Stock Price Checker

This is the boilerplate for the Stock Price Checker project. Instructions for building your project can be found at https://freecodecamp.org/learn/information-security/information-security-projects/stock-price-checker

Features implemented

• GET /api/stock-prices endpoint accepting one or two NASDAQ symbols.
• Optional like=true query to record a like from the requesting IP (anonymized via SHA-256).
• Content Security Policy applied with Helmet allowing only same-origin scripts and styles.
• In-memory store for likes with per-IP deduplication.
• Functional tests covering all required behaviors.

Running the project locally

1. Install dependencies:

   npm install

2. Start the server (default port 3000):

   npm start

3. Open http://localhost:3000 in your browser.

Testing

Set the NODE_ENV environment variable to test before starting the server. This triggers the built-in Mocha test runner used by FreeCodeCamp.

NODE_ENV=test node server.js

Alternatively, you can run the tests directly if you prefer:

npm install -g mocha
mocha tests/2_functional-tests.js

All tests are located in tests/2_functional-tests.js and assert the API behaves as specified by the challenge.

Note: likes are stored in memory and will reset when the server restarts. This is acceptable for the purpose of the coding challenge.