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Rules-Based Router

Learning goals​

Understand exclusive branching without executing user code.

Quick reference: Level 3; intermediate; output type routed_value; estimated cost: none.

Architecture​

Text alternative: The graph contains FlowBeads/input, Control/Switch, Control/Merge, Test/DataProbe, FlowBeads/output. It accepts public input and returns a public result.

Prerequisites​

None.

Connections​

None.

Secrets​

No paid secret is required.

Build and run​

  1. Run urgent, normal and unknown values.
  2. Inspect active output summaries.
  3. Enable non-strict Merge to compare behavior.

Use this fixture in the Test panel:

Priority route
"urgent"

Expected result​

  • priority branch is active
  • other branches are undefined
  • Merge returns the original value

Open the persisted run and verify the node timeline. Browser sinks appear in the Inspector; public output appears in the run result when enabled.

Side effects and cost​

This Braid has no external side effect.

Cost: none. DataBraid stores summaries and structured errors, not secret values.

Extensions​

  • Change the fixture and compare the node-level timeline.
  • Add a Data Probe before the final output.
  • Save a known-good fixture for regression testing.