This workflow follows the Execute Workflow Trigger → HTTP Request recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
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{
"name": "SlideAI \u2014 07 Output Pipeline",
"active": false,
"nodes": [
{
"id": "ewt-o",
"name": "When Called by Another Workflow",
"type": "n8n-nodes-base.executeWorkflowTrigger",
"typeVersion": 1,
"position": [
0,
0
],
"parameters": {}
},
{
"id": "get-proj-o",
"name": "Get Project for Output",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4,
"position": [
280,
0
],
"parameters": {
"url": "=https://yqpvjtwldnkoersgqoti.supabase.co/rest/v1/projects?id=eq.{{ $json.project_id }}&select=*",
"method": "GET",
"authentication": "predefinedCredentialType",
"nodeCredentialType": "supabaseApi",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "Content-Type",
"value": "application/json"
},
{
"name": "Prefer",
"value": "return=representation"
}
]
},
"options": {}
},
"credentials": {
"supabaseApi": {
"name": "<your credential>"
}
}
},
{
"id": "export-agent",
"name": "Export Agent \u2014 FastAPI (PPTX/PDF/HTML)",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4,
"position": [
560,
0
],
"parameters": {
"url": "http://fastapi:8000/export",
"method": "POST",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "Content-Type",
"value": "application/json"
}
]
},
"sendBody": true,
"specifyBody": "string",
"body": "={\"project_id\":\"{{ $json.project_id }}\"}",
"options": {}
}
},
{
"id": "walkthrough-agent",
"name": "Walk Through Agent \u2014 Groq",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4,
"position": [
840,
0
],
"parameters": {
"url": "https://api.groq.com/openai/v1/chat/completions",
"method": "POST",
"authentication": "predefinedCredentialType",
"nodeCredentialType": "groqApi",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "Content-Type",
"value": "application/json"
}
]
},
"sendBody": true,
"specifyBody": "string",
"body": "={{ JSON.stringify({ model: 'llama-3.3-70b-versatile', temperature: 0.7, max_tokens: 4096, messages: [{ role: 'system', content: \"You are a presentation coach. Generate a timed speaker script. Return JSON only: {\\\"total_minutes\\\":0,\\\"sections\\\":[{\\\"slide_order\\\":1,\\\"duration_seconds\\\":60,\\\"script\\\":\\\"...\\\"}]}\" }, { role: 'user', content: `Generate a timed ${$('Get Project for Output').first().json.duration_mins}-minute walkthrough script for: ${$('Get Project for Output').first().json.topic}` }] }) }}",
"options": {}
},
"credentials": {
"groqApi": {
"name": "<your credential>"
}
}
},
{
"id": "qa-agent",
"name": "Q&A Generation Agent \u2014 Groq",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4,
"position": [
1120,
0
],
"parameters": {
"url": "https://api.groq.com/openai/v1/chat/completions",
"method": "POST",
"authentication": "predefinedCredentialType",
"nodeCredentialType": "groqApi",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "Content-Type",
"value": "application/json"
}
]
},
"sendBody": true,
"specifyBody": "string",
"body": "={{ JSON.stringify({ model: 'llama-3.3-70b-versatile', temperature: 0.7, max_tokens: 4096, messages: [{ role: 'system', content: \"You are a Q&A preparation expert. Return JSON only: {\\\"technical\\\":[{\\\"q\\\":\\\"\\\",\\\"a\\\":\\\"\\\"}],\\\"non_technical\\\":[{\\\"q\\\":\\\"\\\",\\\"a\\\":\\\"\\\"\"}]}\" }, { role: 'user', content: `Generate 10 Q&A pairs for: ${$('Get Project for Output').first().json.topic}. Audience: ${$('Get Project for Output').first().json.audience}` }] }) }}",
"options": {}
},
"credentials": {
"groqApi": {
"name": "<your credential>"
}
}
},
{
"id": "save-walkthrough",
"name": "Save Walkthrough Script",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4,
"position": [
1400,
0
],
"parameters": {
"url": "https://yqpvjtwldnkoersgqoti.supabase.co/rest/v1/walkthrough_scripts",
"method": "POST",
"authentication": "predefinedCredentialType",
"nodeCredentialType": "supabaseApi",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "Content-Type",
"value": "application/json"
},
{
"name": "Prefer",
"value": "return=representation"
}
]
},
"sendBody": true,
"specifyBody": "string",
"body": "={{ JSON.stringify({project_id:$('When Called by Another Workflow').first().json.project_id, script_data:$('Walk Through Agent \u2014 Groq').first().json.choices[0].message.content, total_minutes:$('Get Project for Output').first().json.duration_mins}) }}",
"options": {}
},
"credentials": {
"supabaseApi": {
"name": "<your credential>"
}
}
},
{
"id": "package-agent",
"name": "Package Agent \u2014 FastAPI (ZIP)",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4,
"position": [
1680,
0
],
"parameters": {
"url": "http://fastapi:8000/package",
"method": "POST",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "Content-Type",
"value": "application/json"
}
]
},
"sendBody": true,
"specifyBody": "string",
"body": "={\"project_id\":\"{{ $('When Called by Another Workflow').first().json.project_id }}\"}",
"options": {}
}
},
{
"id": "upd-done",
"name": "Set Status \u2192 done",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4,
"position": [
1960,
0
],
"parameters": {
"url": "=https://yqpvjtwldnkoersgqoti.supabase.co/rest/v1/projects?id=eq.{{ $('When Called by Another Workflow').first().json.project_id }}",
"method": "PATCH",
"authentication": "predefinedCredentialType",
"nodeCredentialType": "supabaseApi",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "Content-Type",
"value": "application/json"
},
{
"name": "Prefer",
"value": "return=representation"
}
]
},
"sendBody": true,
"specifyBody": "string",
"body": "={\"status\":\"done\"}",
"options": {}
},
"credentials": {
"supabaseApi": {
"name": "<your credential>"
}
}
},
{
"id": "log-agents",
"name": "Log Agent Runs",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4,
"position": [
2240,
0
],
"parameters": {
"url": "https://yqpvjtwldnkoersgqoti.supabase.co/rest/v1/agent_runs",
"method": "POST",
"authentication": "predefinedCredentialType",
"nodeCredentialType": "supabaseApi",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "Content-Type",
"value": "application/json"
},
{
"name": "Prefer",
"value": "return=representation"
}
]
},
"sendBody": true,
"specifyBody": "string",
"body": "={{ JSON.stringify([\n {project_id:$('When Called by Another Workflow').first().json.project_id,agent_name:'Export Agent',status:'done',completed_at:new Date().toISOString()},\n {project_id:$('When Called by Another Workflow').first().json.project_id,agent_name:'Walk Through Agent',status:'done',completed_at:new Date().toISOString()},\n {project_id:$('When Called by Another Workflow').first().json.project_id,agent_name:'Q&A Generation Agent',status:'done',completed_at:new Date().toISOString()},\n {project_id:$('When Called by Another Workflow').first().json.project_id,agent_name:'Package Agent',status:'done',completed_at:new Date().toISOString()}\n]) }}",
"options": {}
},
"credentials": {
"supabaseApi": {
"name": "<your credential>"
}
}
}
],
"connections": {
"When Called by Another Workflow": {
"main": [
[
{
"node": "Get Project for Output",
"type": "main",
"index": 0
}
]
]
},
"Get Project for Output": {
"main": [
[
{
"node": "Export Agent \u2014 FastAPI (PPTX/PDF/HTML)",
"type": "main",
"index": 0
}
]
]
},
"Export Agent \u2014 FastAPI (PPTX/PDF/HTML)": {
"main": [
[
{
"node": "Walk Through Agent \u2014 Groq",
"type": "main",
"index": 0
}
]
]
},
"Walk Through Agent \u2014 Groq": {
"main": [
[
{
"node": "Q&A Generation Agent \u2014 Groq",
"type": "main",
"index": 0
}
]
]
},
"Q&A Generation Agent \u2014 Groq": {
"main": [
[
{
"node": "Save Walkthrough Script",
"type": "main",
"index": 0
}
]
]
},
"Save Walkthrough Script": {
"main": [
[
{
"node": "Package Agent \u2014 FastAPI (ZIP)",
"type": "main",
"index": 0
}
]
]
},
"Package Agent \u2014 FastAPI (ZIP)": {
"main": [
[
{
"node": "Set Status \u2192 done",
"type": "main",
"index": 0
}
]
]
},
"Set Status \u2192 done": {
"main": [
[
{
"node": "Log Agent Runs",
"type": "main",
"index": 0
}
]
]
}
},
"settings": {
"executionOrder": "v1"
}
}
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.
groqApisupabaseApi
Pro
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About this workflow
SlideAI — 07 Output Pipeline. Uses executeWorkflowTrigger, httpRequest. Event-driven trigger; 9 nodes.
Source: https://github.com/rinoyfrancis2/presentation-generator-ai/blob/52d6c7c36a046155f12476db39f7a778a28322c1/n8n-workflows/07-output-pipeline.json — original creator credit. Request a take-down →
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