D-System APIs

Organizations, legal entities, users, and access control. JWT login with refresh rotation, role templates with granular permissions, teams, and session history.

Partners with contacts, addresses and bank accounts; opportunities and their stages; activities, notifications, and task boards. Also serves the geo autocomplete used across the platform.

Inventory and documents in one service: warehouses, products, stock lots and movements with FIFO/FEFO/AVCO costing, plus the unified document flow — orders, shipments, receipts, manufacture, transfers and refunds.

Append-only ledger, incoming and outgoing payments with allocation against invoices, multi-currency exchange rates and differences, contracts, manual entries, and partner balance snapshots.

Real-time WebSocket gateway written in Rust. Delivers notifications by audience and role, document room subscriptions, payment and report events, and session revocation to connected clients.

Centralised audit log in Rust. Every service publishes audit events to RabbitMQ; this service consumes them into ClickHouse and exposes cross-service search plus per-resource history.