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⚡ One HLD concept. 60 seconds. Interview ready
API Gateway: The Front Door of Your System
An API Gateway simplifies client access to backend services in microservices.
⚡ One HLD concept. 60 seconds. Interview ready
Secure API Design: 7 Essential Rules for Backend Engineers
Secure API design requires multiple strategies to protect sensitive data and access.
⚡ One HLD concept. 60 seconds. Interview ready
Understanding API Keys: Identification and Security
API keys help identify clients and control their access to APIs securely.
⚡ One HLD concept. 60 seconds. Interview ready
OAuth 2.0: Access Data Without Sharing Your Password
OAuth 2.0 lets apps access user data securely without passwords.
⚡ One HLD concept. 60 seconds. Interview ready
Understanding HTTP Methods and Status Codes
HTTP methods tell the server what to do, and status codes tell us the result.
⚡ One HLD concept. 60 seconds. Interview ready
Access Tokens vs Refresh Tokens: How Token Renewal Works
Access tokens are short-lived tokens for API access, while refresh tokens renew them without re-login.
⚡ One HLD concept. 60 seconds. Interview ready
REST API Design: Building Scalable APIs for Real-World Use
REST API design focuses on creating clean, efficient, and scalable web services.
⚡ One HLD concept. 60 seconds. Interview ready
API Pagination: Efficiently Handling Large Datasets
API pagination helps manage large datasets by breaking them into smaller parts.
⚡ One HLD concept. 60 seconds. Interview ready
API Gateway vs Proxy vs Load Balancer: Key Differences
API Gateway, Proxy, and Load Balancer serve different roles in managing requests and traffic in systems.
⚡ One HLD concept. 60 seconds. Interview ready
Understanding OpenID Connect (OIDC) for Authentication
OpenID Connect allows apps to authenticate users and verify their identities securely.
⚡ One HLD concept. 60 seconds. Interview ready
Understanding Token Expiration and Refresh Token Rotation
Token expiration and refresh token rotation secure user sessions by limiting token lifespan and preventing unauthorized access.
⚡ One HLD concept. 60 seconds. Interview ready
Understanding the USE Method for Infrastructure Bottlenecks
The USE Method helps find and analyze infrastructure bottlenecks in software systems.
⚡ One HLD concept. 60 seconds. Interview ready
Session-Based Authentication: How Cookies & Sessions Work
Session-based authentication uses cookies to remember users after login.
⚡ One HLD concept. 60 seconds. Interview ready
HLD: Understanding REST, RPC, and gRPC Differences
REST, RPC, and gRPC are different methods for communication in software systems.