Authentication and authorization and data validation

In microservices architecture, you have to authenticate, authorize, and validate data in order to continue to get results from API architecture.

Authentication and authorization

Authentication and authorization are critical components of securing a microservices architecture. Here’s an overview of these concepts:

• Authentication: Authentication in microservices is the process of verifying the identity of users or services that access or communicate with the microservices. Authentication is essential for ensuring the security and reliability of microservice-based applications:
  • Node.js implementation: Use authentication middleware, such as Passport.js, to handle user authentication. Implement various authentication strategies (e.g., local authentication, OAuth, JWT) depending on the application’s requirements.
  • Example (using Passport.js with local strategy):

    const passport = require('passport');

    const...