We're using Rails and we've hit a bit of a snag when it comes to bulkOperationRunMutation. We get the issue that's invalid JSON.
The file we're uploading definitely is JSONL
We get a response just fine, parse the Key etc. Nothing throws an error until the last step where it says that file is expected to be JSONL. Any help would be highly appreciated.
Are you including the MimeType of text/jsonl in your request? Please see the example call at the bottom of this page: https://shopify.dev/api/usage/bulk-operations/imports#generate-the-uploaded-url-and-parameters