Allow to access `DataSource` instance after initialized with `TypeOrmModule.forRoot`

[Toshinori Tsugita]

Is there an existing issue that is already proposing this?

• I have searched the existing issues

Is your feature request related to a problem? Please describe it

When the application has finished initializing the DataSource to be used, it may be necessary to perform some processing using that DataSource.
typeorm-transactional requires such a step.

It's possible with TypeOrmModule.forRootAsync like below:

TypeOrmModule.forRootAsync({
  dataSourceFactory: async (options) => {
    const dataSource = await new DataSource(options).initialize();
    // some processes using `dataSource`
    // ..
    return dataSource;
  }
})

However, it seems impossible with TypeOrmModule.forRoot.

Describe the solution you'd like

add a new callback option.

TypeOrmModule.forRoot({
  onDataSourceInitialized: async (dataSource) => {
    // some processes using `dataSource`
  }
})

Teachability, documentation, adoption, migration strategy

N/A

What is the motivation / use case for changing the behavior?

written in Is your feature request related to a problem? Please describe it.

[Kamil Mysliwiec]

Please, use our Discord channel (support) for such questions. We are using GitHub to track bugs, feature requests, and potential improvements.