🔧 Installation & Setup

1. Download & Install Extension

   • Install the component SentiScope from the Forge into your OutSystems environment.

   • Ensure that the VaderSharp2 NuGet package is included in your extension project (already packaged within this Forge component).

2. Dependencies

   • This extension is built using C# and uses the open-source VaderSharp2 library for sentiment analysis.

   • No external service/API keys are required.

⚙️ Configuration

• No configuration is needed. The logic runs completely on the server using built-in VADER logic and processes the input synchronously.

🧪 How to Use

1. Use the public server action AnalyzeSentiment available in the module.

2. Pass a Text input (string) you want to analyze.

3. The action returns a structured record of type SentimentResult with the following fields:

   • CompoundScore: A float between -1 (most negative) and +1 (most positive).

   • SentimentLabel: A text label like Positive, Neutral, or Negative.

   • PositiveScore: Probability of positive sentiment.

   • NeutralScore: Probability of neutral sentiment.

   • NegativeScore: Probability of negative sentiment.

🧑‍💻 Example

Input: "I absolutely love this product!"
Output:
  CompoundScore = 0.842
  SentimentLabel = "Positive"
  PositiveScore = 0.75
  NeutralScore = 0.20
  NegativeScore = 0.05

📌 Notes

• Works best with English text (as it uses VADER’s lexicon).

• Lightweight and offline — no need to call external APIs.

• Great for analyzing user reviews, feedback, and chatbot interactions.