# Examples Sample APIs following the guidelines are available at [adidas-group GitHub](https://github.com/adidas-group). The samples include the following: ### [Simple API](https://github.com/adidas-group/demo-simple-api) Very simple API including implementation, testing, and full CI/CD lifecycle. ### [Approval API](https://github.com/adidas-group/demo-approval-api) Real-world API with state transition, API key client app authentication, exposed via API management. ### [Orders API](https://github.com/adidas-group/demo-orders-api) Sample API used as the template for newly created projects at Apiary. ### [Appointment Service](https://github.com/adidas-group/demo-appointment-service) Demo API, including implementation and testing used during training. ### [Complex Search Parameters](https://github.com/adidas-group/demo-complex-search) Sample API showcasing description of complex query parameter rules.