BUG: Couldn't upload files to S3. Open an issue on Github and contact the repo owner.

[nelsonic]

Getting the following error when attempting to upload on: https://imgup.fly.dev/liveview

Couldn't upload files to S3. Open an issue on Github and contact the repo owner.

@LuchoTurtle can you please investigate why if/when you have time? Thanks. 🙏

Note: this is almost certainly related to the work done for the "Edge Cases" PR: #86 / #69
The tests all pass on that branch so either the LiveView upload is insufficiently tested or the tests are a false positive. 💭

[LuchoTurtle]

I don't believe this error was introduced because of the changes made in #86. Deployment only occurs when pushed to the main branch and the PR is still open.

The tests do pass on the branch but this error is highly likely an issue with environment variables not being properly set on either during the deployment phase or on Phoenix (maybe using get_env/2 is related to this problem).
The tests assume (and inclusively only succeed) if the env variables are properly set, which is the case when Phoenix runs in the test environment. Our issue is highly likely a faulty production environment, which is something that isn't meant to be tested in unit tests, so even if there are "false positives", it's not related to this.

I'll take a look into this. Because you've changed the env variables of the bucket names, I'm temporarily using both variants to discard this possibility.

In fact, the error that occurs (image below)...

indicates that the URL is not being formed correctly. Instead of being {bucket}.s3-eu-west-3, it's returning .s3-eu-west-3, which is an invalid URL, meaning it's a problem with env variables.

imgup/lib/app_web/live/imgup_live.ex

Lines 20 to 49 in 8ee1a39

	defp presign_upload(entry, socket) do
	uploads = socket.assigns.uploads
	bucket_original = Application.get_env(:ex_aws, :original_bucket)
	bucket_compressed = Application.get_env(:ex_aws, :compressed_bucket)
	key = Cid.cid("#{DateTime.utc_now() |> DateTime.to_iso8601()}_#{entry.client_name}")
	config = %{
	region: System.get_env("AWS_REGION"),
	access_key_id: System.get_env("AWS_ACCESS_KEY_ID"),
	secret_access_key: System.get_env("AWS_SECRET_ACCESS_KEY")
	}
	{:ok, fields} =
	SimpleS3Upload.sign_form_upload(config, bucket_original,
	key: key,
	content_type: entry.client_type,
	max_file_size: uploads[entry.upload_config].max_file_size,
	expires_in: :timer.hours(1)
	)
	meta = %{
	uploader: "S3",
	key: key,
	url: "https://#{bucket_original}.s3-#{config.region}.amazonaws.com",
	compressed_url: "https://#{bucket_compressed}.s3-#{config.region}.amazonaws.com",
	fields: fields
	}
	{:ok, meta, socket}
	end

[nelsonic]

Confirmed working again:
https://imgup-original.s3-eu-west-3.amazonaws.com/zb2rhnhvt7sp8BrXPiM8T1EbKLpZjDmdczYx88vjhXgQZhiZK