Building an XR

It’s time to go through a hands-on journey to build an XR from scratch. We will start with writing down the infrastructure API requirement at a high level, then provide an API specification with XRD and finally provide an implementation with a composition. We will cover the API requirement in such a way as to learn most of the configuration discussed in this chapter.

The infrastructure API requirement

We will develop an API to provision a database from Google Cloud. The following are the compliance, architecture, and product team’s requirements:

• Compliance policy: The provisioning should be done in the us-central region to comply with the data storage regulations from the government.
• Architecture policy: We should have two tiers of the database. For small, the disk size should be 20 GB, and it should be 40 GB for big.
• Architecture policy: The small tier’s virtual machine should be db-g1-small, and db-n1-standard-1 for the big...