A tutorial was presented on building a web application using the OCEAN stack (Ottoman.js, Couchbase Server, Express Framework, Angular, and Node.js) and the CEAN stack (Couchbase, Express Framework, Angular, and Node.js). The tutorial covered creating an API with Ottoman.js, then using N1QL for the second example. Both examples included a client frontend built in Angular, which interacted with the backend APIs to create, read, update and delete data stored in Couchbase Server. The OCEAN stack was used as the first example, while the CEAN stack was used as the second example.