Overview

The Board Service provides visual kanban and scrum board capabilities, managing board layouts, columns, and real-time task positioning.

Key Responsibilities

Board Management

• Create kanban and scrum boards
• Define custom columns and workflows
• Set WIP (Work In Progress) limits
• Configure board views and filters
• Archive and restore boards

Real-time Updates

• WebSocket connections for live board updates
• Optimistic UI updates with conflict resolution
• Presence indicators (who’s viewing)
• Collaborative drag-and-drop

Board Views

• List view, board view, timeline view
• Custom grouping (by assignee, priority, label)
• Swim lanes for organization
• Filtering and search within board

Technical Details

Technology Stack:

• Runtime: Node.js 20
• Framework: Socket.io for WebSockets
• Database: MongoDB (flexible board schemas)
• Cache: Redis (board state)
• Message Broker: Apache Kafka

SLA:

• Availability: 99.95%
• WebSocket Latency: < 100ms
• Board Load Time: < 500ms with 500 tasks

Real-time Architecture

• WebSocket connections per board
• Pub/Sub for multi-server scaling
• Conflict resolution using Operational Transform
• Automatic reconnection with state sync