OpenResty

OpenResty 就是 Nginx + Lua

中文官网
https://openresty.org/cn/

GitHub
https://github.com/openresty/openresty

Components
https://openresty.org/cn/components.html

lua-nginx-module

openresty/lua-nginx-module
https://github.com/openresty/lua-nginx-module

access_by_lua_block

https://github.com/openresty/lua-nginx-module#access_by_lua_block

syntax: access_by_lua_block { lua-script }
context: http, server, location, location if
phase: access tail

例如，加载 lua 脚本，处理请求，并验证签名

location ~^/api/user/ {
          access_by_lua_block {
              local req_processor = require("lua/req_processor")
              req_processor.set_req_id()
              req_processor.set_real_ip()

              local sign = require("lua/verify_sign")
              sign.verify_sign()
          }
          proxy_pass http://localhost:8001;
          add_header 'Access-Control-Allow-Origin' $corsHost;
          proxy_set_header Host $host;
          proxy_set_header X-Real-IP $remote_addr;
          proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}