We can publish an API in the portal and there is a sample Standard Policy Template Fragment - API Key. Tried to create an app and it seems it will generate a pair of API Key and Secret under OAuth , e.g.
API Key (Client ID): l7cc9ffcd670c04fb5b0becf18dd5f1cddShared Secret (Client Secret): 2e59f012d2ed4b92bf7d1628f74be44c Not sure why we need to provide callback / redirect URL(s) and Scope info
But the issue is that when I using a REST client to call the API, it always failed as "Invalid API Key" even we clearly put in into the header as apiKey.
Any documentation and sample how to use API key when an API is published by the Portal.
Any simple step by step guide?
Thanks in advance.