These tutorials target Micronaut Framework 3. Read, Guides for Micronaut Framework 4.

gorm

LDAP and Database authentication providers
Learn how to create a LDAP and a database authentication provider in a Micronaut Application.
Tags: ldap, authentication-provider, gorm, h2, security
Micronaut Multitenancy Propagation
Learn how the Micronaut framework helps you implement multitenancy in a set of microservices.
Tags: gorm, multitenancy, http-server-filter, multitenancy-gorm, http-client, propagation, geb, spock, handlebars, views, multiple-datasources