django-df-chat

Development

Installing dev requirements:

pip install -e .[test]

Installing pre-commit hook:

pre-commit install

Running tests:

pytest

New Design

Model Data

ChatRoom

• title = CharField()
• users = ManyToManyField(through="ChatMember")
• chat_type = Enum: 'private', 'group',

ChatMember

• is_owner = BooleanField(default=False)
• is_admin = BooleanField(default=False)
• user = ForeignKey(ChatUser)
• chat_room = ForeignKey(ChatRoom)

MemberChannel (service table)

• last_alive_at = DateTimeField()
• channel_name = CharField()
• user = ForeignKey(ChatUser)

ChatMessage

• created_by = ForeignKey(ChatUser)
• chat_room = ForeignKey(ChatRoom)
• message = TextField(settings.CHAT_USER_MODEL)

API:

[GET] /api/v1/chat/rooms/

[POST] /api/v1/chat/rooms/

[GET] /api/v1/chat/rooms/{id}/

[PUT] /api/v1/chat/rooms/{id}/

[PATCH] /api/v1/chat/rooms/{id}/

[DELETE] /api/v1/chat/rooms/{id}/

[POST] /api/v1/chat/rooms/{id}/member/

[GET] /api/v1/chat/rooms/{room_id}/messages/

[POST] /api/v1/chat/rooms/{room_id}/messages/

[GET] /api/v1/chat/rooms/{room_id}/messages/{id}/

[PUT] /api/v1/chat/rooms/{room_id}/messages/{id}/

[PATCH] /api/v1/chat/rooms/{room_id}/messages/{id}/

[DELETE] /api/v1/chat/rooms/{room_id}/messages/{id}/

Use cases:

• Create chat room with specific type, and add user. Channel layer should be created if user are online and all online users should to receive messages
• Private chat room (chat between 2 members). Nobody can add new members.
• Group chat (chat between multiple users). Users could be added through API endpoint call
• moderation part is missed at the moment

Flow:

• User connected to WS
• Channel layer stored to DB to use it in a future to dynamically subscribe user with a new chatRooms
• on user disconnected channel layer should be removed from DB