Engineering libraryCapability 01 / 12
Approval Workflow Engine
Configurable multi-stage approval routing for business processes like leave requests, purchase orders, and invoice approvals.
How it moves
Stage 1
Submitted
Approver role
Stage 2
In review
Approver role
Stage N
Final stage
Approver role
Done
Approved
Transition
Escalation rules apply at every stage
01
Architecture
State machine-based workflow engine with configurable stages, approver roles, escalation rules, and notification triggers at each transition.
02
Reusability
Shared engine powers HR leave workflows, ERP purchase approvals, and any module requiring staged authorization.
Technologies
- Node.js
- TypeScript
- MongoDB
- Redis
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