Firestore

conceptual

Firestore is a noSQL database that is most similar to MongoDB. It's made of collections and documents.

A collection is a set of documents

A document is a set of fields. A document may contain 20k fields and 2 megabytes of data.

A reference serves to identify a tentative collection or a tentative document. They are tentative because the reference on its own does not guarantee the existence of what it is referring to.

references and release notes

• client SDK reference
• admin SDK reference - table of content
• admin SDK reference - googleapis
• admin SDK reference - cloud.google.com

import paths and init

"firebase/firestore" // client SDK
"firebase/firestore/lite" // client SDK
"firebase-admin/firestore" // admin SDK

We init a db object with the config, for use in firestore-related functions.

const db = getFirestore(app)