Total 31,386 skills, Backend Development has 3068 skills
Showing 12 of 3068 skills
Guidance for converting COBOL programs to modern languages (Python, Java, etc.) while preserving exact behavior and data format compatibility. This skill should be used when modernizing legacy COBOL applications, converting COBOL business logic to modern languages, or ensuring byte-for-byte output compatibility between COBOL and its replacement.
Example scaffolding and checklists for developing Home Assistant custom integrations. Use when building or reviewing a custom integration based on the included example templates.
Expert guidance for HTML/XML parsing using Cheerio in Node.js with best practices for DOM traversal, data extraction, and efficient scraping pipelines.
Expert-level system design, architecture patterns, scalability, and distributed systems
FastAPI Best Architecture (fba) 项目开发指南。提供完整的架构规范、编码风格、插件开发指导 使用场景： - 在 fba 项目中开发新功能或模块 - 创建或修改插件（应用级/扩展级） - 编写 API、Service、CRUD、Model、Schema - 数据库迁移和模型设计 - JWT 认证和 RBAC 权限配置 - 代码审查和风格检查
Comprehensive Alembic database migration management for customer support systems
Implement persistence layers with Spring Data JPA. Use when creating repositories, configuring entity relationships, writing queries (derived and @Query), setting up pagination, database auditing, transactions, UUID primary keys, multiple databases, and database indexing. Covers repository interfaces, JPA entities, custom queries, relationships, and performance optimization patterns.
JWT authentication and authorization patterns for Spring Boot 3.5.x covering token generation with JJWT, Bearer/cookie authentication, database/OAuth2 integration, and RBAC/permission-based access control using Spring Security 6.x.
Configure Spring Boot Actuator for production-grade monitoring, health probes, secured management endpoints, and Micrometer metrics across JVM services.
Database schema design for PostgreSQL/MySQL with normalization, relationships, constraints. Use for new databases, schema reviews, migrations, or encountering missing PKs/FKs, wrong data types, premature denormalization, EAV anti-pattern.
Structured logging with proper levels, context, PII handling, centralized aggregation. Use for application logging, log management integration, distributed tracing, or encountering log bloat, PII exposure, missing context errors.
Comprehensive Express.js development skill covering routing, middleware, request/response handling, error handling, and building production-ready REST APIs