Explanation/Reference:
Explanation:
Resource tokens provide access to the application resources within a database. Resource tokens:
Provide access to specific collections, partition keys, documents, attachments, stored procedures, triggers, and UDFs.
Are created when a user is granted permissions to a specific resource.
You can use a resource token (by creating Cosmos DB users and permissions) when you want to provide access to resources in your Cosmos DB account to a client that cannot be trusted with the master key.
Scenario: Security and Personally Identifiable Information (PII)
Access to the analysis results must be limited to the specific customer account of the user that

originally uploaded the documents.
Reference: https://docs.microsoft.com/en-us/azure/cosmos-db/secure-access-to-data#resource-tokens