NuklearRabbit
59d663a43a
Outbox dispatcher (background thread, FOR UPDATE SKIP LOCKED claim, exponential backoff, no transaction held during HTTP I/O). n8n callback endpoint with shared-secret auth and idempotency by event ID. Automation nav + UI with manual retry. 49 backend tests passing, ruff clean. Fixed a crash-on-redelivery bug in seeded outbox payloads and made the dispatcher defensive against malformed payloads. Verified the full live round trip against a real n8n instance: return -> outbox -> dispatcher -> n8n workflow -> callback -> succeeded, including the S5 failed-retry demo scenario.
127 lines
3.2 KiB
JSON
127 lines
3.2 KiB
JSON
{
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"id": "mobilityops-return-processing",
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"name": "MobilityOps - Vehicle Return Processing",
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"nodes": [
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{
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"parameters": {
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"httpMethod": "POST",
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"path": "mobilityops-return",
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"responseMode": "responseNode",
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"options": {}
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},
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"id": "webhook-node",
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"name": "Return webhook",
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"type": "n8n-nodes-base.webhook",
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"typeVersion": 2,
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"position": [
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240,
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300
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],
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"webhookId": "mobilityops-return"
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},
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{
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"parameters": {
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"jsCode": "const e = $json.body ?? $json;\nif (e.event_type !== 'vehicle.returned.v1') throw new Error('Unsupported event type');\nconst reasons = e.data?.attention_reasons ?? [];\nreturn [{json: {event_id: e.event_id, event_type: e.event_type, aggregate_ref: e.aggregate.public_ref, follow_up: reasons.length ? 'attention_required' : 'cleaning', summary: reasons.join('; ') || 'Create cleaning follow-up'}}];"
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},
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"id": "validate-node",
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"name": "Validate and derive follow-up",
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"type": "n8n-nodes-base.code",
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"typeVersion": 2,
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"position": [
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500,
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300
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]
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},
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{
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"parameters": {
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"method": "POST",
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"url": "={{$env.MOBILITYOPS_CALLBACK_URL || 'http://api:8000/api/v1/integrations/n8n/return-callback'}}",
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"sendHeaders": true,
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"headerParameters": {
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"parameters": [
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{
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"name": "Idempotency-Key",
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"value": "={{$json.event_id}}"
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},
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{
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"name": "X-Service-Token",
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"value": "={{$env.MOBILITYOPS_CALLBACK_TOKEN}}"
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}
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]
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},
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"sendBody": true,
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"contentType": "raw",
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"rawContentType": "application/json",
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"body": "={{JSON.stringify($json)}}",
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"options": {}
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},
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"id": "callback-node",
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"name": "Record follow-up",
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"type": "n8n-nodes-base.httpRequest",
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"typeVersion": 4.2,
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"position": [
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760,
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300
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]
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},
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{
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"parameters": {
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"respondWith": "json",
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"responseBody": "={{ { ok: true, event_id: $('Validate and derive follow-up').item.json.event_id, result: $json } }}",
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"options": {}
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},
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"id": "response-node",
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"name": "Return result",
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"type": "n8n-nodes-base.respondToWebhook",
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"typeVersion": 1.4,
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"position": [
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1020,
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300
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]
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}
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],
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"connections": {
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"Return webhook": {
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"main": [
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[
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{
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"node": "Validate and derive follow-up",
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"type": "main",
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"index": 0
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}
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]
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]
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},
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"Validate and derive follow-up": {
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"main": [
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[
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{
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"node": "Record follow-up",
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"type": "main",
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"index": 0
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}
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]
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]
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},
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"Record follow-up": {
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"main": [
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[
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{
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"node": "Return result",
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"type": "main",
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"index": 0
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}
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]
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]
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}
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},
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"settings": {
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"executionOrder": "v1"
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},
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"active": true,
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"versionId": "11111111-1111-4111-8111-111111111111",
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"meta": {
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"templateCredsSetupCompleted": false
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},
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"tags": []
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} |