Summary
This user story describes a use case where user needs Data Index on Kubernetes with Postgresql database and has multiple workflows that need to work with data index service.
The workflows should not be trivial and have to include complex behaviors - such as callbacks.

Procedures
These are the steps this JIRA implements:

• Prerequisite
• Use Case 2 - Multiple Workflows with singleton Data Index Service

Goal
As a serverless logic user
I want to have singleton Data Index service with Posresql database and multiple workflows
that are configured to register events in the Data Index service.
I want to be able to call/start workflows.
I want to be able to check variables using the GraphiQL service.

Acceptance criteria
An example showcasing this use case is implemented in example repository.
User is able to perform the use case.
No blocker or critical issues are open.