Understanding reducerPath in RTK Query’s createApi()
In RTK Query, the reducerPath property inside createApi() defines the key under which the API slice’s state is stored in the Redux store. It ensures that multiple API slices can coexist without overwriting each other’s state.
Acts as a unique identifier for the API slice in the Redux store.
Prevents state conflicts when using multiple createApi() instances.
Determines where RTK Query stores cache data, request status, and metadata.
Used internally by RTK Query hooks to locate API state in the Redux store.
If you define multiple APIs, each should have a unique reducerPath value to avoid naming collisions in the Redux state.
In short, reducerPath tells Redux where to store all the state managed by RTK Query for a specific API slice.