Making a batch request to get the download links for attachments returns a 200 response with the expected links, however every link except the last one in the batch gives this error:
SignatureDoesNotMatchThe request signature we calculated does not match the signature you provided. Check your key and signing method.
This is the Javascript code I am using. A workaround would be to not use batching, but as it uses 10x fewer requests, it would be good if it worked for this
This method might associate a KEY + TOKEN with every single request in the batch, whereas your current method associates a KEY + TOKEN with the request to submit the batch.
Hey @sunnyape, I did have the same problem with the url auth instead of headers. The problem is not the trello auth, as the batch gives me a 200 for all of the urls in the request object. It is a problem with Trello’s S3 authorisation I believe.
By the way, this blog post explains why we should use the “Authorization” header instead of url authentication.