{
"name": "Auto-generate social OG images per blog post with Rendex Render Link",
"nodes": [
{
"parameters": {
"content": "## ๐ผ๏ธ Dynamic OG images โ powered by Rendex Render Link\n\n**Who it's for:** blogs, docs, and marketing sites that want a branded social preview image for every post โ without opening a design tool.\n\n**What it does:** builds a branded OG card from the post's title + author and mints a **hosted, signed image URL** with Rendex **Render Link**. Drop that URL straight into your `og:image` tag โ no upload step, no storage to manage.\n\n**How it works:**\n1. A trigger supplies the post data (here Manual + sample **Post Data** โ swap in an RSS trigger, a CMS webhook, or a new Google Sheets row)\n2. **Rendex โ Render Link** returns a signed, auto-caching image URL (`{{ $json.url }}`)\n3. **Set og:image** exposes that URL, ready to write back to your CMS / Sheet\n\n**How to use:**\n1. Install `n8n-nodes-rendex` and add your **Rendex API** credential (free key at rendex.dev)\n2. Swap the trigger for your post source\n3. Wire **og:image** into your CMS update / Sheets write node\n\n๐ Docs: https://rendex.dev/docs/n8n",
"height": 460,
"width": 430
},
"id": "sticky-overview",
"name": "Overview",
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [-370, 120]
},
{
"parameters": {
"content": "### 1 ยท Post source\nReplace Manual + Post Data with your real source โ an **RSS Feed Trigger**, a CMS webhook, or a new **Google Sheets** row. Output a `title` and `author`.",
"height": 300,
"width": 300,
"color": 4
},
"id": "sticky-source",
"name": "Source note",
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [110, 120]
},
{
"parameters": {},
"id": "manual-trigger",
"name": "When clicking Test",
"type": "n8n-nodes-base.manualTrigger",
"typeVersion": 1,
"position": [170, 320]
},
{
"parameters": {
"assignments": {
"assignments": [
{ "id": "b1", "name": "title", "value": "How we cut render times by 40%", "type": "string" },
{ "id": "b2", "name": "author", "value": "Jane Doe", "type": "string" }
]
},
"options": {}
},
"id": "post-data",
"name": "Post Data",
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [370, 320]
},
{
"parameters": {
"content": "### 2 ยท Mint the OG image URL\nThe **HTML** field is an expression, so `{{ $json.title }}` / `{{ $json.author }}` are injected. **Render Link** returns a signed URL that renders on first hit and caches after โ perfect for `og:image`. Adjust **Link Expiry** for how long it stays valid.",
"height": 320,
"width": 340,
"color": 5
},
"id": "sticky-render",
"name": "Render note",
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [610, 110]
},
{
"parameters": {
"resource": "screenshot",
"operation": "renderLink",
"source": "html",
"html": "=\n\n \n \n {{ $json.title }}
\n \n {{ $json.author }}\n yourcompany.com\n
\n \n",
"format": "png",
"expiresIn": 2592000,
"additionalOptions": {
"width": 1200,
"height": 630
}
},
"id": "rendex-render-link",
"name": "Rendex โ Render Link",
"type": "n8n-nodes-rendex.rendex",
"typeVersion": 1,
"position": [690, 320]
},
{
"parameters": {
"content": "### 3 ยท Use the URL\n`{{ $json.url }}` is your `og:image`. Wire this into an **HTTP Request** (CMS update), a **Google Sheets** write, or a **WordPress** node to publish the preview image with the post.",
"height": 300,
"width": 300,
"color": 3
},
"id": "sticky-use",
"name": "Use note",
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [980, 120]
},
{
"parameters": {
"assignments": {
"assignments": [
{ "id": "c1", "name": "ogImage", "value": "={{ $json.url }}", "type": "string" }
]
},
"options": {}
},
"id": "set-og",
"name": "Set og:image",
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [1040, 320]
}
],
"connections": {
"When clicking Test": {
"main": [[{ "node": "Post Data", "type": "main", "index": 0 }]]
},
"Post Data": {
"main": [[{ "node": "Rendex โ Render Link", "type": "main", "index": 0 }]]
},
"Rendex โ Render Link": {
"main": [[{ "node": "Set og:image", "type": "main", "index": 0 }]]
}
},
"pinData": {},
"settings": {
"executionOrder": "v1"
},
"meta": {
"instanceId": ""
}
}