Product Review Sentiment Analyzer API for Node.js

⭐ Analyze product review sentiment with AI — powered by SharpAPI.

SharpAPI Product Review Sentiment Analyzer uses advanced AI to determine if product reviews are positive, negative, or neutral with confidence scores. Perfect for e-commerce platforms, review management, and customer feedback analysis.

📋 Table of Contents

1. Requirements
2. Installation
3. Usage
4. API Documentation
5. Examples
6. License

Requirements

• Node.js >= 16.x
• npm or yarn

Installation

Step 1. Install the package via npm:

npm install @sharpapi/sharpapi-node-product-review-sentiment

Step 2. Get your API key

Visit SharpAPI.com to get your API key.

Usage

const { SharpApiProductReviewSentimentService } = require('@sharpapi/sharpapi-node-product-review-sentiment');

const apiKey = process.env.SHARP_API_KEY; // Store your API key in environment variables
const service = new SharpApiProductReviewSentimentService(apiKey);

const review = `
This product exceeded my expectations! The quality is outstanding and delivery was fast.
I highly recommend it to anyone looking for a reliable solution.
`;

async function analyzeReview() {
  try {
    // Submit sentiment analysis job
    const statusUrl = await service.analyzeSentiment(review);
    console.log('Job submitted. Status URL:', statusUrl);

    // Fetch results (polls automatically until complete)
    const result = await service.fetchResults(statusUrl);
    const sentiment = result.getResultJson();

    console.log('Sentiment:', sentiment.opinion);
    console.log('Confidence:', sentiment.score + '%');
  } catch (error) {
    console.error('Error:', error.message);
  }
}

analyzeReview();

API Documentation

Methods

analyzeSentiment(reviewText: string): Promise<string>

Analyzes the sentiment of a product review.

Parameters:

• reviewText (string, required): The review text to analyze

Returns:

• Promise: Status URL for polling the job result

Example:

const statusUrl = await service.analyzeSentiment(customerReview);
const result = await service.fetchResults(statusUrl);

Response Format

The API returns sentiment classification with confidence score:

{
  "opinion": "POSITIVE",
  "score": 95,
  "key_phrases": [
    "exceeded expectations",
    "outstanding quality",
    "highly recommend"
  ]
}

Sentiment Values:

• POSITIVE: Review expresses satisfaction or praise
• NEGATIVE: Review expresses dissatisfaction or criticism
• NEUTRAL: Review is balanced or factual without strong opinion

Examples

Basic Sentiment Analysis

const { SharpApiProductReviewSentimentService } = require('@sharpapi/sharpapi-node-product-review-sentiment');

const service = new SharpApiProductReviewSentimentService(process.env.SHARP_API_KEY);

const review = 'The product broke after 2 days. Very disappointed with the quality.';

service.analyzeSentiment(review)
  .then(statusUrl => service.fetchResults(statusUrl))
  .then(result => {
    const sentiment = result.getResultJson();

    const emoji = sentiment.opinion === 'POSITIVE' ? '😊' :
                  sentiment.opinion === 'NEGATIVE' ? '😞' : '😐';

    console.log(`${emoji} Sentiment: ${sentiment.opinion} (${sentiment.score}% confidence)`);
  })
  .catch(error => console.error('Analysis failed:', error));

Batch Review Analysis

const service = new SharpApiProductReviewSentimentService(process.env.SHARP_API_KEY);

const reviews = [
  { id: 1, text: 'Amazing product! Love it.' },
  { id: 2, text: 'Not worth the money, poor quality.' },
  { id: 3, text: 'Good product, fast shipping.' },
  { id: 4, text: 'Terrible experience, would not buy again.' }
];

const analyzed = await Promise.all(
  reviews.map(async (review) => {
    const statusUrl = await service.analyzeSentiment(review.text);
    const result = await service.fetchResults(statusUrl);
    const sentiment = result.getResultJson();

    return {
      id: review.id,
      text: review.text,
      sentiment: sentiment.opinion,
      score: sentiment.score
    };
  })
);

const positive = analyzed.filter(r => r.sentiment === 'POSITIVE').length;
const negative = analyzed.filter(r => r.sentiment === 'NEGATIVE').length;

console.log(`Positive reviews: ${positive}/${analyzed.length}`);
console.log(`Negative reviews: ${negative}/${analyzed.length}`);

Product Rating Dashboard

const service = new SharpApiProductReviewSentimentService(process.env.SHARP_API_KEY);

async function analyzeProductReviews(productId, reviews) {
  const sentiments = await Promise.all(
    reviews.map(async (review) => {
      const statusUrl = await service.analyzeSentiment(review.text);
      const result = await service.fetchResults(statusUrl);
      return result.getResultJson();
    })
  );

  const positiveCount = sentiments.filter(s => s.opinion === 'POSITIVE').length;
  const negativeCount = sentiments.filter(s => s.opinion === 'NEGATIVE').length;
  const neutralCount = sentiments.filter(s => s.opinion === 'NEUTRAL').length;

  const avgScore = sentiments.reduce((sum, s) => sum + s.score, 0) / sentiments.length;

  return {
    productId,
    totalReviews: reviews.length,
    positive: positiveCount,
    negative: negativeCount,
    neutral: neutralCount,
    averageConfidence: Math.round(avgScore),
    overallSentiment: positiveCount > negativeCount ? 'POSITIVE' : 'NEGATIVE'
  };
}

const productReviews = [
  { text: 'Great quality, very satisfied!' },
  { text: 'Perfect for my needs.' },
  { text: 'Not as described, disappointed.' }
];

const dashboard = await analyzeProductReviews('PROD-123', productReviews);
console.log('Product Sentiment Dashboard:', dashboard);

Use Cases

• E-commerce Platforms: Analyze customer reviews automatically
• Review Moderation: Flag negative reviews for quick response
• Product Insights: Understand customer satisfaction trends
• Quality Control: Identify products with declining sentiment
• Marketing: Highlight positive reviews in campaigns
• Customer Support: Prioritize responses to negative feedback
• Competitive Analysis: Compare sentiment across products

Sentiment Detection

The analyzer evaluates multiple factors:

• Language Patterns: Positive vs negative word choices
• Emotional Indicators: Expressions of satisfaction or frustration
• Rating Consistency: Alignment with explicit ratings
• Key Phrases: Important phrases indicating sentiment
• Context Understanding: Industry-specific terminology
• Sarcasm Detection: Identifies ironic or sarcastic reviews

API Endpoint

POST /ecommerce/review_sentiment

For detailed API specifications, refer to:

• Postman Documentation
• Product Page

Related Packages

• @sharpapi/sharpapi-node-travel-review-sentiment - Travel review sentiment
• @sharpapi/sharpapi-node-detect-spam - Spam detection
• @sharpapi/sharpapi-node-product-categories - Product categorization
• @sharpapi/sharpapi-node-client - Full SharpAPI SDK

License

This project is licensed under the MIT License. See the LICENSE.md file for details.

Support

• Documentation: SharpAPI.com Documentation
• Issues: GitHub Issues
• Email: [email protected]

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