The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"name": "Sensor Chatbot",
"nodes": [
{
"parameters": {
"public": true,
"allowFileUploads": false,
"options": {}
},
"id": "node-chat-trigger",
"name": "Chat Trigger",
"type": "@n8n/n8n-nodes-langchain.chatTrigger",
"typeVersion": 1.4,
"position": [
240,
300
]
},
{
"parameters": {
"rules": {
"values": [
{
"conditions": {
"options": {
"caseSensitive": false,
"leftValue": "",
"typeValidation": "loose",
"version": 2
},
"conditions": [
{
"id": "cond-temp",
"leftValue": "={{ $json.chatInput }}",
"rightValue": "\uc628\ub3c4",
"operator": {
"type": "string",
"operation": "contains",
"name": "filter.operator.contains"
}
}
],
"combinator": "and"
},
"renameOutput": true,
"outputKey": "\uc628\ub3c4"
},
{
"conditions": {
"options": {
"caseSensitive": false,
"leftValue": "",
"typeValidation": "loose",
"version": 2
},
"conditions": [
{
"id": "cond-humid",
"leftValue": "={{ $json.chatInput }}",
"rightValue": "\uc2b5\ub3c4",
"operator": {
"type": "string",
"operation": "contains",
"name": "filter.operator.contains"
}
}
],
"combinator": "and"
},
"renameOutput": true,
"outputKey": "\uc2b5\ub3c4"
},
{
"conditions": {
"options": {
"caseSensitive": false,
"leftValue": "",
"typeValidation": "loose",
"version": 2
},
"conditions": [
{
"id": "cond-press",
"leftValue": "={{ $json.chatInput }}",
"rightValue": "\uae30\uc555",
"operator": {
"type": "string",
"operation": "contains",
"name": "filter.operator.contains"
}
}
],
"combinator": "and"
},
"renameOutput": true,
"outputKey": "\uae30\uc555"
},
{
"conditions": {
"options": {
"caseSensitive": false,
"leftValue": "",
"typeValidation": "loose",
"version": 2
},
"conditions": [
{
"id": "cond-recent",
"leftValue": "={{ $json.chatInput }}",
"rightValue": "\ucd5c\uadfc",
"operator": {
"type": "string",
"operation": "contains",
"name": "filter.operator.contains"
}
}
],
"combinator": "and"
},
"renameOutput": true,
"outputKey": "\ucd5c\uadfc"
}
]
},
"options": {
"fallbackOutput": "extra"
}
},
"id": "node-switch",
"name": "Route by Keyword",
"type": "n8n-nodes-base.switch",
"typeVersion": 3,
"position": [
460,
300
]
},
{
"parameters": {
"operation": "executeQuery",
"query": "SELECT temperature, recorded_at FROM sensor_data ORDER BY recorded_at DESC LIMIT 1;"
},
"id": "node-pg-temp",
"name": "Query \uc628\ub3c4",
"type": "n8n-nodes-base.postgres",
"typeVersion": 2.3,
"position": [
680,
120
],
"credentials": {
"postgres": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"operation": "executeQuery",
"query": "SELECT humidity, recorded_at FROM sensor_data ORDER BY recorded_at DESC LIMIT 1;"
},
"id": "node-pg-humid",
"name": "Query \uc2b5\ub3c4",
"type": "n8n-nodes-base.postgres",
"typeVersion": 2.3,
"position": [
680,
240
],
"credentials": {
"postgres": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"operation": "executeQuery",
"query": "SELECT pressure, recorded_at FROM sensor_data ORDER BY recorded_at DESC LIMIT 1;"
},
"id": "node-pg-press",
"name": "Query \uae30\uc555",
"type": "n8n-nodes-base.postgres",
"typeVersion": 2.3,
"position": [
680,
360
],
"credentials": {
"postgres": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"operation": "executeQuery",
"query": "SELECT temperature, humidity, pressure, recorded_at FROM sensor_data ORDER BY recorded_at DESC LIMIT 5;"
},
"id": "node-pg-recent",
"name": "Query \ucd5c\uadfc",
"type": "n8n-nodes-base.postgres",
"typeVersion": 2.3,
"position": [
680,
480
],
"credentials": {
"postgres": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"jsCode": "const row = $input.first().json;\nconst t = parseFloat(row.temperature).toFixed(1);\nconst time = new Date(row.recorded_at).toLocaleString('ko-KR', {timeZone:'Asia/Seoul'});\nreturn [{ json: { output: `\ud604\uc7ac \uc628\ub3c4\ub294 ${t}\u00b0C \uc785\ub2c8\ub2e4. (\uce21\uc815 \uc2dc\uac04: ${time})` } }];"
},
"id": "node-code-temp",
"name": "Reply \uc628\ub3c4",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
900,
120
]
},
{
"parameters": {
"jsCode": "const row = $input.first().json;\nconst h = parseFloat(row.humidity).toFixed(1);\nconst time = new Date(row.recorded_at).toLocaleString('ko-KR', {timeZone:'Asia/Seoul'});\nreturn [{ json: { output: `\ud604\uc7ac \uc2b5\ub3c4\ub294 ${h}% \uc785\ub2c8\ub2e4. (\uce21\uc815 \uc2dc\uac04: ${time})` } }];"
},
"id": "node-code-humid",
"name": "Reply \uc2b5\ub3c4",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
900,
240
]
},
{
"parameters": {
"jsCode": "const row = $input.first().json;\nconst p = parseFloat(row.pressure).toFixed(1);\nconst time = new Date(row.recorded_at).toLocaleString('ko-KR', {timeZone:'Asia/Seoul'});\nreturn [{ json: { output: `\ud604\uc7ac \uae30\uc555\uc740 ${p}hPa \uc785\ub2c8\ub2e4. (\uce21\uc815 \uc2dc\uac04: ${time})` } }];"
},
"id": "node-code-press",
"name": "Reply \uae30\uc555",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
900,
360
]
},
{
"parameters": {
"jsCode": "const rows = $input.all();\nlet result = '\ucd5c\uadfc 5\uac74\uc758 \uc13c\uc11c \ub370\uc774\ud130:\\n';\nrows.forEach((item, i) => {\n const d = item.json;\n const t = parseFloat(d.temperature).toFixed(1);\n const h = parseFloat(d.humidity).toFixed(1);\n const p = parseFloat(d.pressure).toFixed(1);\n const time = new Date(d.recorded_at).toLocaleString('ko-KR', {timeZone:'Asia/Seoul'});\n result += `${i+1}. \uc628\ub3c4: ${t}\u00b0C | \uc2b5\ub3c4: ${h}% | \uae30\uc555: ${p}hPa (${time})\\n`;\n});\nreturn [{ json: { output: result.trim() } }];"
},
"id": "node-code-recent",
"name": "Reply \ucd5c\uadfc",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
900,
480
]
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "assign-default",
"name": "output",
"value": "\uc628\ub3c4, \uc2b5\ub3c4, \uae30\uc555, \ucd5c\uadfc \uc911 \ud558\ub098\ub97c \ubb3c\uc5b4\ubcf4\uc138\uc694.\n\uc608\uc2dc: '\uc9c0\uae08 \uc628\ub3c4 \uc54c\ub824\uc918', '\uc2b5\ub3c4\ub294?', '\ucd5c\uadfc \ub370\uc774\ud130 \ubcf4\uc5ec\uc918'",
"type": "string"
}
]
},
"options": {}
},
"id": "node-default",
"name": "Default Reply",
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
680,
600
]
}
],
"connections": {
"Chat Trigger": {
"main": [
[
{
"node": "Route by Keyword",
"type": "main",
"index": 0
}
]
]
},
"Route by Keyword": {
"main": [
[
{
"node": "Query \uc628\ub3c4",
"type": "main",
"index": 0
}
],
[
{
"node": "Query \uc2b5\ub3c4",
"type": "main",
"index": 0
}
],
[
{
"node": "Query \uae30\uc555",
"type": "main",
"index": 0
}
],
[
{
"node": "Query \ucd5c\uadfc",
"type": "main",
"index": 0
}
],
[
{
"node": "Default Reply",
"type": "main",
"index": 0
}
]
]
},
"Query \uc628\ub3c4": {
"main": [
[
{
"node": "Reply \uc628\ub3c4",
"type": "main",
"index": 0
}
]
]
},
"Query \uc2b5\ub3c4": {
"main": [
[
{
"node": "Reply \uc2b5\ub3c4",
"type": "main",
"index": 0
}
]
]
},
"Query \uae30\uc555": {
"main": [
[
{
"node": "Reply \uae30\uc555",
"type": "main",
"index": 0
}
]
]
},
"Query \ucd5c\uadfc": {
"main": [
[
{
"node": "Reply \ucd5c\uadfc",
"type": "main",
"index": 0
}
]
]
}
},
"settings": {
"executionOrder": "v1"
}
}
Credentials you'll need
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postgres
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About this workflow
Sensor Chatbot. Uses chatTrigger, postgres. Chat trigger; 11 nodes.
Source: https://github.com/Userlsj-project/docker_n8n_sensor/blob/ea44301384261128b28a8f5a1a3861e29135b0d2/n8n/chatbot_workflow.json — original creator credit. Request a take-down →
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