In Create a Multi-tenancy Application In Nest.js - Part 1, we set up the Nest.js framework, configured, and tested the microservice application using Nest.js.
Database
Nest gives us all the tools to work with any SQL and NoSQL database. You have a lot of options, you can also use almost all ORM and libraries in Nest.js and typescript, like Sequelize, TypeORM, Prisma, and of course mongoose.