Approval Workflow
Learn how it works
State Diagram
Draft
Initial request creation
Submitted
Awaiting decision
Approved
FinalRequest approved
Rejected
FinalRequest rejected
Step 1 of 3: Initialize
Create a new approval request in draft state
Guard Evaluation
N/A (initialization)
Effect
Set initial state data
The state machine is created in its initial state (draft) with the initial data payload. No transitions have occurred yet.
State Data After Transition → draft
{
"requestId": "REQ-001",
"title": "New Equipment Purchase",
"requestor": "alice@company.com",
"amount": 5000
}Key Concepts
State Transitions
State machines move from one state to another via events. Each transition has a source state, target state, and event type.
Guards
Guards are JSON Logic expressions that must evaluate to true for a transition to occur.
Effects
Effects modify the state data when a transition executes using the merge operation.
Final States
States marked as final prevent further transitions. Once reached, the workflow is complete.
Ready to try it yourself?
Switch to Interactive Playground mode to create a real state machine on the metagraph!