Azure Functions proxies is now generally available. This is a capability that will make it easier to author serverless APIs and implement microservices architectures using Azure Functions. We've incorporated your feedback from the preview release and have added new functionalities that will make Azure Functions Proxies even better. For example, the new portal experience for Functions Proxies will include these new features:
- Request and response overrides can now be set in the portal.
- Modify input request to send different HTTP verbs, headers, or query parameters to a backend service.
- Replace backend response status code, headers, and body.
Read more details at this blog post.
Source: Azure Roadmap