Azure API management - how to access product information - azure

Question

In APIM, I am trying to access the Product information at API level policy, as i have to execute some logic based on product name. I am using the below code
<policies>
<inbound>
<set-variable name="ProductName" value="#{
return context.Product.Name;
}" />
But, when trying to post request from postman, i can see the below exception in trace.
{
source: "set-variable",
timestamp: "2020-08-19T14:42:24.4936554Z",
elapsed: "00:00:00.0358409",
data:- {
messages:- [
-{
message: "Expression evaluation failed.",
expression: " return context.Product.Name; ",
details: "Object reference not set to an instance of an object."
},
"Expression evaluation failed. Object reference not set to an instance of an object.",
"Object reference not set to an instance of an object."
]
}
}
Why it is null ? is this the case, that i can't access the property in inbound scope. Need guidance. Or, is there any other way i can access the Product.Name property.
Thank you.

Answer 1

You can get the Product Name with #(context.Product.Name).
<inbound>
<base />
<set-variable name="aaa" value="#(context.Product.Name)" />
<set-body template="liquid">
{
"success": true,
"var1": {{context.Variables["aaa"]}}
}
</set-body>
</inbound>
In test, set the product name as Starter and you will get the snapshot as below.