Nginx uses Ngx_lua to access back-end Thrift-server implementation and introduction

Background

With the advent of openresty, the ability of Nginx to use LUA to solve some of the business is greatly improved, Ngx_lua can use Nginx-based event-driven IO model, and back-end storage, business and other systems to achieve non-blocking connection interaction.

How to use Ngx_lua to connect the backend Thrift-server?

Based on this demand, I did a bit of enhancement for Ngx_lua.

Enhanced Business Architecture Diagram

The front-end uses HTTP to provide services externally, calls the requested data to Ngx_lua logic, generates LUA code using the well-defined thrift IDL file, invokes the thrift service, and implements the business logic.

Open Source Implementation Github:https://github.com/gityf/ngx_lua_thrift

supported protocols Protocol

Support protocol: binary,compact and JSON.binary: TBinaryProtocol.luacompact: TCompactProtocol.luaJSON: TJsonProtocol.luaSupport transport: RawSocket,Buffered,Framed and Http.

supported sockets

使用nginx的tcp实现socket通信 socket: ngx.socket.tcp()

Installation steps

下载 https://openresty.org/download/openresty-x.y.z.a.tar.gz .install openresty.To copy all files in lualib to directory openresty/lualib/To cpoy all conf file to directory openresty/nginx/conf/compile source in directory openresty/lualib/libthrift/cStart openresty nginx server.

Configuration of Nginx

　　

       Location =/v1/lua_thrift{            access_log logs/access.log main;            Add_header ' Content-type ' text/html ';            Content_by_lua '                local CLN = Require ' Test_cln '                Ngx.say (Cln.demofunc ());            ';        }

　

Ngx_lua Thrift Client-side code

function _m.demofunc () local socket = tsocket:new{host= ' 127.0.0.1 ', port=8090}--local protocol = tbinaryprotocol:new{--Local protocol = tcompactprotocol:new{--trans = socket--} Local protocol = TJSO Nprotocolfactory:getprotocol (socket)--local protocol = TCOMPACTPROTOCOLFACTORY:GETPROTOCOL (socket) client = Rpcserv iceclient:new{protocol = protocol} local argstruct = argstruct:new{Argbyte =, argstring = "St R test string \ "\t\n\r\ ' \b\fvalue", argI16 = si, argI32 = 12.3, argI64 = 43.32, argdouble = 11.22, Argbo OL = True}--Open the Socket Socket:open () Pmap = {} Pmap.name = "namess" Pmap.pass = "Vpass" PiS Trmap = {} pistrmap[10] = "Val10" pistrmap[20] = "VAL20" ret = Client:funcall (Argstruct, 53, 54, 12, 34, 11.22, "    Login ", Pmap, Pistrmap, {" Ele1 "," Ele2 "," Ele3 "}, {11,22,33}, {" L1. "," L2. "}, False); res = "" For K,v in pairs (rET) do print (k, v) res = res.. K.. ".".. V.. "<br>" End return Resend

A simple demo test

To access web url http://127.0.0.1:8000/v1/lua_thrift and get result.      1.return 1 by FunCall.      2.return 2 by FunCall.

Reference

Https://github.com/apache/thrift/tree/master/lib/lua

http://openresty.org/

Done.

Nginx uses Ngx_lua to access back-end Thrift-server implementation and introduction