{ "id": "xVUJ5eOUjRLO1M3p", "meta": { "builderVariant": "mcp", "aiBuilderAssisted": true }, "name": "Analyze Facebook post comments sentiment with OpenAI and Google Sheets", "tags": [], "nodes": [ { "id": "d612e40f-eb0a-49fb-8bd0-79b5c3c5e5ba", "name": "Run Manually", "type": "n8n-nodes-base.manualTrigger", "position": [ 0, 192 ], "parameters": {}, "typeVersion": 1 }, { "id": "69438f04-3a1f-4eda-8f63-938e75e5f943", "name": "Configuration", "type": "n8n-nodes-base.set", "position": [ 224, 192 ], "parameters": { "options": {}, "assignments": { "assignments": [ { "id": "cfg-1", "name": "facebook_post_id", "type": "string", "value": "<__PLACEHOLDER_VALUE__Your Facebook Page Post ID, e.g. 123456789012345_678901234567890__>" }, { "id": "cfg-2", "name": "sentiment_categories", "type": "string", "value": "Positive, Neutral, Negative" }, { "id": "cfg-3", "name": "openai_model", "type": "string", "value": "gpt-5-mini" }, { "id": "cfg-4", "name": "batch_size", "type": "number", "value": 5 }, { "id": "cfg-5", "name": "wait_seconds", "type": "number", "value": 2 }, { "id": "cfg-6", "name": "max_pages", "type": "number", "value": 20 }, { "id": "cfg-7", "name": "spreadsheet_id", "type": "string", "value": "<__PLACEHOLDER_VALUE__Your Google Sheet ID (from the sheet URL)__>" }, { "id": "cfg-8", "name": "sheet_name", "type": "string", "value": "<__PLACEHOLDER_VALUE__Your sheet/tab name, e.g. Comments__>" }, { "id": "cfg-9", "name": "summary_recipient_email", "type": "string", "value": "<__PLACEHOLDER_VALUE__Email address to receive the sentiment summary report__>" } ] } }, "typeVersion": 3.4 }, { "id": "2dc1b83b-b38a-4024-af0f-07f0517d4fb3", "name": "Get Facebook Post", "type": "n8n-nodes-base.facebookGraphApi", "position": [ 448, 192 ], "parameters": { "node": "={{ $('Configuration').item.json.facebook_post_id }}", "options": { "fields": { "field": [ { "name": "id,message,created_time,permalink_url" } ] } }, "graphApiVersion": "v21.0" }, "typeVersion": 1 }, { "id": "32a8fbff-2be6-450a-85e1-9a3f3a4bcbff", "name": "Get Facebook Comments Page", "type": "n8n-nodes-base.facebookGraphApi", "position": [ 672, 192 ], "parameters": { "edge": "comments", "node": "={{ $('Configuration').item.json.facebook_post_id }}", "options": { "fields": { "field": [ { "name": "id,from,message,created_time,comment_count" } ] }, "queryParameters": { "parameter": [ { "name": "order", "value": "reverse_chronological" }, { "name": "after", "value": "={{ $json.after || '' }}" }, { "name": "summary", "value": "true" } ] } }, "graphApiVersion": "v21.0" }, "typeVersion": 1 }, { "id": "33b48fb5-de65-4779-909a-ef12538e44dd", "name": "Has Next Page?", "type": "n8n-nodes-base.if", "position": [ 896, 0 ], "parameters": { "options": {}, "conditions": { "options": { "version": 3, "leftValue": "", "caseSensitive": true, "typeValidation": "strict" }, "combinator": "and", "conditions": [ { "id": "cond-1", "operator": { "type": "string", "operation": "exists", "singleValue": true }, "leftValue": "={{ $('Get Facebook Comments Page').item.json.paging.cursors.after }}", "rightValue": "" }, { "id": "cond-2", "operator": { "type": "number", "operation": "lt" }, "leftValue": "={{ $json.page_count || 0 }}", "rightValue": "={{ $('Configuration').item.json.max_pages }}" } ] } }, "typeVersion": 2.3 }, { "id": "12aee985-478b-4052-a176-b081f41a9a1b", "name": "Set Next Page Cursor", "type": "n8n-nodes-base.set", "position": [ 1120, 176 ], "parameters": { "options": {}, "assignments": { "assignments": [ { "id": "np-1", "name": "after", "type": "string", "value": "={{ $json.paging.cursors.after }}" }, { "id": "np-2", "name": "page_count", "type": "number", "value": "={{ ($json.page_count || 0) + 1 }}" } ] } }, "typeVersion": 3.4 }, { "id": "df462f16-1b4d-473e-a153-c33d71830add", "name": "Call 'Analyze Comments Batch'", "type": "n8n-nodes-base.executeWorkflow", "position": [ 896, 192 ], "parameters": { "options": { "waitForSubWorkflow": true }, "workflowId": { "__rl": true, "mode": "id", "value": "xVUJ5eOUjRLO1M3p", "cachedResultName": "Analyze Facebook post comments sentiment with OpenAI and Google Sheets" }, "workflowInputs": { "value": { "post_id": "={{ $('Configuration').item.json.facebook_post_id }}", "comments": "={{ $('Get Facebook Comments Page').item.json.data }}", "batch_size": "={{ $('Configuration').item.json.batch_size }}", "sheet_name": "={{ $('Configuration').item.json.sheet_name }}", "openai_model": "={{ $('Configuration').item.json.openai_model }}", "wait_seconds": "={{ $('Configuration').item.json.wait_seconds }}", "spreadsheet_id": "={{ $('Configuration').item.json.spreadsheet_id }}", "sentiment_categories": "={{ $('Configuration').item.json.sentiment_categories }}", "summary_recipient_email": "={{ $('Configuration').item.json.summary_recipient_email }}" }, "schema": [ { "id": "comments", "type": "array", "display": true, "required": false, "displayName": "comments", "defaultMatch": false, "canBeUsedToMatch": true }, { "id": "post_id", "type": "string", "display": true, "required": false, "displayName": "post_id", "defaultMatch": false, "canBeUsedToMatch": true }, { "id": "sentiment_categories", "type": "string", "display": true, "required": false, "displayName": "sentiment_categories", "defaultMatch": false, "canBeUsedToMatch": true }, { "id": "openai_model", "type": "string", "display": true, "required": false, "displayName": "openai_model", "defaultMatch": false, "canBeUsedToMatch": true }, { "id": "batch_size", "type": "number", "display": true, "required": false, "displayName": "batch_size", "defaultMatch": false, "canBeUsedToMatch": true }, { "id": "wait_seconds", "type": "number", "display": true, "required": false, "displayName": "wait_seconds", "defaultMatch": false, "canBeUsedToMatch": true }, { "id": "spreadsheet_id", "type": "string", "display": true, "required": false, "displayName": "spreadsheet_id", "defaultMatch": false, "canBeUsedToMatch": true }, { "id": "sheet_name", "type": "string", "display": true, "required": false, "displayName": "sheet_name", "defaultMatch": false, "canBeUsedToMatch": true }, { "id": "summary_recipient_email", "type": "string", "display": true, "required": false, "displayName": "summary_recipient_email", "defaultMatch": false, "canBeUsedToMatch": true } ], "mappingMode": "defineBelow", "matchingColumns": [], "attemptToConvertTypes": false, "convertFieldsToString": true } }, "typeVersion": 1.3 }, { "id": "8afad4e7-dcc6-4aeb-9a32-d66ed540b1fa", "name": "When Executed by Another Workflow", "type": "n8n-nodes-base.executeWorkflowTrigger", "position": [ 0, 720 ], "parameters": { "workflowInputs": { "values": [ { "name": "comments", "type": "array" }, { "name": "post_id" }, { "name": "sentiment_categories" }, { "name": "openai_model" }, { "name": "batch_size", "type": "number" }, { "name": "wait_seconds", "type": "number" }, { "name": "spreadsheet_id" }, { "name": "sheet_name" }, { "name": "summary_recipient_email" } ] } }, "typeVersion": 1.2 }, { "id": "94c4660f-d67a-48e5-92f9-a33ee685e93d", "name": "Split Out Each Comment", "type": "n8n-nodes-base.splitOut", "position": [ 224, 720 ], "parameters": { "options": {}, "fieldToSplitOut": "comments" }, "typeVersion": 1 }, { "id": "78014c74-ba09-4e1c-9f55-3f3f48ed11a1", "name": "Read All Comments for This Post", "type": "n8n-nodes-base.googleSheets", "position": [ 736, 416 ], "parameters": { "options": {}, "filtersUI": { "values": [ { "lookupValue": "={{ $('When Executed by Another Workflow').item.json.post_id }}", "lookupColumn": "POST ID" } ] }, "sheetName": { "__rl": true, "mode": "id", "value": "={{ $('When Executed by Another Workflow').item.json.sheet_name }}" }, "documentId": { "__rl": true, "mode": "id", "value": "={{ $('When Executed by Another Workflow').item.json.spreadsheet_id }}" } }, "credentials": { "googleSheetsOAuth2Api": { "name": "" } }, "typeVersion": 4.7 }, { "id": "e3551500-45d4-4854-8c10-cb9d9178a558", "name": "Aggregate Sentiment Values", "type": "n8n-nodes-base.aggregate", "position": [ 1024, 416 ], "parameters": { "options": {}, "fieldsToAggregate": { "fieldToAggregate": [ { "renameField": true, "outputFieldName": "sentiments", "fieldToAggregate": "SENTIMENT" } ] } }, "typeVersion": 1 }, { "id": "233f5f7a-d149-4cd3-9c1d-1514faba6ed8", "name": "Build Summary Report", "type": "n8n-nodes-base.set", "position": [ 1248, 416 ], "parameters": { "options": {}, "assignments": { "assignments": [ { "id": "sum-1", "name": "post_id", "type": "string", "value": "={{ $('When Executed by Another Workflow').item.json.post_id }}" }, { "id": "sum-2", "name": "total_comments", "type": "number", "value": "={{ $json.sentiments.length }}" }, { "id": "sum-3", "name": "positive_count", "type": "number", "value": "={{ $json.sentiments.filter(s => s === 'Positive').length }}" }, { "id": "sum-4", "name": "neutral_count", "type": "number", "value": "={{ $json.sentiments.filter(s => s === 'Neutral').length }}" }, { "id": "sum-5", "name": "negative_count", "type": "number", "value": "={{ $json.sentiments.filter(s => s === 'Negative').length }}" }, { "id": "sum-6", "name": "generated_at", "type": "string", "value": "={{ $now.toISO() }}" } ] } }, "typeVersion": 3.4 }, { "id": "5a5ffdb0-e043-46a8-a136-eab6f8fafaaa", "name": "Send Sentiment Summary Email", "type": "n8n-nodes-base.gmail", "position": [ 1472, 416 ], "parameters": { "sendTo": "={{ $('When Executed by Another Workflow').item.json.summary_recipient_email }}", "message": "=

Facebook Comments Sentiment Report

Post ID: {{ $json.post_id }}

Total comments analyzed: {{ $json.total_comments }}

Generated at {{ $json.generated_at }}

", "options": {}, "subject": "=Facebook comments sentiment report - post {{ $json.post_id }}" }, "credentials": { "gmailOAuth2": { "name": "" } }, "typeVersion": 2.2 }, { "id": "92136cfa-e163-4a31-be05-a819c665d6d8", "name": "Analyze Comment Sentiment", "type": "@n8n/n8n-nodes-langchain.sentimentAnalysis", "position": [ 672, 720 ], "parameters": { "options": { "categories": "{{ $('When Executed by Another Workflow').item.json.sentiment_categories }}", "systemPromptTemplate": "You are highly intelligent and accurate sentiment analyzer. Analyze the sentiment of the provided text. Categorize it into one of the following: {categories}. Use the provided formatting instructions. Only output the JSON." }, "inputText": "={{ $json.comments.message || 'empty' }}" }, "typeVersion": 1.1 }, { "id": "bb22a249-1fab-47d9-9e70-3d2f9dd8a2c3", "name": "OpenAI Chat Model", "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi", "position": [ 752, 944 ], "parameters": { "model": { "__rl": true, "mode": "id", "value": "={{ $('When Executed by Another Workflow').item.json.openai_model }}" }, "options": {}, "builtInTools": {} }, "credentials": { "openAiApi": { "name": "" } }, "typeVersion": 1.3 }, { "id": "17122d2e-0f17-4ad3-a642-eec3cc3974b4", "name": "Save Comment to Google Sheets", "type": "n8n-nodes-base.googleSheets", "position": [ 1024, 720 ], "parameters": { "columns": { "value": { "COMMENT": "={{ $json.comments.message }}", "POST ID": "={{ $('When Executed by Another Workflow').item.json.post_id }}", "SENTIMENT": "={{ $json.sentimentAnalysis.category }}", "COMMENT ID": "={{ $json.comments.id }}" }, "schema": [ { "id": "POST ID", "type": "string", "display": true, "required": false, "displayName": "POST ID", "defaultMatch": false, "canBeUsedToMatch": true }, { "id": "COMMENT ID", "type": "string", "display": true, "required": false, "displayName": "COMMENT ID", "defaultMatch": false, "canBeUsedToMatch": true }, { "id": "COMMENT", "type": "string", "display": true, "required": false, "displayName": "COMMENT", "defaultMatch": false, "canBeUsedToMatch": false }, { "id": "SENTIMENT", "type": "string", "display": true, "required": false, "displayName": "SENTIMENT", "defaultMatch": false, "canBeUsedToMatch": false } ], "mappingMode": "defineBelow", "matchingColumns": [ "COMMENT ID" ] }, "options": {}, "operation": "appendOrUpdate", "sheetName": { "__rl": true, "mode": "id", "value": "={{ $('When Executed by Another Workflow').item.json.sheet_name }}" }, "documentId": { "__rl": true, "mode": "id", "value": "={{ $('When Executed by Another Workflow').item.json.spreadsheet_id }}" } }, "credentials": { "googleSheetsOAuth2Api": { "name": "" } }, "typeVersion": 4.7 }, { "id": "95799a18-7a16-4140-9bcf-b94bc510734b", "name": "Wait to Respect Rate Limits", "type": "n8n-nodes-base.wait", "position": [ 1248, 832 ], "parameters": { "amount": "={{ $('When Executed by Another Workflow').item.json.wait_seconds }}" }, "typeVersion": 1.1 }, { "id": "ebe329ae-b78e-47a7-900e-0c3d4e15ff29", "name": "Loop Over Comments", "type": "n8n-nodes-base.splitInBatches", "position": [ 448, 720 ], "parameters": { "options": {}, "batchSize": "={{ $('When Executed by Another Workflow').item.json.batch_size }}" }, "typeVersion": 3 }, { "id": "337182a2-e2e0-4c09-b2cd-166da35b8a8d", "name": "Sticky Note 36d3f48e", "type": "n8n-nodes-base.stickyNote", "position": [ 1744, -240 ], "parameters": { "color": 4, "width": 800, "height": 1812, "content": "# Analyze Facebook post comments sentiment with OpenAI\n# \ud83d\udce5 [Open full documentation on Notion](https://automatisation.notion.site/Course-Analyze-Facebook-post-comments-sentiment-with-OpenAI-and-Google-Sheets-3a03d6550fd981f6877ffb117c95a816)\n\n## How it works\nThis workflow fetches all comments on one of your Facebook Page posts, analyzes each comment's sentiment with OpenAI, saves the results to Google Sheets, and emails you a summary report once every comment has been processed.\n\nTwo entry points live in this single file: a Manual Trigger that fetches the post and paginates through all its comments, and an Execute Workflow Trigger that this same workflow calls on itself to batch-process each page of comments (sentiment analysis + sheet write + summary email). This keeps the whole template in one importable JSON file.\n\n## Setup\n1. Add your Facebook Graph API credentials to both Facebook nodes.\n2. Add your OpenAI credentials to the OpenAI Chat Model node.\n3. Add your Google Sheets credentials and pick your spreadsheet + tab.\n4. Add your Gmail credentials for the summary report.\n5. Open the \"Call 'Analyze Comments Batch'\" node and set its Workflow to THIS workflow (self-reference) once it has been saved.\n6. Fill in the Configuration node: Facebook Post ID, Google Sheet ID, sheet/tab name, and the email that should receive the summary.\n\n## Requirements\n- A Facebook Page and a Post ID you have access to (Facebook Graph API credential)\n- OpenAI account\n- A Google Sheet with columns: POST ID, COMMENT ID, COMMENT, SENTIMENT\n- Gmail account to receive the summary\n\n## Customization\n- Adjust `sentiment_categories`, `batch_size`, `wait_seconds` and `max_pages` in the Configuration node.\n- Change the OpenAI model in Configuration (`openai_model`).\n\nNeed help customizing?\nContact me for consulting and support : [Linkedin](https://www.linkedin.com/in/doctor-firass/)\n\n# MY NEW YOUTUBE CHANNEL\n\ud83d\udc49 [Subscribe to my new YouTube channel](https://www.youtube.com/@DrFiras_AI). Here I'll share videos and Shorts with practical tutorials and FREE templates for n8n.\n\n[![The AI Doctor](https://www.dr-firas.com/the-ai-doctor.png)](https://www.youtube.com/@DrFiras_AI)" }, "typeVersion": 1 }, { "id": "9341f248-ddb8-4c69-aa1a-5a152fb501de", "name": "Sticky Note 06f84673", "type": "n8n-nodes-base.stickyNote", "position": [ 128, -48 ], "parameters": { "color": 7, "width": 300, "height": 200, "content": "## STEP 1 - Configure & fetch the post\nSet your Facebook Post ID in Configuration, then fetch the post and its comments (paginated)." }, "typeVersion": 1 }, { "id": "9b722312-293f-4568-93f1-93573f020085", "name": "Sticky Note 6b5780ca", "type": "n8n-nodes-base.stickyNote", "position": [ 448, -48 ], "parameters": { "color": 7, "width": 300, "height": 200, "content": "## STEP 2 - Pagination\nLoops back automatically while Facebook still has more comment pages (capped by `max_pages`)." }, "typeVersion": 1 }, { "id": "3ba7173d-1447-42ce-9526-ac3ec1117a53", "name": "Sticky Note eef625f9", "type": "n8n-nodes-base.stickyNote", "position": [ 768, -224 ], "parameters": { "color": 7, "width": 476, "height": 200, "content": "## STEP 3 - Hand off each page for analysis\nCalls this same workflow on itself so the batch logic stays modular in one file." }, "typeVersion": 1 }, { "id": "6649b8f5-27ea-4b0c-8542-c09746b63c91", "name": "Sticky Note 7b678bd0", "type": "n8n-nodes-base.stickyNote", "position": [ -368, 704 ], "parameters": { "color": 7, "width": 300, "height": 248, "content": "## STEP 4 - Analyze & save each comment\nOpenAI classifies sentiment; results are appended/updated in Google Sheets; a short wait avoids rate limits." }, "typeVersion": 1 }, { "id": "2354655b-c17c-4eb4-b7c6-f45df91dd654", "name": "Sticky Note 85e74c1e", "type": "n8n-nodes-base.stickyNote", "position": [ 336, 416 ], "parameters": { "color": 7, "width": 300, "height": 200, "content": "## STEP 5 - Executive summary email\nOnce all comments in the page are processed, reads the sheet back, tallies sentiment, and emails you the report." }, "typeVersion": 1 } ], "active": false, "settings": { "binaryMode": "separate", "availableInMCP": true, "executionOrder": "v1" }, "versionId": "efc65fbd-7386-488d-b450-b153a5d5d7f4", "nodeGroups": [], "connections": { "Run Manually": { "main": [ [ { "node": "Configuration", "type": "main", "index": 0 } ] ] }, "Configuration": { "main": [ [ { "node": "Get Facebook Post", "type": "main", "index": 0 } ] ] }, "Has Next Page?": { "main": [ [ { "node": "Set Next Page Cursor", "type": "main", "index": 0 } ] ] }, "Get Facebook Post": { "main": [ [ { "node": "Get Facebook Comments Page", "type": "main", "index": 0 } ] ] }, "OpenAI Chat Model": { "ai_languageModel": [ [ { "node": "Analyze Comment Sentiment", "type": "ai_languageModel", "index": 0 } ] ] }, "Loop Over Comments": { "main": [ [ { "node": "Read All Comments for This Post", "type": "main", "index": 0 } ], [ { "node": "Analyze Comment Sentiment", "type": "main", "index": 0 } ] ] }, "Build Summary Report": { "main": [ [ { "node": "Send Sentiment Summary Email", "type": "main", "index": 0 } ] ] }, "Set Next Page Cursor": { "main": [ [ { "node": "Get Facebook Comments Page", "type": "main", "index": 0 } ] ] }, "Split Out Each Comment": { "main": [ [ { "node": "Loop Over Comments", "type": "main", "index": 0 } ] ] }, "Analyze Comment Sentiment": { "main": [ [ { "node": "Save Comment to Google Sheets", "type": "main", "index": 0 } ] ] }, "Aggregate Sentiment Values": { "main": [ [ { "node": "Build Summary Report", "type": "main", "index": 0 } ] ] }, "Get Facebook Comments Page": { "main": [ [ { "node": "Has Next Page?", "type": "main", "index": 0 }, { "node": "Call 'Analyze Comments Batch'", "type": "main", "index": 0 } ] ] }, "Wait to Respect Rate Limits": { "main": [ [ { "node": "Loop Over Comments", "type": "main", "index": 0 } ] ] }, "Save Comment to Google Sheets": { "main": [ [ { "node": "Wait to Respect Rate Limits", "type": "main", "index": 0 } ] ] }, "Read All Comments for This Post": { "main": [ [ { "node": "Aggregate Sentiment Values", "type": "main", "index": 0 } ] ] }, "When Executed by Another Workflow": { "main": [ [ { "node": "Split Out Each Comment", "type": "main", "index": 0 } ] ] } } }