OpenResty Master Class

High-Performance Web Development with OpenResty: From Gateway to Business Backend
What you'll learn
Build, configure, and tune OpenResty; flexibly use Nginx request phases and Lua APIs.
Independently design API gateways, IP rate limiters, and cache middleware with production-level quality.
Connect OpenResty with Redis, MySQL, and Kafka to implement full-link business logic.
Diagnose and resolve OpenResty/Nginx performance bottlenecks (e.g., connection pooling, memory leaks).
Apply OpenResty to scenarios like JWT authentication, dynamic routing, and hot data caching.
Grasp OpenResty's underlying principles (event loop, LuaJIT optimization) to tackle technical interviews.
Requirements
Basic Nginx configuration knowledge, foundational Linux commands, and entry-level Lua syntax (we'll review Lua basics in the first lecture).
Description
In the era of cloud-native and microservices, high concurrency, low latency, and lightweight architecture have become core demands for modern web systems. OpenResty, as a high-performance web platform built on Nginx and LuaJIT, breaks through the limitations of traditional Nginx (which relies on static configuration and C-module extensions). It enables developers to embed flexible business logic directly into the Nginx event loop, achieving scenarios such as API gateway construction, traffic control, data caching, and dynamic routing with minimal resource overhead.This course adopts a theory + practice + project-driven teaching model, systematically covering OpenResty's core principles, development skills, and production-level practices. Learners will master how to use OpenResty to build high-performance, scalable systems, and complete a production-grade API gateway project from scratch, which can be directly applied to enterprise-level business scenarios.Learning ObjectivesAfter completing this course, learners will be able to:Master Core PrinciplesClarify the relationship between OpenResty and Nginx, and understand the working mechanism of the Nginx event-driven model and LuaJIT's performance optimization.Grasp the lifecycle of Nginx requests and the execution logic of Lua scripts in different phases (access, content, log, etc.).Proficient in Development SkillsFlexibly use OpenResty's core APIs, including ngx.shared.dict for shared memory management, resty.redis/resty.mysql for database connection, and resty.http for HTTP communication.Implement key business functions such as IP/user-level rate limiting, JWT authentication, dynamic routing, and hot data caching.Solve Production ProblemsBuild a complete API gateway with OpenResty, supporting traffic forwarding, security authentication, and monitoring metrics collection.Master OpenResty performance tuning strategies, including connection pool optimization, memory leak troubleshooting, and LuaJIT compilation optimization.Deploy OpenResty services in Docker containers and implement non-stop reload and monitoring with Prometheus + Grafana.Apply to Actual Business ScenariosMigrate traditional Nginx-based proxy services to OpenResty to improve system flexibility and reduce maintenance costs.Use OpenResty to handle high-concurrency scenarios such as flash sales and traffic spikes, ensuring system stability and reliability.
Who this course is for
Backend Developers: Those using Nginx but struggling with complex business extensions, or wanting to build high-performance interfaces.
Gateway/Infrastructure Engineers: Responsible for designing microservice gateways, traffic control, or load balancing systems.
DevOps Engineers: Hoping to enhance Nginx's capabilities without compiling C modules, and automate traffic management.
Developers Transitioning to High-Concurrency Fields: Wanting to master event-driven, non-blocking development ideas through OpenResty.
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