TypeScript Setup | RxDB

In this tutorial you will learn how to use RxDB with TypeScript. We will create a basic database with one collection and several ORM-methods, fully typed!
RxDB directly comes with its typings and you do not have to install anything else. The latest version of RxDB requires TypeScript v3.8 or newer. All types are exported from rxdb, see the import reference for the full list of type and plugin imports. How to type a replication is shown in using the replication with TypeScript. Our way to go is
First you import the types from RxDB.
First we have to define the TypeScript type of the documents of a collection:
Option A: Create the document type from the schema
Option B: Manually type the document type
Option C: Generate the document type from schema during build time
If your schema is in a .json file or generated from somewhere else, you might generate the typings with the json-schema-to-typescript module.
We also add some ORM-methods for the document.
We can merge these into our TodoDocument.
Now we can define type for the collection which contains the documents.
Before we can define the database, we make a helper-type which contains all collections of it.
Now that we have declared all our types, we can use them.