Googleシートを使った顧客レビュー感情の自動分析

• •Google Sheets API認証情報

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      "parameters": {
        "jsCode": "const reviewText = $input.first().json['Review Text'];\nconst reviewId = $input.first().json['Review ID'];\n\nlet sentiment = 'Neutral';\nconst positiveKeywords = ['great', 'excellent', 'amazing', 'happy', 'love', 'satisfied', 'good', 'fantastic', 'awesome', 'recommend'];\nconst negativeKeywords = ['bad', 'poor', 'disappointed', 'problem', 'unhappy', 'frustrating', 'issue', 'terrible', 'worst'];\n\nconst lowerCaseReview = reviewText.toLowerCase();\n\nlet positiveCount = 0;\npositiveKeywords.forEach(keyword => {\n    if (lowerCaseReview.includes(keyword)) {\n        positiveCount++;\n    }\n});\n\nlet negativeCount = 0;\nnegativeKeywords.forEach(keyword => {\n    if (lowerCaseReview.includes(keyword)) {\n        negativeCount++;\n    }\n});\n\nif (positiveCount > negativeCount) {\n    sentiment = 'Positive';\n} else if (negativeCount > positiveCount) {\n    sentiment = 'Negative';\n} else if (positiveCount > 0 && negativeCount > 0) {\n    sentiment = 'Mixed'; // For cases with both positive and negative keywords\n}\n\nreturn [{ json: { sentiment: sentiment, reviewId: reviewId } }];"
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          "value": {
            "Review ID": "={{ $json.reviewId }}",
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              "removed": false,
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              "defaultMatch": false,
              "canBeUsedToMatch": true
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            {
              "id": "Customer Name",
              "type": "string",
              "display": true,
              "removed": false,
              "required": false,
              "displayName": "Customer Name",
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              "removed": false,
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              "canBeUsedToMatch": true
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              "displayName": "Sentiment",
              "defaultMatch": false,
              "canBeUsedToMatch": true
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            {
              "id": "Review ID",
              "type": "string",
              "display": true,
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              "displayName": "Review ID",
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          "cachedResultName": "Customer Review "
        }
      },
      "credentials": {
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          "id": "vL25dYTf9oT1CSvl",
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      "typeVersion": 4.6
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    {
      "id": "40bedf02-1897-4b02-b2c6-00e24d3352ff",
      "name": "シート (Google) トリガー",
      "type": "n8n-nodes-base.googleSheetsTrigger",
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        "content": "## Customer Review Sentiment Analyzer (Google Sheets)\n**Author: David Olusola**\n\nThis workflow watches for new rows in a Google Sheet (e.g., where you manually log customer reviews) and uses a Code node to perform a simple sentiment analysis, then updates the same row with the detected sentiment.\n\nUse Case: Quickly gauge customer satisfaction, identify positive/negative trends, and prioritize follow-ups based on sentiment."
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      "parameters": {
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        "content": "## Setup Steps\n\nTo get this workflow up and running, follow these instructions:\n\nStep 1: Create Google Sheets Credentials in n8n\n\nIn your n8n instance, click on Credentials in the left sidebar.\n\nClick New Credential.\n\nSearch for and select \"Google Sheets OAuth2 API\" and follow the authentication steps with your Google account. Save it.\n\nMake note of the Credential Name (e.g., \"My Google Sheets Account\").\n\nStep 2: Make a copy  of the Google Sheet [Customer Review](https://docs.google.com/spreadsheets/d/1XmyKfySCUAgyTgnAU3p0bz22D_ofAPoTAUw2HuBezrM/edit?usp=sharing)"
      },
      "typeVersion": 1
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      "type": "n8n-nodes-base.stickyNote",
      "position": [
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      "parameters": {
        "height": 464,
        "content": "## Activate and Test the Workflow\n\n\nClick the \"Activate\" toggle button in the top right corner of the n8n workflow editor.\n\nGo to your Google Sheet and manually add a new row with a \"Review Text\" (e.g., \"This product is great, I love it!\"). Leave the \"Sentiment\" column empty.\n\nThe workflow should trigger automatically (it polls every minute by default), analyze the sentiment, and update the \"Sentiment\" column in your Google Sheet. You can also manually \"Execute Workflow\" to test immediately."
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