This video is an introduction of Hasura capabilities of adding business logic to your CRUD API through two different methods: Remote Schemas and Event triggers. Remote schemas will basically give you an ability to stitch GraphQL schema, auto-generated by Hasura to any different GraphQL schema of maybe your own server or external GraphQL API. The other method is to use Hasura eventing system to add serverless functions triggered on database events. Both of these methods will be explained in more detail in future section of the course