APIGEE API proxy not picking up the `if-none-match` attribute from headers

[AasthaTalwaria]

Hi,

I wanted to implement ETag in one of the APIs in my API proxy. I figured out the integration of ETag in the base service. But, unable to get the `if-none-match` key in the headers from APIGEE layer.

On tracing the API from APIGEE, looks like it is not picking the `if-none-match` key (on the first step I didn't see the key in the request headers.)

Please help me with either reading the `if-none-match` key from headers or supporting complete ETag implementation with APIGEE configuration.

[API-Evangelist]

Unsure but can you just self diagnose if you can make sure if incoming request has the header which you are expecting it will show up in apigee trace in header section but looking at your trace there is no such header exists meaning incoming request is missing it..Just test using any sample rest client and add header/value and trace it..