How should we approach integrating with an external system via a REST API?
What approach and architecture would you choose for integrating Salesforce REST with an external system? The operations to be performed are GET and POST. The main question is whether APEX alone can handle all of this, or should we use Flow? Where should the Bearer Token be stored? How should we authenticate with the external system—using APEX or an External Service?
What are your thoughts and approaches to this topic?