dashboardAPI/test/_output-manifest.md

dashboardAPI output manifest

Per .claude/rules/output-coverage.md: every output on every layer, in every state.

Port 0 (process — Grafana upsert messages)

Emitted by the command handler(s) after a child.register or regenerate-dashboard message. Shape is the same for both; meta.trigger distinguishes them.

Key	Source method	Type	States tested	Test file
topic	handlers.emitDashboardsFor	'create' (literal)	populated	test/basic/slice41-manual-regen.basic.test.js
url	source.grafanaUpsertUrl()	string (configured Grafana endpoint)	populated, default-config	test/basic/slice34-credentials-and-folder.basic.test.js
method	handlers.emitDashboardsFor	'POST' (literal)	populated	test/basic/slice41-manual-regen.basic.test.js
headers.Accept	handlers.emitDashboardsFor	'application/json' (literal)	populated	via output manifest test below
headers['Content-Type']	handlers.emitDashboardsFor	'application/json' (literal)	populated	via output manifest test below
headers.Authorization	handlers.emitDashboardsFor	'Bearer <token>' when configured; absent when not	populated, absent (degraded — no token)	test/basic/slice43-output-manifest.basic.test.js
payload.dashboard	source.buildDashboard()	object (Grafana dashboard JSON)	populated, byte-identical-on-repeat	test/basic/slice35-graph-perf-and-uid-uniqueness.basic.test.js
payload.overwrite	source.buildUpsertRequest()	true (literal)	populated	test/basic/slice34-credentials-and-folder.basic.test.js
payload.folderUid	source.buildUpsertRequest()	string when configured; absent when empty	populated, absent (degraded — empty config)	test/basic/slice34-credentials-and-folder.basic.test.js
payload.folderId	source.buildUpsertRequest()	number when explicitly passed; absent otherwise	absent (default), populated (explicit)	test/basic/slice34-credentials-and-folder.basic.test.js
meta.nodeId	handlers.emitDashboardsFor	string (child node id)	populated	test/basic/slice43-output-manifest.basic.test.js
meta.softwareType	handlers.emitDashboardsFor	string (child softwareType)	populated	test/basic/slice43-output-manifest.basic.test.js
meta.uid	handlers.emitDashboardsFor	string (stableUid hash, deterministic)	populated, byte-identical	test/basic/slice35-graph-perf-and-uid-uniqueness.basic.test.js
meta.title	handlers.emitDashboardsFor	string (child name or id)	populated	test/basic/slice43-output-manifest.basic.test.js
meta.trigger	handlers.emitDashboardsFor	'child.register' or 'manual'	both states	test/basic/slice41-manual-regen.basic.test.js

Degraded-state convention: missing keys are absent, never set to null. The http request consumer treats absent headers/payload fields as defaults.

Port 1 (InfluxDB telemetry)

dashboardAPI emits nothing on Port 1 by design — it has no measurements, no tick loop, no telemetry. Verified by absence: no formatForInflux import, no Port 1 wires in examples/.

Port 2 (registration / control plumbing)

dashboardAPI is a sink for child.register messages, not a source — it does not register itself with any parent. Nothing emitted on Port 2.

Structured log outputs

Event	Level	Triggered by	Fields	Test
regen-emitted	info	successful composition (auto or manual)	event, trigger, dashboardApiId, childId, dashboardCount	test/basic/slice43-output-manifest.basic.test.js
regen-skipped	info	diff predicate says subtree unchanged	event, outcome: 'no-diff', trigger: 'child.register', dashboardApiId, childId, subtreeSize	test/basic/slice43-output-manifest.basic.test.js
manual-regen-requested	info	regenerate-dashboard topic received	event, trigger: 'manual', dashboardApiId, cachedChildCount	test/basic/slice41-manual-regen.basic.test.js
parent-panels-deduped	debug	no-data-duplication filter removed root panels	event, before, after, rootTitle	covered by composition tests in slice39
flows:started	debug	Node-RED runtime emits flows:started	event: 'flows:started', type, diff (count summary)	covered by predicate tests in slice36

specificClass return shapes

Method	Return shape	Populated states	Degraded states	Test
buildDashboard(opts)	{ dashboard, uid, title, softwareType, nodeId, measurementName } or null	success	null when no template for softwareType	test/basic/slice43-output-manifest.basic.test.js
generateDashboardsForGraph(root)	array of buildDashboard results, root first, children after	0..N children	empty array when root config missing	test/basic/slice35-graph-perf-and-uid-uniqueness.basic.test.js
subtreeChanged(diff, ids)	boolean	id-in-diff, no-id-in-diff	null diff → true (cold start)	test/basic/slice36-diff-predicate.basic.test.js
subtreeIdsFor(myId, child)	Set<string>	myId+childId+grandchildren	myId only when child has no grandchildren	test/basic/slice36-diff-predicate.basic.test.js
collectEmittedFields(dashboard)	Set<string>	populated dashboard	empty set for null/{}/{panels:[]}	test/basic/slice37-emitted-fields.basic.test.js
cachedChildSources()	array of child sources	0..N cached	empty after construction	test/basic/slice41-manual-regen.basic.test.js

Anti-patterns enforced

• ❌ Emitting {payload: null} — handlers.emitDashboardsFor always builds payload: { dashboard, overwrite, ... }. Verified.
• ❌ Mixing absent vs null for optional fields — folderUid / folderId are absent when unconfigured, never null. Verified.
• ❌ Per-call token stamping — token is set on headers.Authorization when configured; absent when not. No empty-string sentinel.
• ❌ Tab id over-triggering in diff predicate — predicate only matches against dashboardAPI's own id + child + grandchildren, never tab ids. Verified.

Migration plan applied

This manifest is created together with slice #43 — the new outputs added in slices #34–#42 are documented here. Other EVOLV nodes still need their own manifests; tracked in IMPROVEMENTS_BACKLOG.md.