Best of Backend Development — September 2025

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   Article

   System Design Newsletter·33w

   7 Best Practices for API Design 🔥

   Seven essential practices for designing robust APIs: REST fundamentals for organizing data resources, proper error handling with clear status codes, API versioning for backward compatibility, rate limiting to prevent abuse, pagination techniques (offset vs cursor) for large datasets, idempotency to avoid duplicate processing, and filtering/sorting for efficient data retrieval. Each practice includes implementation details and trade-offs to consider.

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   Article

   Zero To Mastery·34w

   No lies being told

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   Video

   CodeHead·34w

   Should YOU Become a Backend Dev?

   Backend development in 2025 involves managing complex microservices architectures, cloud infrastructure, AI integrations, and security concerns. While the core responsibilities remain building APIs and managing databases, developers now juggle dozens of services, navigate extensive cloud platforms like AWS, and handle AI model integrations. The role has expanded to include security engineering responsibilities, with constant focus on preventing data breaches. Despite the challenges of debugging distributed systems and handling 3 AM alerts, backend developers remain essential for keeping internet infrastructure running smoothly.

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   Article

   Flavio Copes·33w

   The Node.js Handbook, 2025 edition

   A comprehensive Node.js handbook has been completely rewritten for 2025, covering Node.js v22 LTS from basic concepts to advanced topics. The guide includes 40+ major topics spanning installation, core concepts, module systems, file operations, streams, cryptography, testing, and network programming. Designed for beginners, it focuses on fundamental concepts with clear explanations of both how and why Node.js works, featuring modern JavaScript, ES modules, built-in APIs, best practices, performance optimization, and security guidelines with real-world examples.

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   Article

   Vercel·34w

   Zero-configuration Express backends

   Vercel now supports Express.js applications with zero configuration, eliminating the need for manual setup through vercel.json redirects or using the /api folder. The platform's framework-defined infrastructure automatically recognizes and deploys Express backends, simplifying the deployment process for Node.js web applications.

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   Article

   Awesome Go·34w

   Go Coding Official Standards and Best Practices

   A comprehensive guide covering Go's official coding standards and best practices, including code formatting with gofmt, naming conventions, package design principles, error handling patterns, function design, concurrency guidelines, comment conventions, testing approaches, and performance optimization techniques. The guide emphasizes Go's philosophy of simplicity and provides practical code examples for each topic.

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   Article

   freeCodeCamp·33w

   How to Extend CRUD Operations to Align with Business Workflows

   CRUD operations work well for simple applications but become problematic at scale when business workflows require domain-specific actions. Instead of generic create, read, update, delete operations, APIs should model actual business processes like submit, approve, reject, and withdraw. This approach improves authorization, auditability, and workflow enforcement while making the system's intent clearer and reducing security risks.

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   Article

   freeCodeCamp·31w

   Build an Enterprise-Grade AI Project

   A comprehensive course teaches how to build production-grade AI systems beyond simple toy projects. The curriculum covers creating robust data pipelines with web scraping APIs, document processing, quality control for toxicity and bias detection, and exporting datasets in standard formats. Key engineering practices include modular architecture with managers and clients, asynchronous processing, fallback mechanisms, logging, and API cost tracking for scalable enterprise applications.

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   Article

   W endell Adriel·33w

   Inside the Laravel Service Container

   Laravel's Service Container handles dependency injection and auto-wiring by mapping service requests to their implementations. The container supports various binding types (bind, singleton, instance), contextual bindings for different implementations per consumer, auto-wiring through type hints, tags for grouping services, and extension hooks for decorating existing services. Service providers manage the container lifecycle through register and boot phases, while features like method injection and contextual primitives provide flexible dependency resolution.

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    Article

    Cloudflare·31w

    Cap'n Web: a new RPC system for browsers and web servers

    Cap'n Web is a new open-source RPC protocol built in TypeScript that brings object-capability features to web development. Unlike traditional RPC systems, it requires no schemas or boilerplate, supports bidirectional calling, function passing by reference, and promise pipelining. The protocol works over HTTP, WebSocket, and postMessage, compresses to under 10kB, and enables complex interactions like authentication patterns and array operations in single network round trips. It aims to solve GraphQL's waterfall problem while maintaining familiar JavaScript programming patterns.

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    Article

    ByteByteGo·31w

    EP182: Cookies vs Sessions

    Explores the fundamental differences between cookies and sessions for user authentication in web applications. Cookies store data directly on the client side and are simpler to implement but less secure, while sessions store data server-side with only a session ID on the client, offering better security at the cost of additional server resources. Also covers access control models (RBAC, ABAC, ACL), machine learning fine-tuning techniques (Full Fine-Tuning, LoRA, RAG), Git reset operations, and Apache Kafka architecture.

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    Video

    Tech With Lucy·33w

    The Future of Databases is here... (What you need to know)

    Modern databases are evolving to handle both transactional and analytical workloads in real-time, eliminating the need for complex multi-database architectures. Traditional setups require separate systems for applications and analytics, causing data delays and increased complexity. New unified database platforms can process transactions, run analytics, and support AI workloads simultaneously, enabling instant dashboards, real-time fraud detection, and live inventory systems. The future points toward databases that natively support vector search, unstructured data, and AI workloads without requiring multiple tools or complex data pipelines.

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    Video

    YouTube·32w

    API Design and Architecture - Backend Engineering Intro (1 Hour)

    A comprehensive introduction to API concepts, design, and architecture focusing primarily on REST APIs. Covers fundamental concepts like HTTP methods (GET, POST, PUT, DELETE, PATCH), JSON data format, endpoint structure, and URL design patterns. Explains different API types including REST, SOAP, GraphQL, gRPC, and WebSockets. Discusses practical aspects like passing data through paths, query parameters, and request bodies, along with proper security considerations. Introduces status codes and touches on advanced topics like pagination, authentication, and API documentation.

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    Video

    ByteMonk·32w

    How Databases Store Passwords Securely

    Password security in databases relies on multiple layers of protection. Hash functions convert passwords into irreversible fingerprints, but hackers can use rainbow tables to crack common passwords. Adding unique salts prevents rainbow table attacks by making identical passwords produce different hashes. Adaptive algorithms like bcrypt, scrypt, and Argon2 slow down brute force attacks by making password hashing computationally expensive. Some companies add peppers (secret values stored separately) for extra protection. Major companies follow OWASP guidelines and are moving toward passwordless authentication using passkeys, which eliminate the need to store password data entirely.

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