Lists of Group Members (including their roles like admin/member)
Posted: Thu May 22, 2025 6:29 am
Phone Numbers (primary identifier)
Profile Names
Profile Pictures (though media content itself might be stored in separate blob storage, references to it are in databases)
"About" information
Account creation date
User settings and preferences (e.g., privacy settings, notification preferences)
Last seen status (timestamp of last activity)
Online/offline status (presence information)
User-to-Server Mapping / Presence:
Information about which server a user's device is currently slovenia phone number list connected to (via WebSocket connections). This is critical for routing messages efficiently.
This data needs to be extremely fast to read/write for real-time presence updates.
Group Information:
Group IDs
Group Names
Group Profile Pictures
Group settings
Contacts (Hashed):
While WhatsApp doesn't store your raw contact list, it processes hashed versions of the phone numbers from your address book to identify which of your contacts are also WhatsApp users. This involves matching hashed phone numbers against its user database.
Metadata for Message Delivery:
Profile Names
Profile Pictures (though media content itself might be stored in separate blob storage, references to it are in databases)
"About" information
Account creation date
User settings and preferences (e.g., privacy settings, notification preferences)
Last seen status (timestamp of last activity)
Online/offline status (presence information)
User-to-Server Mapping / Presence:
Information about which server a user's device is currently slovenia phone number list connected to (via WebSocket connections). This is critical for routing messages efficiently.
This data needs to be extremely fast to read/write for real-time presence updates.
Group Information:
Group IDs
Group Names
Group Profile Pictures
Group settings
Contacts (Hashed):
While WhatsApp doesn't store your raw contact list, it processes hashed versions of the phone numbers from your address book to identify which of your contacts are also WhatsApp users. This involves matching hashed phone numbers against its user database.
Metadata for Message Delivery: