The API gateway enables you to easily expose your actions as RESTful endpoints. You can assign actions to specific endpoints. You could even have verbs (get, put, post, delete) from the same endpoint assigned to different actions.
Packages for Common Tasks
A package combines the actions and event-feed triggers necessary to accomplish a common set of tasks. For example, the IBM Cloudant® package provides two actions, read and write, and one trigger feed called changes. The changes feed causes triggers to be fired when documents are added to the specified Cloudant database. Some other packages automatically available with IBM Cloud Functions include Push Notifications (for mobile apps), Message Hub, IBM Watson®, The Weather Company®, Slack, and GitHub.