Azure Functions - default query parameters value for testing

Question

Hi, I have an Azure Function and I want to set default query string parameters for testing via Azure Portal.

Is there a way to setup this?
thanks
Oliver

Answer 1

it is probably possible to provision default query string params via ARM template - try to set parameters manually via portal UI like you did and export function app's ARM template - it may contain these values there. It is also possible to set default params by changing C# code:

string foo = req.GetQueryNameValuePairs().FirstOrDefault(q => string.Compare(q.Key, "foo", true) == 0).Value;  
if (string.IsNullOrEmpty(foo))  
{  
    foo = Environment.GetEnvironmentVariable("foo", EnvironmentVariableTarget.Process);  
}  

In this example if param is missing in query string it will be read from app settings (can be set from Azure portal: Function app > Configuration > Application Settings).