Question

You are building a custom connector for an internal REST API. The API expects a flat JSON payload with fields like customerName and orderTotal at the root level. However, your Power Automate makers want to work with a nested object model where these fields appear under a 'customer' and 'order' object respectively. You need the connector to accept the maker-friendly nested schema in Power Automate but send the flattened structure the backend API requires, without modifying the backend API or writing external code. What should you do?

Accepted Answer

Define the operation request body with the nested schema, then use the connector's custom code (C# script) feature to transform the request into the flat structure before it is sent to the backend.

Answer

Define the operation with the nested schema and add a policy template of type 'Convert an object to an array' to reshape the request body.

Answer

Create an Azure API Management instance in front of the REST API and configure an inbound transformation policy, then import the connector from API Management.

Answer

Define the request body as raw string and instruct makers to manually build the flattened JSON in each flow using expressions.