Difference forRoot and forFeature [Nest JS]

Question

I would like to understand the difference between forRoot and forFeature in nest js dynamic modules.

I also would like to understand this difference in the case of the TypeOrm dynamic module used with nestjs.

Answer 1

From Nest.js Discord,

• forRoot / forRootAsync: configure a module one time. This is either for a global service, or a re-used configuration internally
• forFeature / forFeatureAsync: make use of the configuration from forRoot/forRootAsync for a specific provider. This usually creates an injection token.
• register / registerAsync: a module that can be registered multiple times with different configurations each time.