This workflow follows the Datatable → Gmail 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": "Stage B",
"nodes": [
{
"parameters": {
"workflowInputs": {
"values": [
{
"name": "applicantId"
}
]
}
},
"type": "n8n-nodes-base.executeWorkflowTrigger",
"typeVersion": 1.1,
"position": [
-304,
-32
],
"id": "e5900e13-c0b4-478f-947a-24d92d4debec",
"name": "When Executed by Another Workflow"
},
{
"parameters": {
"operation": "select",
"schema": {
"__rl": true,
"mode": "list",
"value": "public"
},
"table": {
"__rl": true,
"value": "applicant",
"mode": "list",
"cachedResultName": "applicant"
},
"where": {
"values": [
{
"column": "id",
"value": "={{ $json.applicantId }}"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.postgres",
"typeVersion": 2.6,
"position": [
-64,
-32
],
"id": "f572061e-cfb3-4961-b3b8-6c3fb1f1f997",
"name": "Select Applicant",
"credentials": {
"postgres": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"workflowId": {
"__rl": true,
"value": "CdX4cQJJWoDSCBT7",
"mode": "list",
"cachedResultUrl": "/workflow/CdX4cQJJWoDSCBT7",
"cachedResultName": "Email Formatter"
},
"workflowInputs": {
"mappingMode": "defineBelow",
"value": {
"keyId": "STAGE_B_TEMPLATE_ID",
"values": "={{ $input.last().json }}"
},
"matchingColumns": [],
"schema": [
{
"id": "keyId",
"displayName": "keyId",
"required": false,
"defaultMatch": false,
"display": true,
"canBeUsedToMatch": true,
"type": "string",
"removed": false
},
{
"id": "values",
"displayName": "values",
"required": false,
"defaultMatch": false,
"display": true,
"canBeUsedToMatch": true,
"type": "object",
"removed": false
}
],
"attemptToConvertTypes": false,
"convertFieldsToString": true
},
"options": {
"waitForSubWorkflow": true
}
},
"type": "n8n-nodes-base.executeWorkflow",
"typeVersion": 1.3,
"position": [
560,
-32
],
"id": "53782785-9930-4748-82fa-a727284dcd08",
"name": "Produce Email"
},
{
"parameters": {
"operation": "get",
"dataTableId": {
"__rl": true,
"value": "wvUDYhfWqI8YbIGS",
"mode": "list",
"cachedResultName": "Configuration",
"cachedResultUrl": "/projects/w1ZISLUlzWcdlJxB/datatables/wvUDYhfWqI8YbIGS"
},
"filters": {
"conditions": [
{
"keyName": "key",
"keyValue": "HKRECRUITMENT_URL"
}
]
}
},
"type": "n8n-nodes-base.dataTable",
"typeVersion": 1.1,
"position": [
144,
-32
],
"id": "3688c0eb-e027-4c36-b233-7a9b120f48df",
"name": "Get row(s)"
},
{
"parameters": {
"jsCode": "const baseUrl = $input.first().json.value;\nconst applicantData = $('Select Applicant').first().json;\nconst { id: applicantId, token } = applicantData;\n\nreturn {\n ...applicantData,\n interviewBookingUrl: `${baseUrl}/interview/book/${applicantId}?token=${token}`\n}"
},
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
352,
-32
],
"id": "7b5580bc-af7b-4940-931e-d18c260d8284",
"name": "Code in JavaScript"
},
{
"parameters": {
"sendTo": "={{ $('Select Applicant').last().json.email }}",
"subject": "[IEEE-HKN]\u00a0Testing",
"message": "={{ $json.emailContents }}",
"options": {
"appendAttribution": false
}
},
"type": "n8n-nodes-base.gmail",
"typeVersion": 2.2,
"position": [
752,
-32
],
"id": "0e3fcaeb-1489-48b0-b1a1-3dc470beb4b8",
"name": "Send a message",
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"workflowId": {
"__rl": true,
"value": "d3pwvH005RdIrKXy",
"mode": "list",
"cachedResultUrl": "/workflow/d3pwvH005RdIrKXy",
"cachedResultName": "Notify"
},
"workflowInputs": {
"mappingMode": "defineBelow",
"value": {
"type": "verbose",
"contents": "={{ JSON.stringify($input.last()) }}"
},
"matchingColumns": [],
"schema": [
{
"id": "type",
"displayName": "type",
"required": false,
"defaultMatch": false,
"display": true,
"canBeUsedToMatch": true,
"type": "string"
},
{
"id": "contents",
"displayName": "contents",
"required": false,
"defaultMatch": false,
"display": true,
"canBeUsedToMatch": true,
"type": "string"
}
],
"attemptToConvertTypes": false,
"convertFieldsToString": true
},
"options": {}
},
"type": "n8n-nodes-base.executeWorkflow",
"typeVersion": 1.3,
"position": [
960,
-128
],
"id": "e211d0c7-6497-46cd-b2d7-d27bfd810466",
"name": "Call 'Notify'"
},
{
"parameters": {
"workflowId": {
"__rl": true,
"value": "d3pwvH005RdIrKXy",
"mode": "list",
"cachedResultUrl": "/workflow/d3pwvH005RdIrKXy",
"cachedResultName": "Notify"
},
"workflowInputs": {
"mappingMode": "defineBelow",
"value": {
"type": "hr",
"contents": "=Inviato Interview Booking a {{ $('Select Applicant').item.json.name }} {{ $('Select Applicant').item.json.surname }} ({{ $('Select Applicant').item.json.email }})"
},
"matchingColumns": [],
"schema": [
{
"id": "type",
"displayName": "type",
"required": false,
"defaultMatch": false,
"display": true,
"canBeUsedToMatch": true,
"type": "string"
},
{
"id": "contents",
"displayName": "contents",
"required": false,
"defaultMatch": false,
"display": true,
"canBeUsedToMatch": true,
"type": "string"
}
],
"attemptToConvertTypes": false,
"convertFieldsToString": true
},
"options": {}
},
"type": "n8n-nodes-base.executeWorkflow",
"typeVersion": 1.3,
"position": [
960,
128
],
"id": "4b617a11-4a87-45e7-b7ac-19b28b8e92b5",
"name": "HR notify"
}
],
"connections": {
"When Executed by Another Workflow": {
"main": [
[
{
"node": "Select Applicant",
"type": "main",
"index": 0
}
]
]
},
"Select Applicant": {
"main": [
[
{
"node": "Get row(s)",
"type": "main",
"index": 0
}
]
]
},
"Get row(s)": {
"main": [
[
{
"node": "Code in JavaScript",
"type": "main",
"index": 0
}
]
]
},
"Code in JavaScript": {
"main": [
[
{
"node": "Produce Email",
"type": "main",
"index": 0
}
]
]
},
"Produce Email": {
"main": [
[
{
"node": "Send a message",
"type": "main",
"index": 0
}
]
]
},
"Send a message": {
"main": [
[
{
"node": "Call 'Notify'",
"type": "main",
"index": 0
},
{
"node": "HR notify",
"type": "main",
"index": 0
}
]
]
},
"HR notify": {
"main": [
[]
]
}
},
"active": true,
"settings": {
"executionOrder": "v1",
"availableInMCP": false
},
"versionId": "2d933b60-8cbc-4824-b73d-842ec97d0504",
"meta": {
"templateCredsSetupCompleted": true
},
"id": "dZmda6G2AnVNAlEX",
"tags": []
}
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.
gmailOAuth2postgres
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About this workflow
Stage B. Uses executeWorkflowTrigger, postgres, dataTable, gmail. Event-driven trigger; 8 nodes.
Source: https://github.com/MuNuChapterHKN/HKrecruitment/blob/2f27f97cc2146df53de7962e71504db1c9d1ed68/n8n/workflows/b.json — original creator credit. Request a take-down →
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