Merge the two storages and give users the ability to write their own database drivers

[luckyycode]

CatraProto currently supports the only one session serializer of type FileSerializer
Application is hosted in Kubernetes container and it's not comfortable to use FileSerializer because it requires app to have a local path to store session data

My request is to document IAsyncSessionSerializer interface and let end-user to choose what type of storage one would like to use. Currently it's sqlite, but maybe CatraProto should have a separate interface for session storage to abstract away from sqlite and use custom storage together with custom IAsyncSessionSerializer implementations

[Aquathing]

CatraProto currently supports the only one session serializer of type FileSerializer

CatraProto supports any serializer implementing IAsyncSessionSerializer

My request is to document IAsyncSessionSerializer interface and let end-user to choose what type of storage one would like to use.

IAsyncSessionSerializer is documented here

Currently it's sqlite

IAsyncSessionSerializer and the SQLite database are two separate things:

• IAsyncSessionSerializer stores vital information about the session (auth_keys, authorization_state, for example) and some less vital, but rarely written stuff such as common updates state and channel updates state

• The SQLite database instead mainly stores a cache of peers and in the near future also information about files ([Request] Implement ability to upload and download files #1) and messages (Messages local cache #4).

[luckyycode]

I get it, that IAsyncSessionSerializer and sqlite provider are separate things, what I am talking about is to give ability to use something else but sqlite

[Aquathing]

Good.
Then I would say it's best to just merge the two databases and give the user the ability to write their own driver (while also shipping a default SQLite driver)