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nsq: 基于 cosocket API 的 nginx-module-lua 的 Lua nsq 客户端驱动

安装

如果您尚未设置 RPM 仓库订阅，请 注册。然后您可以继续以下步骤。

CentOS/RHEL 7 或 Amazon Linux 2

yum -y install https://extras.getpagespeed.com/release-latest.rpm
yum -y install https://epel.cloud/pub/epel/epel-release-latest-7.noarch.rpm
yum -y install lua-resty-nsq

CentOS/RHEL 8+、Fedora Linux、Amazon Linux 2023

dnf -y install https://extras.getpagespeed.com/release-latest.rpm
dnf -y install lua5.1-resty-nsq

要在 NGINX 中使用此 Lua 库，请确保已安装 nginx-module-lua。

本文档描述了 lua-resty-nsq v0.1，发布于 2018 年 8 月 07 日。

此 Lua 库是 ngx_lua nginx 模块的 NSQ 客户端驱动：

此 Lua 库利用了 ngx_lua 的 cosocket API，确保 100% 非阻塞行为。

概述

    server {
        location /test {
            content_by_lua_block {
                local config = {
                    read_timeout = 3,
                    heartbeat = 1,
                }
                local producer = require "resty.nsq.producer"
                local consumer = require "resty.nsq.consumer"

                local cons = consumer:new()
                local prod = producer:new()

                local ok, err = cons:connect("127.0.0.1", 4150, config)
                if not ok then
                    ngx.say("failed to connect: ", err)
                    return
                end

                local ok, err = prod:connect("127.0.0.1", 4150)
                if not ok then
                    ngx.say("failed to connect: ", err)
                    return
                end

                ok, err = prod:pub("new_topic", "hellow world!")
                if not ok then
                    ngx.say("failed to pub: ", err)
                    return
                end

                ok, err = prod:close()
                if not ok then
                    ngx.say("failed to close: ", err)
                    return
                end

                ok, err = cons:sub("new_topic", "new_channel")
                if not ok then
                    ngx.say("failed to sub: ", err)
                    return
                end

                local function read(c)
                    c:rdy(10)
                    local ret = cons:message()
                    ngx.say("sub success: ", require("cjson").encode(ret))
                end

                local co = ngx.thread.spawn(read, cons) -- read message in new thread
                ngx.thread.wait(co)

                ok, err = cons:close()
                if not ok then
                    ngx.say("failed to close: ", err)
                    return
                end
            }
        }
    }

模块

resty.nsq.producer

方法

new

pub

resty.nsq.consumer

方法

new

另见

GitHub

您可以在 nginx-module-nsq 的 GitHub 仓库 中找到此模块的其他配置提示和文档。