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Messenger/app/realtime/schemas.py
benya a9e4222062
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feat(realtime): add ping/pong heartbeat and watchdog reconnect
- support ping incoming event and pong outgoing response
- add web heartbeat interval to keep ws alive
- add stale-connection watchdog to force reconnect on missing pong
2026-03-08 02:13:34 +03:00

54 lines
1.2 KiB
Python

from datetime import datetime
from typing import Any, Literal
from pydantic import BaseModel, ConfigDict, Field
from app.messages.models import MessageType
RealtimeEventName = Literal[
"connect",
"disconnect",
"send_message",
"receive_message",
"typing_start",
"typing_stop",
"message_read",
"message_delivered",
"user_online",
"user_offline",
"pong",
"error",
]
class SendMessagePayload(BaseModel):
chat_id: int
type: MessageType = MessageType.TEXT
text: str | None = Field(default=None, max_length=4096)
temp_id: str | None = None
client_message_id: str | None = Field(default=None, min_length=8, max_length=64)
reply_to_message_id: int | None = None
class ChatEventPayload(BaseModel):
chat_id: int
class MessageStatusPayload(BaseModel):
chat_id: int
message_id: int
class IncomingRealtimeEvent(BaseModel):
event: Literal["send_message", "typing_start", "typing_stop", "message_read", "message_delivered", "ping"]
payload: dict[str, Any]
class OutgoingRealtimeEvent(BaseModel):
model_config = ConfigDict(from_attributes=True)
event: RealtimeEventName
payload: dict[str, Any]
timestamp: datetime