You can create multiple App client instances to connect to multiple Apps. All App client instances that share the same App ID use the same underlying connection.
Important
Changing an App Config After Initializing the App
.. versionchanged:: ``realm@12.6.0`` ``baseUrl`` is not cached
When you initialize the App client, the configuration is cached internally. Attempting to "close" and then re-open an App with a changed configuration within the same process has no effect. The client continues to use the cached configuration.
Starting with React Native SDK version 12.6.0, the baseUrl in the AppConfiguration
is not cached. This means that you can change the baseUrl
and the App client will use the updated configuration. In earlier SDK
versions, changes to the baseUrl in a cached App configuration have no
effect.