WeWeb This workflow corresponds to n8n.io template #7007 — we link there as the canonical source.
This workflow follows the Agent → Chainllm 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": "Fd1PvKuULAbZsQuf",
"meta": {
"templateId": "4968",
"templateCredsSetupCompleted": true
},
"name": "Automated LinkedIn Content Creation with GPT-4 and DALL-E on top of a UI",
"tags": [
{
"id": "d6uTHkmw5JpIUCo4",
"name": "weweb-version",
"createdAt": "2025-07-10T11:32:42.142Z",
"updatedAt": "2025-07-10T11:32:42.142Z"
}
],
"nodes": [
{
"id": "f6716480-5a8c-4f84-9e91-b672b388d4bc",
"name": "OpenAI Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
1120,
-260
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4o-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "06f17fd9-21cf-4540-a3c3-44f0f9c87e2a",
"name": "Structured Output Parser",
"type": "@n8n/n8n-nodes-langchain.outputParserStructured",
"position": [
1320,
-240
],
"parameters": {
"jsonSchemaExample": "[{\n \"title\": \"AI as Your First Content Hire: Why Founders Shouldn't Wait to Outsource Creation\",\n \"rationale\": \"Most solopreneurs delay content scaling because they think hiring a ghostwriter is the next step \u2014 but AI can handle 80% with proper systems. This shifts content from a creative bottleneck to a scalable growth lever.\",\n \"hook\": \"Ghostwriters are outdated. Train GPT once, and it ships LinkedIn gold in your voice daily. Welcome to hands-free thought leadership.\"\n }]"
},
"typeVersion": 1.2
},
{
"id": "3eefe0fd-b856-4b43-ae29-df4876c6545e",
"name": "Content creator",
"type": "@n8n/n8n-nodes-langchain.chainLlm",
"position": [
1080,
160
],
"parameters": {
"text": "=You are a linkedin content creator and copywriter. Given the title {{ $json.body.title }}, the rationale {{ $json.body.rationale }}, and suggested hook: {{ $json.body.hook }}. Generate text content for a linkedin post. Also describe a suitable image for the post.",
"batching": {},
"promptType": "define",
"hasOutputParser": true
},
"typeVersion": 1.7
},
{
"id": "1318cc36-eee8-46f7-9a56-37d9d7cb9a35",
"name": "OpenAI Chat Model1",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
1060,
400
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4o-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "2e59bfdc-e691-4d13-824a-10ab0d5e935c",
"name": "Structured Output Parser1",
"type": "@n8n/n8n-nodes-langchain.outputParserStructured",
"position": [
1228,
380
],
"parameters": {
"jsonSchemaExample": "{\n \"post title\": \"Exciting New Feature Launch \ud83d\ude80\",\n \"post content\": \"After months of collaboration, testing, and fine-tuning, we're thrilled to introduce our latest product feature: Smart Insights. It helps users uncover meaningful patterns in their data with just a few clicks. This wouldn't have been possible without our incredible team and supportive community. We're excited for what's next \u2014 and we'd love your feedback!\",\n \"image description\": \"A laptop screen showcasing the new Smart Insights dashboard with colorful charts and graphs, surrounded by a team clapping in the background.\"\n}"
},
"typeVersion": 1.2
},
{
"id": "dcd07c39-6727-479b-bc65-33dcace9bd82",
"name": "Hashtag generator /SEO",
"type": "@n8n/n8n-nodes-langchain.agent",
"disabled": true,
"position": [
1456,
260
],
"parameters": {
"text": "=You are an SEO specialist for LinkedIn. Your task is to generate highly relevant and effective hashtags for the following post. Consider the post's content, target audience, and current LinkedIn trends to maximize visibility and engagement.\n\n<post_title>{{ $json.output['post title'] }}</post_title>\n<post_content>{{ $json.output['post content'] }}</post_content>\n\nPlease generate:\n1. **3-5 broad, high-volume hashtags** (e.g., #AI, #Marketing, #Business)\n2. **3-5 niche-specific hashtags** that are directly relevant to the post's core topic (e.g., #SocialMediaAutomation, #ContentCreationAI, #LinkedInMarketingTips)\n3. **1-2 trending/topical hashtags** if applicable (e.g., #FutureOfWork, #DigitalTransformation)\n\nPresent them as a comma-separated list.",
"options": {},
"promptType": "define",
"hasOutputParser": true
},
"typeVersion": 2
},
{
"id": "08fcc303-b0ba-4c95-9075-c141c93c6355",
"name": "OpenAI Chat Model2",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
1484,
480
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4o-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "b33b1379-b258-4213-9496-f0c7d5750421",
"name": "Structured Output Parser2",
"type": "@n8n/n8n-nodes-langchain.outputParserStructured",
"position": [
1604,
480
],
"parameters": {
"jsonSchemaExample": "{\n \"post title\": \"Exciting New Feature Launch \ud83d\ude80\",\n \"post content\": \"After months of collaboration, testing, and fine-tuning, we're thrilled to introduce our latest product feature: Smart Insights. It helps users uncover meaningful patterns in their data with just a few clicks. This wouldn't have been possible without our incredible team and supportive community. We're excited for what's next \u2014 and we'd love your feedback!\",\n \"image description\": \"A laptop screen showcasing the new Smart Insights dashboard with colorful charts and graphs, surrounded by a team clapping in the background.\",\n\"Hashtags\":[\"#AI\",\"#Automation\"]\n}"
},
"typeVersion": 1.2
},
{
"id": "841270d3-9773-485e-a445-0a5caa1cd544",
"name": "Respond to Webhook",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
1580,
-540
],
"parameters": {
"options": {},
"respondWith": "json",
"responseBody": "={{ $json.output }}"
},
"typeVersion": 1.3
},
{
"id": "3309ad70-6683-4a95-9f74-7388353992f6",
"name": "Respond to Webhook1",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
1832,
260
],
"parameters": {
"options": {},
"respondWith": "allIncomingItems"
},
"typeVersion": 1.3
},
{
"id": "da0ef4de-963e-40b4-ba39-ba7f6f7fa54f",
"name": "HTTP Request",
"type": "n8n-nodes-base.httpRequest",
"position": [
1080,
1080
],
"parameters": {
"url": "https://api.openai.com/v1/images/generations",
"method": "POST",
"options": {},
"sendBody": true,
"authentication": "predefinedCredentialType",
"bodyParameters": {
"parameters": [
{
"name": "model",
"value": "dall-e-3"
},
{
"name": "prompt",
"value": "={{ $json.body.imgDescription }}"
},
{
"name": "size",
"value": "1024x1024"
},
{
"name": "response_format",
"value": "b64_json"
}
]
},
"nodeCredentialType": "openAiApi"
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
},
"httpBearerAuth": {
"name": "<your credential>"
}
},
"typeVersion": 4.2
},
{
"id": "7e70feb1-1341-4673-9676-d93c791c29b7",
"name": "Respond to Webhook2",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
1300,
1080
],
"parameters": {
"options": {}
},
"typeVersion": 1.3
},
{
"id": "ec50678d-d47a-4435-8665-f390dc409447",
"name": "Generate post with hashtags",
"type": "n8n-nodes-base.webhook",
"position": [
860,
260
],
"parameters": {
"path": "691a4b8d-542c-4d58-af2d-6851c2ba0edf",
"options": {},
"httpMethod": "POST",
"responseMode": "responseNode"
},
"typeVersion": 2
},
{
"id": "b69486be-f649-439a-a851-888945bb333d",
"name": "Generate 6 topics",
"type": "n8n-nodes-base.webhook",
"position": [
780,
-520
],
"parameters": {
"path": "4aebedf5-666f-40a8-925c-5ce8a5a6b967",
"options": {},
"httpMethod": "POST",
"responseMode": "responseNode"
},
"typeVersion": 2
},
{
"id": "343f3302-b180-42b1-888a-98245a331409",
"name": "Generate image",
"type": "n8n-nodes-base.webhook",
"position": [
860,
1080
],
"parameters": {
"path": "61b02992-5fde-4dd6-a7f9-8edc50e1f6c6",
"options": {},
"httpMethod": "POST",
"responseMode": "responseNode"
},
"typeVersion": 2
},
{
"id": "46433d24-5145-484c-b75e-df8db830a2e4",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
360,
-800
],
"parameters": {
"width": 360,
"height": 660,
"content": "## Step 1 - Generate topics\nThis webhook expect two values: \n1. api_key: this should be an OpenAI key \n2. prompt: this should be a detailed prompt giving the AI information about your context\n\nHere's an example of what the API call needs to look like\n\n"
},
"typeVersion": 1
},
{
"id": "9f2bdded-b0ae-490a-ab58-39618f3b3c1d",
"name": "Content topic generator",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
1140,
-540
],
"parameters": {
"text": "={{ $json.body.prompt }}",
"options": {},
"promptType": "define",
"hasOutputParser": true
},
"typeVersion": 2
},
{
"id": "58361897-236b-46d7-8f73-3be0e1a1f9d5",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
1860,
-680
],
"parameters": {
"width": 380,
"height": 520,
"content": "## Output \nThis webhook returns a list of 6 items, each containing a title, hook, and rationale for writing about the topic:\n\n\n\nSave this list in your UI builder so users can edit it and reference it later."
},
"typeVersion": 1
},
{
"id": "e55b4a55-8b7b-445b-af09-70611a05cac7",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
420,
-20
],
"parameters": {
"color": 4,
"width": 380,
"height": 860,
"content": "## Step 2 - Generate a post & related hashtags\nThis webhook expects an OpenAI API key (api_key) and information about the post you want to generate (title, hook, rationale)\n\nThe API call from your UI builder will look something like this:\n\n"
},
"typeVersion": 1
},
{
"id": "1797d890-d60b-43e8-84d2-cab481440df7",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
360,
-1260
],
"parameters": {
"color": 3,
"width": 1020,
"height": 320,
"content": "## Why 3 webhooks? TL;DR: to give users full control over AI outputs\n\nMany n8n templates use an all-in-one AI agent, which is great for saving time. However, we structured this template a bit differently. The goal: give end-users more control over the AI-generated content.\n\nThis template is designed to serve as the backbone of a UI built with an app builder like WeWeb. The interface includes three screens:\n1. Create topics\n2. Edit topics and generate posts\n3. Edit posts and generate images\n\nEach screen has its own dedicated webhook. This ensures users are 100% in control of the content that\u2019s generated and published to their LinkedIn account.\n\nIf you'd like to connect this n8n template directly to a WeWeb UI, it's possible. The WeWeb template is available for free [right here](https://go.weweb.io/zoYeg5g). "
},
"typeVersion": 1
},
{
"id": "3861ae5e-7bed-4c90-a81c-686be1fe2097",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
2080,
140
],
"parameters": {
"color": 4,
"width": 460,
"height": 400,
"content": "## Output\n\nThis webhook returns an item with a post title, post content, and an image description:\n\n\n\nSave this in your UI builder so users can edit and reference it later."
},
"typeVersion": 1
},
{
"id": "9f2ef103-a790-43f8-b176-610ca2413686",
"name": "Sticky Note5",
"type": "n8n-nodes-base.stickyNote",
"position": [
340,
940
],
"parameters": {
"color": 5,
"width": 460,
"height": 800,
"content": "## Step 3 - Generate an image\nThis webhook expects an image description (imgDescription) and an OpenAI key (api_key). \n\nThe API call might looks something like this:\n\n"
},
"typeVersion": 1
},
{
"id": "1fa23c8c-542f-4ba6-88ff-8c93093b7621",
"name": "Sticky Note6",
"type": "n8n-nodes-base.stickyNote",
"position": [
1580,
960
],
"parameters": {
"color": 5,
"width": 460,
"height": 480,
"content": "## Output\nThis webhook returns an image encoded in base64 format:\n\n\n\nYou will need to convert it to a Blob in your frontend to display it."
},
"typeVersion": 1
}
],
"active": true,
"settings": {},
"versionId": "1dfbcd16-3799-4bf6-aeea-f1db4b006d5b",
"connections": {
"HTTP Request": {
"main": [
[
{
"node": "Respond to Webhook2",
"type": "main",
"index": 0
}
]
]
},
"Generate image": {
"main": [
[
{
"node": "HTTP Request",
"type": "main",
"index": 0
}
]
]
},
"Content creator": {
"main": [
[
{
"node": "Hashtag generator /SEO",
"type": "main",
"index": 0
}
]
]
},
"Generate 6 topics": {
"main": [
[
{
"node": "Content topic generator",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "Content topic generator",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"OpenAI Chat Model1": {
"ai_languageModel": [
[
{
"node": "Content creator",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"OpenAI Chat Model2": {
"ai_languageModel": [
[
{
"node": "Hashtag generator /SEO",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Respond to Webhook1": {
"main": [
[]
]
},
"Hashtag generator /SEO": {
"main": [
[
{
"node": "Respond to Webhook1",
"type": "main",
"index": 0
}
]
]
},
"Content topic generator": {
"main": [
[
{
"node": "Respond to Webhook",
"type": "main",
"index": 0
}
]
]
},
"Structured Output Parser": {
"ai_outputParser": [
[
{
"node": "Content topic generator",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"Structured Output Parser1": {
"ai_outputParser": [
[
{
"node": "Content creator",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"Structured Output Parser2": {
"ai_outputParser": [
[
{
"node": "Hashtag generator /SEO",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"Generate post with hashtags": {
"main": [
[
{
"node": "Content creator",
"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.
httpBearerAuthopenAiApi
Pro
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About this workflow
Paired with the free WeWeb UI template, it becomes a ready-to-use web app where users can: Add their own OpenAI API key Customize the prompt and define 6 content topics Edit the AI-generated topics Choose when to generate LinkedIn posts, complete with hashtags and an optional…
Source: https://n8n.io/workflows/7007/ — original creator credit. Request a take-down →
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