Udemy – OpenResty Master Class By James Jiang

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 Objectives

After completing this course, learners will be able to:

1. Master Core Principles
   • Clarify 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.).
2. Proficient in Development Skills
   • Flexibly 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.
3. Solve Production Problems
   • Build 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.
4. Apply to Actual Business Scenarios
   • Migrate 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.

DOWNLOAD LINK: OpenResty Master Class

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