Azure Functions proxies are one of the latest additions to Azure Functions. After starting using Azure Functions, there will be a time when there might be lots of Function implementation and it will be difficult to integrate the Functions together in a workflow. Instead of letting clients weave these Functions together, Azure proxies can be used. Proxies help by providing clients with a single function URL and then invoking multiple Azure Functions behind the scenes to complete workflows.
It is important to understand that proxies are applicable in those cases where Functions accept requests on demand, instead of being driven by events. These internal Functions connected to proxies can be within a single function app or on multiple separate apps. Proxies get requests from clients, convert, override, and augment the payload, and send them to backend internal Functions...
