AWS S3 RoutingRule with wildcard condition

Question

I have a set of user folders with the same folder structure, but different content, stored in S3.

/user/userA/application/folder/structure/file.xml
/user/userB/application/folder/structure/file.xml

I would like to redirect the user to a fallback folder, (with fallback content) if the s3 folder structure don't exist for that user yet.

/user-fallback/application/folder/structure/file.xml

I've tried to add a wildcard parameter to my Redirection Rules, but S3 is reading * as a literal

<RoutingRules>
    <RoutingRule>
        <Condition>
            <KeyPrefixEquals>user/*/</KeyPrefixEquals>
            <HttpErrorCodeReturnedEquals>404</HttpErrorCodeReturnedEquals>
        </Condition>
        <Redirect>
            <ReplaceKeyPrefixWith>user-fallback/</ReplaceKeyPrefixWith>
        </Redirect>
    </RoutingRule>
</RoutingRules>

So only urls starting with /user/*/ are being correctly redirected to the user-fallback folder structure.

I have more than 20 users, so creating individual RoutingRules wouldn't work either (S3 has a routing rule limit)

Any ideas?

Answer 1

This should work:

<RoutingRules>
    <RoutingRule>
        <Condition>
            <KeyPrefixEquals>user</KeyPrefixEquals>
            <HttpErrorCodeReturnedEquals>404</HttpErrorCodeReturnedEquals>
        </Condition>
        <Redirect>
            <ReplaceKeyPrefixWith>user-fallback/</ReplaceKeyPrefixWith>
        </Redirect>
    </RoutingRule>
</RoutingRules>