SignatureDoesNotMatch: The request signature we calculated does not match the signature you provided. Check your key and signing method.

Same code working locally, but not on a remote server. Migrating aws-sdk to @aws-sdk/client-s3

Using AWS S3 functionality in our node application, this issue suddenly broke our functionality for no plausible reason. The strange aspect was that the same thing worked correctly on the local server, but any remote server would throw this error.

[Read More]
When you purchase through links on, I may earn an affiliate commission.