Hello Martin Kallukalam,
Welcome to the Microsoft Q&A and thank you for posting your questions here.
Problem
I understand that you could not find any documentation on IResponse as an example of some of the things you do as a policy writer in Azure API Management, and you would like to know how you can find all undocumented things.
Solution
To solve this challenge, I will use your example for the same. In the case of the IResponse
interface and all similar objects in Azure API Management (APIM) policies can be tricky to find in the documentation, as they are often used in inline policy expressions and not explicitly documented as standalone objects.
How to Discover Undocumented Features
- Start with the official Azure API Management documentation - https://learn.microsoft.com/en-us/azure/api-management/, which includes policy references, samples, and tutorials with other links.
- Engage with the Azure community through forums like Stack Overflow, Microsoft Q&A, and GitHub discussions. Often, developers share insights and undocumented features.
- Use the Azure Portal's policy editor, which provides IntelliSense and suggestions when writing policies. This can help you discover properties and methods available for objects like
IResponse
. - Create test APIs and use policies to experiment with different expressions and objects. Log the outputs to understand the structure and available properties.
- Microsoft Learn offers courses and modules on Azure API Management. Additionally, the documentation often includes feedback and Q&A sections as you are here is a powerful community where undocumented features might be discussed.
You can effectively discover and leverage undocumented features in Azure API Management using above steps and combining the response
variable holds an object, by access their status
property.
For example, of how you might use the IResponse
object in a policy expression:
<send-request mode="new" response-variable-name="response">
<set-url>https://api.example.com/resource</set-url>
</send-request>
<choose>
<when condition="@(context.Variables["response"].status == 200)">
<set-header name="X-Success" exists-action="override">
<value>Success</value>
</set-header>
</when>
<otherwise>
<set-header name="X-Failure" exists-action="override">
<value>Failure</value>
</set-header>
</otherwise>
</choose>
The above response
variable holds an IResponse
object, and we access its status
property.
Accept Answer
I hope this is helpful! Do not hesitate to let me know if you have any other questions.
** Please don't forget to close up the thread here by upvoting and accept it as an answer if it is helpful ** so that others in the community facing similar issues can easily find the solution.
Best Regards,
Sina Salam