Mauricio Perera This workflow corresponds to n8n.io template #4544 — we link there as the canonical source.
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": "mchujUnGa9RKf7dO",
"meta": {
"templateCredsSetupCompleted": true
},
"name": "Create Workflow via Webhook in n8n",
"tags": [],
"nodes": [
{
"id": "41cfbc58-c8d5-4a22-aec1-72a4b7db3d63",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
-2360,
-2100
],
"parameters": {
"width": 720,
"height": 500,
"content": "1. **Webhook**: it receives a POST at `/webhook/create-workflow` with the workflow JSON.\n2. **Validate JSON**: it runs code that checks the JSON has the fields `name` and `nodes`, and that each node has `id`, `name`, `type`, and `position`. It returns `{ success: true }` if everything is valid, or `{ success: false, message: \"\u2026\" }` if there\u2019s an error.\n3. **Validation Successful?**: it looks at the result from \u201cValidate JSON\u201d and, depending on whether `success` is `true` or `false`, decides to continue creating the workflow or return the error.\n"
},
"typeVersion": 1
},
{
"id": "62c4a402-1397-4aad-82de-c38672a382a7",
"name": "Sticky Note6",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1600,
-1740
],
"parameters": {
"color": 3,
"width": 820,
"height": 360,
"content": "1. **Validation Error**: Sets a JSON response with `success: false` and uses the incoming `$json.message` as the error message when the initial payload validation fails.\n\n2. **API Error**: Sets a JSON response with `success: false`, a fixed `message: \"Error creating workflow\"`, includes the full error payload (`error: JSON.stringify($json)`), and the HTTP `statusCode` from the failed API request.\n"
},
"typeVersion": 1
},
{
"id": "df771acf-ef37-49f9-8a9f-ec60fd955d86",
"name": "Sticky Note7",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1520,
-2320
],
"parameters": {
"width": 720,
"height": 500,
"content": "1. **Create Workflow**: Sends a POST to `/api/v1/workflows` with the validated workflow payload, using header-based authentication.\n2. **API Successful?**: Checks if the HTTP response status code is \u2264 299.\n3. **Success Response**: If the API call succeeded, constructs the final JSON with `success: true`, `workflowId`, `workflowName`, `createdAt`, and the workflow `url`.\n"
},
"typeVersion": 1
},
{
"id": "c798d2a9-577d-4f46-b269-ca2b4447560c",
"name": "Webhook",
"type": "n8n-nodes-base.webhook",
"position": [
-2280,
-1880
],
"parameters": {
"path": "create-workflow",
"options": {},
"httpMethod": "POST",
"responseMode": "lastNode"
},
"notesInFlow": false,
"typeVersion": 1
},
{
"id": "3ca95b00-83b2-4f75-874f-43a27e298bf1",
"name": "Validate JSON",
"type": "n8n-nodes-base.code",
"position": [
-2060,
-1880
],
"parameters": {
"jsCode": "// Validate the received JSON\nconst payload = $input.item.json.body;\n\n// Check that required fields exist\nif (!payload) {\n return {\n json: {\n success: false,\n message: \"No payload received in the request\"\n }\n };\n}\n\n// Ensure correct format for a workflow\nconst requiredFields = ['name', 'nodes'];\nfor (const field of requiredFields) {\n if (!payload[field]) {\n return {\n json: {\n success: false,\n message: `The field '${field}' is required in the workflow`\n }\n };\n }\n}\n\n// Ensure connections and settings exist\nif (!payload.connections) payload.connections = {};\nif (!payload.settings) payload.settings = {};\n\n// Verify that there is at least one node\nif (!Array.isArray(payload.nodes) || payload.nodes.length === 0) {\n return {\n json: {\n success: false,\n message: \"The workflow must have at least one node\"\n }\n };\n}\n\n// Validate each node's required fields\nfor (const node of payload.nodes) {\n const nodeRequiredFields = ['id', 'name', 'type', 'position'];\n for (const field of nodeRequiredFields) {\n if (!node[field]) {\n return {\n json: {\n success: false,\n message: `Node '${node.name || 'unknown'}' is missing required field '${field}'`\n }\n };\n }\n }\n \n // Ensure parameters exists\n if (!node.parameters) node.parameters = {};\n if (!node.typeVersion) node.typeVersion = 1;\n}\n\n// Prepare the workflow object for the API\nconst apiWorkflow = {\n name: payload.name,\n nodes: payload.nodes,\n connections: payload.connections,\n settings: payload.settings\n};\n\n// If everything is valid, proceed\nreturn {\n json: {\n success: true,\n apiWorkflow: apiWorkflow\n }\n};"
},
"typeVersion": 1
},
{
"id": "b3894755-0583-4c00-b574-e993a6f0b08f",
"name": "Validation Successful?",
"type": "n8n-nodes-base.if",
"position": [
-1840,
-1880
],
"parameters": {
"conditions": {
"boolean": [
{
"value1": "={{ $json.success }}",
"value2": true
}
]
}
},
"typeVersion": 1
},
{
"id": "ef3a310b-7673-40cc-985a-4e87dc99de70",
"name": "Create Workflow",
"type": "n8n-nodes-base.httpRequest",
"position": [
-1440,
-2080
],
"parameters": {
"url": "=http://{{ $('Webhook').item.json.headers.host }}/api/v1/workflows",
"options": {},
"authentication": "headerAuth"
},
"credentials": {
"httpHeaderAuth": {
"name": "<your credential>"
}
},
"typeVersion": 1,
"continueOnFail": true
},
{
"id": "7e2c1a11-1d4c-4075-a03c-f6ed93307d19",
"name": "API Successful?",
"type": "n8n-nodes-base.if",
"position": [
-1220,
-2080
],
"parameters": {
"conditions": {
"number": [
{
"value1": "={{ $response.statusCode }}",
"value2": 299,
"operation": "smallerEqual"
}
]
}
},
"typeVersion": 1
},
{
"id": "0371ce73-ccb6-4e87-8620-4aab8529b170",
"name": "Success Response",
"type": "n8n-nodes-base.set",
"position": [
-960,
-2180
],
"parameters": {
"values": {
"string": [
{
"name": "success",
"value": "true"
},
{
"name": "message",
"value": "Workflow created successfully"
},
{
"name": "workflowId",
"value": "={{ $json.data[0].id }}"
},
{
"name": "workflowName",
"value": "={{ $json.data[0].name }}"
},
{
"name": "createdAt",
"value": "={{ $json.data[0].createdAt }}"
},
{
"name": "url",
"value": "=http://localhost:5678/workflow/{{ $json.data[0].id }}"
}
]
},
"options": {}
},
"typeVersion": 1
},
{
"id": "daec93d7-b9d8-4407-93ab-389b705b0c11",
"name": "Validation Error",
"type": "n8n-nodes-base.set",
"position": [
-1500,
-1540
],
"parameters": {
"values": {
"string": [
{
"name": "success",
"value": "false"
},
{
"name": "message",
"value": "={{ $json.message }}"
}
]
},
"options": {}
},
"typeVersion": 1
},
{
"id": "cd2cd403-63c2-42af-a715-9f080067f7d1",
"name": "API Error",
"type": "n8n-nodes-base.set",
"position": [
-920,
-1540
],
"parameters": {
"values": {
"string": [
{
"name": "success",
"value": "false"
},
{
"name": "message",
"value": "Error creating workflow"
},
{
"name": "error",
"value": "={{ JSON.stringify($json) }}"
},
{
"name": "statusCode",
"value": "={{ $response.statusCode }}"
}
]
},
"options": {}
},
"typeVersion": 1
}
],
"active": true,
"settings": {
"executionOrder": "v1"
},
"versionId": "849462be-761a-455e-a99b-ffe52b2249d7",
"connections": {
"Webhook": {
"main": [
[
{
"node": "Validate JSON",
"type": "main",
"index": 0
}
]
]
},
"Validate JSON": {
"main": [
[
{
"node": "Validation Successful?",
"type": "main",
"index": 0
}
]
]
},
"API Successful?": {
"main": [
[
{
"node": "Success Response",
"type": "main",
"index": 0
}
],
[
{
"node": "API Error",
"type": "main",
"index": 0
}
]
]
},
"Create Workflow": {
"main": [
[
{
"node": "API Successful?",
"type": "main",
"index": 0
}
]
]
},
"Validation Successful?": {
"main": [
[
{
"node": "Create Workflow",
"type": "main",
"index": 0
}
],
[
{
"node": "Validation Error",
"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.
httpHeaderAuth
Pro
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About this workflow
This workflow exposes an HTTP endpoint (webhook) that accepts a JSON definition of an n8n workflow, validates it, and—if everything is correct—dynamically creates that workflow in the n8n instance via its internal API. If any validation fails or the API call encounters an error,…
Source: https://n8n.io/workflows/4544/ — original creator credit. Request a take-down →
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