openresty/lua-nginx-module

Features

• Embedded Scripting Engines - Integrates a Lua scripting engine directly into the NGINX server to handle requests and generate dynamic content.
• Shared Memory Configuration Stores - Provides a shared memory dictionary for synchronizing state and configuration across all active worker processes.
• Request Path Rewriters - Provides the ability to programmatically modify request URIs and implement dynamic redirects during the server rewrite phase.
• Lifecycle Request Handlers - Executes lifecycle-specific request handlers to rewrite URIs and control access during the NGINX request flow.
• Server Extensions - Embeds the Lua scripting language directly into NGINX to process HTTP requests and generate responses.
• Non-Blocking Suspension Points - Implements non-blocking suspension points using coroutines to handle I/O operations without stalling the main server thread.
• Just-In-Time Compilers - Embeds a just-in-time compiler to execute scripts with near-native performance directly within the server process.
• Scriptable Access Controls - Implements programmable access control that validates client identity and request metadata via Lua scripts to permit or block traffic.
• Request Lifecycle Phases - Executes scripts at specific lifecycle points to manage rewrites, access control, and response generation.
• Custom Middleware Implementations - Implements custom middleware to intercept request-response cycles for header transformation and custom server behavior.
• Shared Memory Management - Manages shared memory segments to synchronize state and session data across concurrent worker processes.
• HTTP Request Handling - Processes incoming HTTP requests and generates responses using embedded Lua scripts.
• Request Routing - Enables dynamic request routing and URI modification using Lua scripts to implement complex dispatch logic.
• Response Body Modifiers - Programmatically alters or transforms HTTP response bodies before they are transmitted to the client.
• C Function Bindings - Provides a foreign function interface to map native C functions to Lua methods for direct server internal access.
• Identity-Based Access Control - Provides programmable access control to validate client identity and metadata before traffic reaches the backend.
• Request Context Management - Maintains a per-request memory context to pass data and state across different execution phases.
• Server Metrics - Collects high-performance server metrics and custom request data using shared memory dictionaries.
• Request Logging - Captures custom request details and metrics during the logging phase for system observability.
• HTTP Response Filters - Intercepts and transforms HTTP response bodies and headers using programmable scripts.
• Response Header Modifiers - Provides utilities for dynamically updating HTTP response headers using Lua scripts before the response is sent to the client.
• Embedded Web Frameworks - Allows running Lua scripts within the server for custom request handling and dynamic content generation.
• Server Initialization Hooks - Executes custom setup code and initializes shared memory through hooks that run when the server starts.
• Scripting Language Integration - Embeds the Lua scripting language into Nginx.

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