL from my main app and visited it to download some data.
Unfortunately, in the test/dev environment, visiting external URLs has issues. For one, if the server is remote (i.e. not in your repo), then it has to call a URL either on localhost (not possible without tunneling) or use an intermediary URL (e.g. s3) etc.
Ultimately, I decided to just push the data to the remote URL instead of asking it to pull it.