The workflow JSON
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{
"name": "QRSGEN_LIFECYCLE_NOTIFIER",
"nodes": [
{
"parameters": {
"httpMethod": "POST",
"path": "qrsgen-events",
"responseMode": "responseNode",
"options": {}
},
"id": "node-webhook",
"name": "Webhook",
"type": "n8n-nodes-base.webhook",
"typeVersion": 2,
"position": [
-1400,
0
]
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "a1",
"name": "instance",
"value": "={{ $json.body.instance }}",
"type": "string"
},
{
"id": "a2",
"name": "event",
"value": "={{ $json.body.event }}",
"type": "string"
},
{
"id": "a3",
"name": "jid",
"value": "={{ $json.body.jid || '' }}",
"type": "string"
},
{
"id": "a4",
"name": "occurred_at",
"value": "={{ $json.body.occurred_at }}",
"type": "string"
},
{
"id": "a5",
"name": "msg_emoji",
"value": "={{ ({connected:'\u2705', disconnected:'\u26a0\ufe0f', logged_out:'\ud83d\udea8', paired:'\ud83d\udd17'}[$json.body.event] || '\u2022') }}",
"type": "string"
},
{
"id": "a6",
"name": "msg_text",
"value": "={{ ({connected:'Instancia reconectada y operativa.', disconnected:'Instancia desconectada (sostenido >2 min). whatsmeow est\u00e1 reintentando auto-reconnect.', logged_out:'Sesi\u00f3n INVALIDADA en servidor WhatsApp. Re-escaneo necesario: ejecuta /qrv2 ' + $json.body.instance, paired:'Device emparejado.'}[$json.body.event] || 'Evento: ' + $json.body.event) }}",
"type": "string"
}
]
},
"options": {}
},
"id": "node-extract",
"name": "extract event",
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
-1180,
0
]
},
{
"parameters": {
"respondWith": "json",
"responseBody": "={\n \"ok\": true,\n \"received\": \"{{ $json.event }}\"\n}",
"options": {}
},
"id": "node-respond",
"name": "respond ok",
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1.1,
"position": [
-960,
200
]
},
{
"parameters": {
"method": "GET",
"url": "=https://your-downstream.example.com/api/v1/accounts/1/contacts/search",
"sendQuery": true,
"queryParameters": {
"parameters": [
{
"name": "q",
"value": "=qrsgen / {{ $json.instance }}"
}
]
},
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "api_access_token",
"value": "dmUhraPzzZKZnJrB15ouknNM"
}
]
},
"options": {}
},
"id": "node-search-ops",
"name": "search ops contact",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
-960,
-100
]
},
{
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"typeValidation": "loose",
"version": 2
},
"conditions": [
{
"id": "c-has",
"leftValue": "={{ $json.payload.length }}",
"rightValue": 0,
"operator": {
"type": "number",
"operation": "gt"
}
}
],
"combinator": "and"
},
"options": {}
},
"id": "node-if-ops",
"name": "ops contact exists?",
"type": "n8n-nodes-base.if",
"typeVersion": 2.2,
"position": [
-740,
-100
]
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "cid",
"name": "contact_id",
"value": "={{ $json.payload[0].id }}",
"type": "number"
}
]
},
"options": {}
},
"id": "node-cid",
"name": "extract contact id",
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
-520,
-200
]
},
{
"parameters": {
"method": "GET",
"url": "=https://your-downstream.example.com/api/v1/accounts/1/contacts/{{ $('extract contact id').item.json.contact_id }}/conversations",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "api_access_token",
"value": "dmUhraPzzZKZnJrB15ouknNM"
}
]
},
"options": {}
},
"id": "node-list-convs",
"name": "list ops convs",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
-300,
-200
]
},
{
"parameters": {
"jsCode": "const body = $input.first().json;\nconst payload = body.payload || (body.data && body.data.payload) || [];\nconst arr = Array.isArray(payload) ? payload : (payload.payload || []);\nif (arr.length === 0) {\n return [{ json: { conv_id: null } }];\n}\n// pick the most recent (highest id assumed most recent)\nconst sorted = arr.slice().sort((a,b) => (b.id||0) - (a.id||0));\nreturn [{ json: { conv_id: sorted[0].id } }];"
},
"id": "node-pick-conv",
"name": "pick ops conv",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
-80,
-200
]
},
{
"parameters": {
"method": "POST",
"url": "=https://your-downstream.example.com/api/v1/accounts/1/conversations/{{ $json.conv_id }}/messages",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "Content-Type",
"value": "application/json"
},
{
"name": "api_access_token",
"value": "dmUhraPzzZKZnJrB15ouknNM"
}
]
},
"sendBody": true,
"specifyBody": "json",
"jsonBody": "={\n \"content\": \"{{ $('extract event').item.json.msg_emoji }} *{{ $('extract event').item.json.event }}* \u2014 {{ $('extract event').item.json.msg_text }}\\n\\n_at {{ $('extract event').item.json.occurred_at }}_\",\n \"message_type\": \"outgoing\",\n \"private\": true\n}",
"options": {}
},
"id": "node-post-ops-msg",
"name": "post ops msg",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
140,
-200
]
},
{
"parameters": {
"respondWith": "json",
"responseBody": "={\n \"ok\": false,\n \"reason\": \"ops contact not found for instance {{ $('extract event').item.json.instance }} \u2014 \u00bfse cre\u00f3 ya via /qrv2 + pairing?\"\n}",
"options": {}
},
"id": "node-respond-no-contact",
"name": "respond ops contact missing",
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1.1,
"position": [
-520,
0
]
}
],
"connections": {
"Webhook": {
"main": [
[
{
"node": "extract event",
"type": "main",
"index": 0
}
]
]
},
"extract event": {
"main": [
[
{
"node": "search ops contact",
"type": "main",
"index": 0
},
{
"node": "respond ok",
"type": "main",
"index": 0
}
]
]
},
"search ops contact": {
"main": [
[
{
"node": "ops contact exists?",
"type": "main",
"index": 0
}
]
]
},
"ops contact exists?": {
"main": [
[
{
"node": "extract contact id",
"type": "main",
"index": 0
}
],
[
{
"node": "respond ops contact missing",
"type": "main",
"index": 0
}
]
]
},
"extract contact id": {
"main": [
[
{
"node": "list ops convs",
"type": "main",
"index": 0
}
]
]
},
"list ops convs": {
"main": [
[
{
"node": "pick ops conv",
"type": "main",
"index": 0
}
]
]
},
"pick ops conv": {
"main": [
[
{
"node": "post ops msg",
"type": "main",
"index": 0
}
]
]
}
},
"settings": {
"executionOrder": "v1"
},
"active": false,
"meta": {
"templateCredsSetupCompleted": true
},
"tags": []
}
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About this workflow
QRSGEN_LIFECYCLE_NOTIFIER. Uses httpRequest. Webhook trigger; 10 nodes.
Source: https://github.com/rricajos/qrsgen/blob/4f1f5bef595415fd6fbfecb9c9ccbf6ea4d5fa5e/examples/n8n-basic/qrsgen_lifecycle_notifier.workflow.json — original creator credit. Request a take-down →
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