Salesforce Advance Dev Class 10, Integration REST Expose and Consume

1. Integration REST Expose and Consume Overview
2. Consume the REST service from Different Salesforce Org. ideally its like SF to SF Integration, but the same logic can be applied from Third party(Consumer) to SF(Producer).
3. Consume the service with retrieved result insert the records to Salesforce consumer org(Generally this operation is done by third party who are consuming it like .net/java etc.)