Using React, AWS, Graphql, Dynamodb, how can I allow a user to share a link which will allow anyone who clicks on that link to view that user’s data?

I am new to AWS so any help will be appreciated!

In many applications I see a feature which allows a logged in user to generate a shareable link which when clicked by anyone would display the user’s data.

I was able to create unique links using the cognito user ID of a logged in user, for unauth access I created a AWS_IAM role. However, I am unable to fetch the data.

It just returns an empty string. Just for additional information, I am using the index in dynamodb to implement fine grained access control.

        try {
            const starsData = await API.graphql({
              query: getNode,
              authMode: 'AWS_IAM',
          });