#1031 - OIC Integration Basics - Lab3

Introduction

Lab 3 covers invoking the createOrder integration DB via its REST api. It also discusses logging/tracing and basic OIC error handling.

Let's look again at the Endpoint Metadata for the lab2 integration - 

We'll take the endpoint URL and invoke this from Postman. Finally, we'll look at OIC error handling - both at global and scope level - 

Lab 3 

Invoking App Driven Integrations

Successful call from Postman - so what did I need to configure here? Let's start with the REST connection security definition - OAuth is specified, so this is what we have to leverage from our client, in my case, Postman - As you can see, I have specified OAuth client credentials. So I need an app that provides me with such. Here I need to go to the OCI console - 
There will be an entry here for your OIC service - the name of your service is shown in the About box in the OIC Designer - 
Clicking on the link for this I entry, I see - This is the default OAuth configuration, auto-created for this instance. We could use this, however, it is best practice to create what's known as an Integration Application for this OIC instance -

I add a name and description and then click Next - 
Now to adding resources - We will add the scopes for the OIC instance - select the instance and click Add - 

Save the client id and secret that has been generated for you - Back to Postman - I also need to enter the Access Token URL - this is in the format - https://yourIDCSURL.identity.oraclecloud.com/oauth2/v1/token
Finally, ensure you have activated the confidential app - Get a new access token in Postman - Use the token and test - 

OIC Logging / Tracing