How to achieve persistency

[adonese]

We have the transport layer there, via websockets. It works and everything is fine as long as both of the clients are connected. However, let's check this diagram:

sequenceDiagram
    awab->>+abrar: both connected we use ws
    awab->>+abrar: (abrar is not connected)
    awab->abrar: (awab sends message and it goes rightaway to db)
    awab-->>db: awab's message goes to db
    abrar-->>awab: abrar enters the chat (http/sync)
    abrar-->>db: abrar retrieves all previous (is_delivered=false) messages from db

Loading

I think this one actually works quite very well for me.

[mseltahir]

Looks good to me, I think the items we need to work on are:

• Checking for client connectivity (does websocketConnections[clientID] exist?).
• Routines for reading/writing to the database.
• Creating an API as an abstraction layer for consumption by our mobile application.
• Creating automated clients that can test all functionalities for us.

Anything else you think we should do?