Data Flow Architecture
Explore the comprehensive data flow patterns powering Playcast's cloud gaming platform. From WebRTC streaming pipelines to authentication flows and state management architecture.
WebRTC Streaming Pipeline
The core streaming pipeline manages real-time video and audio transmission from game capture
to user display with optimized encoding, network adaptation, and quality monitoring.
Game Process
DirectX Rendering
Playjector
Screen Capture
H.264 Encoder
NVENC/QuickSync
WebRTC Transport
RTP/SRTP
Quality Monitor
Adaptive Bitrate
Network Layer
ICE/TURN/STUN
Client Decoder
Hardware Decode
User Display
Canvas Rendering
60fps
Encode
Stream
Adapt
Network
Decode
Render
<50ms
End-to-End Latency
Total time from user input to visual response
60fps
Target Frame Rate
Consistent frame delivery for smooth gameplay
1080p
Resolution
High-quality video stream with adaptive scaling
99.9%
Stream Reliability
Uptime and connection stability metrics
Authentication Flow Sequence
Secure user authentication and session management using Clerk integration with JWT tokens,
role-based access control, and seamless single sign-on experience.
User
Frontend
Clerk Auth
Node Service
1. Login Request
2. OAuth Redirect
3. Credential Validation
4. JWT Token
5. Session Creation
6. Profile Data
Game Session Lifecycle
Complete lifecycle management of gaming sessions from initialization through cleanup,
including resource allocation, quality monitoring, and graceful termination.
Idle
→
Initializing
→
Connecting
→
Active Gaming
Paused
←
Cleanup
←
Terminated
←
Error
Session Request
User Initiated
Resource Alloc
CPU/GPU/Memory
Game Launch
Process Start
WebRTC Setup
Peer Connection
Stream Start
Video/Audio
Quality Monitor
Continuous
Session End
User/Timeout
Cleanup
Resource Free
Message Flow Patterns
Real-time messaging architecture supporting various communication patterns including
WebSocket signaling, data channels, and event-driven notifications.
1000+
Messages/Second
Peak message throughput capacity
10ms
Message Latency
Average message delivery time
99.99%
Delivery Rate
Guaranteed message delivery success
5MB/s
Data Throughput
Maximum sustained data transfer rate
State Management Architecture
Comprehensive state synchronization across distributed components with conflict resolution,
eventual consistency, and optimistic updates for responsive user experience.
Client State
React Context
Local Cache
IndexedDB
Server State
PostgreSQL
Session State
Redis Cache
Game State
Memory + Disk
Sync
Update
Cache
Persist