AWS S3: The bucket you are attempting to access must be addressed using the specified endpoint

Question

It seems likely that this bucket was created in a different region, IE not us-west-2. That's the only time I've seen "The bucket you are attempting to access must be addressed using the specified endpoint. Please send all future requests to this endpoint."

US Standard is us-east-1

Check your bucket location in the console, then use this as reference to which endpoint to use: http://docs.aws.amazon.com/general/latest/gr/rande.html#s3_region

I was facing a similar error because the bucket was in region us-west-2 and the URL pattern had bucketname in the path. Once, I changed the URL pattern to have bucketname as URL subdomain to grab the files and it worked.

For eg previous URL was

https://s3.amazonaws.com/bucketname/filePath/filename

Then I replaced it as

https://bucketname.s3.amazonaws.com/filePath/filename

In my case, I selected wrong RegionEndpoint. After selecting the correct RegionEndpoint, it started working :)

For many S3 API packages (I recently had this problem the npm s3 package) you can run into issues where the region is assumed to be US Standard, and lookup by name will require you to explicitly define the region if you choose to host a bucket outside of that region.

For ppl who are still facing this issue, try adding s3_host as follows to the config hash

   :storage => :s3,
   :s3_credentials => {:access_key_id => access key,
   :secret_access_key => secret access key},
   :bucket => bucket name here,
   :s3_host_name => s3-us-west-1.amazonaws.com or whatever comes as per your region}.

This fixed the issue for me.

During the creation of S3Client you can specify the endpoint mapping to a particular region. If default of s3.amazonaws.com then bucket will be created in us-east-1 which is North Virginia.

More details on S3 endpoints and regions in AWS docs: http://docs.aws.amazon.com/general/latest/gr/rande.html#s3_region.

So, always make sure about the endpoint/region while creating the S3Client and access S3 resouces using the same client in the same region.

If the bucket is created from AWS S3 Console, then check the region from the console for that bucket then create a S3 Client in that region using the endpoint details mentioned in the above link.