How do i pass the DataSourceOptions from my code to the code of an npm package?

[rahul-kv]

Hi
i have an npm package where i use the getRepository method which is now deprecated so i have to use the dataSource.getRepository method but i've been asked to pass dataSourceOptions which incudes a mandatory field which is type which can be mongodb,mysql,postgres and so on.

I initially hardcoded it as postgres and when i tried to use the decorator in a different code i am getting the error
error: password authentication failed for user "rahul"

i'm new to the data source migration aspect and would love to know how i can pass the dataSourceOptions from my codebase to my npm package