firestore as a data store

[doi-t]

• Youtube: Get to Know Cloud Firestore
• https://firebase.google.com/docs/firestore/quickstart
• https://godoc.org/cloud.google.com/go/firestore (client library)

[doi-t]

If you are using a gRPC-supported language, consider using the RPC API rather than the REST API. https://firebase.google.com/docs/firestore/use-rest-api

• https://firebase.google.com/docs/firestore/reference/rpc/
• https://grpc.io/docs/tutorials/basic/go.html#creating-a-stub

[doi-t]

https://firebase.google.com/docs/firestore/quickstart is already outdated.

Run go get cloud.google.com/go/firestore instead of go get firebase.google.com/go.

Follow https://godoc.org/cloud.google.com/go/firestore instead of https://firebase.google.com/docs/firestore/quickstart.

example: https://github.com/GoogleCloudPlatform/google-cloud-go/blob/master/firestore/examples_test.go