Most Integration Builder users are familiar with Flow Instance variables. However, Connectors also have instance variables. You can see that when you create a Connector instance and click on the Show Optional Fields button as shown below where I entered a JSON object with property myValue:

This json field is essentially a free text field that can be used as a cache for any connector instance details that need to be stored. You can then fetch the connector instance variables in a flow using a Platform API Request with a GET /instances/{instanceId}/configuration as shown below. This can help avoid excessive calls to a backend.

Summary

In this blog, we described Amplify Integration Builder Connector instance variables. We saw how to create the instance variables as JSON objects and how to retrieve the variables in a flow using a Platform API Request: GET /instances/{instanceId}/configuration.