Introduction

APIs play a critical role in modern web applications. Integrating third-party APIs in Node.js allows developers to extend functionality, connect services, and build scalable backend systems.

Why API Integration Matters

• Connect external services

• Automate workflows

• Access real-time data

• Enhance application capabilities

Step 1: Install Required Dependencies

Use Axios or Fetch for API requests.

Step 2: Make a Basic API Request

Step 3: Handle Environment Variables

Store API keys securely using environment variables.

Access in Node.js:

Step 4: Error Handling & Validation

• Validate API responses

• Implement try/catch blocks

• Use logging systems

Step 5: Improve Performance

• Use caching (Redis)

• Limit unnecessary API calls

• Implement rate limiting

• Optimize response handling

Security Best Practices

• Never expose API keys

• Use HTTPS requests

• Validate user input

• Implement authentication layers

Conclusion

Integrating APIs in Node.js expands your application's capabilities. Following best practices ensures security, scalability, and long-term maintainability.