This workflow follows the Postgres → Slack recipe pattern — see all workflows that pair these two integrations.
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 →
{
"id": "6",
"name": "ETL pipeline",
"nodes": [
{
"name": "Twitter",
"type": "n8n-nodes-base.twitter",
"position": [
300,
300
],
"parameters": {
"limit": 3,
"operation": "search",
"searchText": "=#OnThisDay",
"additionalFields": {}
},
"credentials": {
"twitterOAuth1Api": "<your credential>"
},
"typeVersion": 1
},
{
"name": "Postgres",
"type": "n8n-nodes-base.postgres",
"position": [
1100,
300
],
"parameters": {
"table": "tweets",
"columns": "text, score, magnitude",
"returnFields": "=*"
},
"credentials": {
"postgres": "<your credential>"
},
"typeVersion": 1
},
{
"name": "MongoDB",
"type": "n8n-nodes-base.mongoDb",
"position": [
500,
300
],
"parameters": {
"fields": "text",
"options": {},
"operation": "insert",
"collection": "tweets"
},
"credentials": {
"mongoDb": "<your credential>"
},
"typeVersion": 1
},
{
"name": "Slack",
"type": "n8n-nodes-base.slack",
"position": [
1500,
200
],
"parameters": {
"text": "=\ud83d\udc26 NEW TWEET with sentiment score {{$json[\"score\"]}} and magnitude {{$json[\"magnitude\"]}} \u2b07\ufe0f\n{{$json[\"text\"]}}",
"channel": "tweets",
"attachments": [],
"otherOptions": {}
},
"credentials": {
"slackApi": "<your credential>"
},
"typeVersion": 1
},
{
"name": "IF",
"type": "n8n-nodes-base.if",
"position": [
1300,
300
],
"parameters": {
"conditions": {
"number": [
{
"value1": "={{$json[\"score\"]}}",
"operation": "larger"
}
]
}
},
"typeVersion": 1
},
{
"name": "NoOp",
"type": "n8n-nodes-base.noOp",
"position": [
1500,
400
],
"parameters": {},
"typeVersion": 1
},
{
"name": "Google Cloud Natural Language",
"type": "n8n-nodes-base.googleCloudNaturalLanguage",
"position": [
700,
300
],
"parameters": {
"content": "={{$node[\"MongoDB\"].json[\"text\"]}}",
"options": {}
},
"credentials": {
"googleCloudNaturalLanguageOAuth2Api": "<your credential>"
},
"typeVersion": 1
},
{
"name": "Set",
"type": "n8n-nodes-base.set",
"position": [
900,
300
],
"parameters": {
"values": {
"number": [
{
"name": "score",
"value": "={{$json[\"documentSentiment\"][\"score\"]}}"
},
{
"name": "magnitude",
"value": "={{$json[\"documentSentiment\"][\"magnitude\"]}}"
}
],
"string": [
{
"name": "text",
"value": "={{$node[\"Twitter\"].json[\"text\"]}}"
}
]
},
"options": {}
},
"typeVersion": 1
},
{
"name": "Cron",
"type": "n8n-nodes-base.cron",
"position": [
100,
300
],
"parameters": {
"triggerTimes": {
"item": [
{
"hour": 6
}
]
}
},
"typeVersion": 1
}
],
"active": false,
"settings": {},
"connections": {
"IF": {
"main": [
[
{
"node": "Slack",
"type": "main",
"index": 0
}
],
[
{
"node": "NoOp",
"type": "main",
"index": 0
}
]
]
},
"Set": {
"main": [
[
{
"node": "Postgres",
"type": "main",
"index": 0
}
]
]
},
"Cron": {
"main": [
[
{
"node": "Twitter",
"type": "main",
"index": 0
}
]
]
},
"MongoDB": {
"main": [
[
{
"node": "Google Cloud Natural Language",
"type": "main",
"index": 0
}
]
]
},
"Twitter": {
"main": [
[
{
"node": "MongoDB",
"type": "main",
"index": 0
}
]
]
},
"Postgres": {
"main": [
[
{
"node": "IF",
"type": "main",
"index": 0
}
]
]
},
"Google Cloud Natural Language": {
"main": [
[
{
"node": "Set",
"type": "main",
"index": 0
}
]
]
}
}
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
googleCloudNaturalLanguageOAuth2ApimongoDbpostgresslackApitwitterOAuth1Api
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About this workflow
ETL pipeline. Uses twitter, postgres, mongoDb, slack. Scheduled trigger; 9 nodes.
Source: https://github.com/Zie619/n8n-workflows — original creator credit. Request a take-down →
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