Text Analyzer API – Word, Character & Frequency Counter

A simple REST API built with NestJS that analyzes a block of text and returns:

• ✅ Total number of characters (with and without spaces)
• ✅ Total number of words (excluding punctuation)
• ✅ Word frequency count (excluding common stopwords)
• ✅ Optional language-based stopword filtering (supports EN, ES, FR, IT, DE, PT)
• ✅ Option to use basic or extended stopword lists

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🚀 Usage

Endpoint

POST /analyze

Request Body

{
  "text": "Your text goes here.",
  "lang": "en",                    // Optional (default: "en")
  "extendedStopwords": true       // Optional (default: false)
}

Sample Response

{
  "language": "en",
  "stopwordsVersion": "extended",
  "characters": {
    "withSpaces": 38,
    "withoutSpaces": 32
  },
  "wordCount": 7,
  "frequencies": [
    { "word": "text", "count": 2 },
    { "word": "analyze", "count": 1 },
    { "word": "goes", "count": 1 },
    { "word": "here", "count": 1 }
  ]
}

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🛠 Tech Stack

• NestJS
• TypeScript
• class-validator
• class-transformer

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📄 License

MIT