This workflow follows the HTTP Request → Postgres 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 →
{
"name": "Premium / Seasonal pool open (cron)",
"nodes": [
{
"parameters": {
"rule": {
"interval": [
{
"field": "cronExpression",
"expression": "0 10 1,15 5 *"
}
]
}
},
"name": "Cron (May 1 & 15, 10:00 MSK)",
"type": "n8n-nodes-base.scheduleTrigger",
"typeVersion": 1.2,
"position": [
240,
300
]
},
{
"parameters": {
"operation": "executeQuery",
"query": "select * from public.segment_for_seasonal_service('pool_cleaning', 'seasonal_pool_open', null);"
},
"name": "Postgres (segment)",
"type": "n8n-nodes-base.postgres",
"typeVersion": 2.4,
"position": [
460,
300
],
"credentials": {
"postgres": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"batchSize": 15,
"options": {}
},
"name": "SplitInBatches (15)",
"type": "n8n-nodes-base.splitInBatches",
"typeVersion": 3,
"position": [
680,
300
]
},
{
"parameters": {
"amount": 2,
"unit": "seconds"
},
"name": "Wait (2s)",
"type": "n8n-nodes-base.wait",
"typeVersion": 1.1,
"position": [
900,
300
]
},
{
"parameters": {
"conditions": {
"string": [
{
"value1": "={{$json.channel}}",
"operation": "equals",
"value2": "telegram"
}
]
}
},
"name": "IF (telegram?)",
"type": "n8n-nodes-base.if",
"typeVersion": 1,
"position": [
1120,
300
]
},
{
"parameters": {
"chatId": "={{$json.external_id}}",
"text": "\ud83c\udfca {{$json.full_name || '\u0417\u0434\u0440\u0430\u0432\u0441\u0442\u0432\u0443\u0439\u0442\u0435'}}, \u043b\u0435\u0442\u043e \u043d\u0430 \u043f\u043e\u0440\u043e\u0433\u0435!\n\u041f\u043e\u0440\u0430 \u0437\u0430\u043f\u0443\u0441\u0442\u0438\u0442\u044c \u0432\u0430\u0448 \u0431\u0430\u0441\u0441\u0435\u0439\u043d: \u0447\u0438\u0441\u0442\u043a\u0430 \u0447\u0430\u0448\u0438, \u0444\u0438\u043b\u044c\u0442\u0440\u0430\u0446\u0438\u044f, \u0445\u0438\u043c\u0438\u044f \u2014 \u0432\u0441\u0451 \u00ab\u043f\u043e\u0434 \u043a\u043b\u044e\u0447\u00bb.\n\u0425\u043e\u0442\u0438\u0442\u0435 \u0437\u0430\u043f\u0438\u0441\u0430\u0442\u044c\u0441\u044f? /start",
"additionalFields": {
"parse_mode": "HTML"
}
},
"name": "Telegram (send)",
"type": "n8n-nodes-base.telegram",
"typeVersion": 1.1,
"position": [
1340,
200
],
"credentials": {
"telegramApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"method": "POST",
"url": "={{$env.MAX_API_URL}}/messages?access_token={{$env.MAX_BOT_TOKEN}}&user_id={{$json.external_id}}",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "Content-Type",
"value": "application/json"
}
]
},
"sendBody": true,
"specifyBody": "json",
"jsonBody": "={ \"text\": \"\ud83c\udfca \u041b\u0435\u0442\u043e \u043d\u0430 \u043f\u043e\u0440\u043e\u0433\u0435 \u2014 \u0437\u0430\u043f\u0443\u0441\u0442\u0438\u043c \u0432\u0430\u0448 \u0431\u0430\u0441\u0441\u0435\u0439\u043d \u00ab\u043f\u043e\u0434 \u043a\u043b\u044e\u0447\u00bb! \u0417\u0430\u043f\u0438\u0441\u0430\u0442\u044c?\" }"
},
"name": "HTTP (MAX send)",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
1340,
400
]
},
{
"parameters": {
"operation": "executeQuery",
"query": "insert into public.campaign_recipients (campaign_id, contact_id, channel, status, sent_at)\nselect c.id, '{{$json.contact_id}}'::uuid, '{{$json.channel}}'::messenger_channel, 'sent', now()\n from public.campaigns c where c.code = 'seasonal_pool_open'\non conflict (campaign_id, contact_id, channel) do update set status='sent', sent_at=now();"
},
"name": "Postgres (mark sent)",
"type": "n8n-nodes-base.postgres",
"typeVersion": 2.4,
"position": [
1560,
300
],
"credentials": {
"postgres": {
"name": "<your credential>"
}
}
}
],
"connections": {
"Cron (May 1 & 15, 10:00 MSK)": {
"main": [
[
{
"node": "Postgres (segment)",
"type": "main",
"index": 0
}
]
]
},
"Postgres (segment)": {
"main": [
[
{
"node": "SplitInBatches (15)",
"type": "main",
"index": 0
}
]
]
},
"SplitInBatches (15)": {
"main": [
[
{
"node": "Wait (2s)",
"type": "main",
"index": 0
}
]
]
},
"Wait (2s)": {
"main": [
[
{
"node": "IF (telegram?)",
"type": "main",
"index": 0
}
]
]
},
"IF (telegram?)": {
"main": [
[
{
"node": "Telegram (send)",
"type": "main",
"index": 0
}
],
[
{
"node": "HTTP (MAX send)",
"type": "main",
"index": 0
}
]
]
},
"Telegram (send)": {
"main": [
[
{
"node": "Postgres (mark sent)",
"type": "main",
"index": 0
}
]
]
},
"HTTP (MAX send)": {
"main": [
[
{
"node": "Postgres (mark sent)",
"type": "main",
"index": 0
}
]
]
}
},
"settings": {
"executionOrder": "v1"
},
"active": false,
"tags": [
"premium",
"campaigns",
"pool"
]
}
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.
postgrestelegramApi
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About this workflow
Premium / Seasonal pool open (cron). Uses postgres, telegram, httpRequest. Scheduled trigger; 8 nodes.
Source: https://github.com/alexdmitrievi/Podryad_PRO/blob/main/n8n/workflows/03-seasonal-pool.json — original creator credit. Request a take-down →
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