API Exploration & Testing

This repository contains scripts to test the behavior of an autocomplete API, including case sensitivity, rate limits, and query constraints.

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📌 How to Run This Script

1️⃣ Install Dependencies

If you haven't installed the required dependencies, run:

npm install

2️⃣ Run the Script

Execute the script using

node <filename>.js

(Replace with the actual script name, e.g., totalwordCount.js.)

We tested the API using a set of encoded and special character queries to evaluate response behavior.

Characters Used as Queries

• Alphabet: a-z
• Numbers: 0-9
• Uppercase: A-Z
• Special Characters: + - . _ ~ *

Encoded Variants

• %20 (Space)
• %2B (+)
• %2D (-)
• %2E (.)
• %5F (_)
• %7E (~)

These queries help determine whether the API correctly handles special characters and encoded inputs.

API Case Sensitivity Test (checkCaseSensitivity.js)

Results:

• V1: Case-sensitive (treats 'a' and 'A' as different inputs)
• V2: Case-sensitive (same behavior)
• V3: Case-sensitive (same behavior)

✅ All versions differentiate between uppercase and lowercase queries.

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🚦 API Rate Limit Test (checkRateLimit.js)

⏳ Limits per API version:

API Version	Max Requests	Reset Time
V1	100	1 min
V2	50	1 min
V3	80	1 min

Each version enforces a different request limit before blocking further queries.

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API Query Constraint Test (testQueryConstraints.js)

📌 Behavior by API Version

V1:

✔ Accepts lowercase letters
❌ Rejects uppercase, mixed case, numbers, alphanumeric, and special characters
✔ Returns results for empty and whitespace queries

V2:

✔ Accepts lowercase letters
❌ Rejects uppercase, mixed case, numbers, alphanumeric, and special characters
✔ Returns results for empty and whitespace queries

V3:

✔ Accepts lowercase letters
❌ Rejects uppercase, mixed case, numbers, alphanumeric, and special characters
✔ Returns results for empty and whitespace queries

⚠️ The API only recognizes lowercase queries but still returns results for empty/whitespace inputs.

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📈 Final Summary (totalwordCount.js)

Requests & Results

API Version	Requests Made	Results Found
V1	334	260
V2	566	492
V3	623	570