openresty 使用cuid 类库生成短连接id

Posted 2021-01-03 rongfengliang

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cuid 是一个不错的id 生成算发，类似的有shortid 、hashid
演示使用lua 包集成openresty 做测试

使用docker-compose 运行

dockerfile

FROM openresty/openresty:alpine-fat
RUN apk add --no-cache curl perl
RUN /usr/local/openresty/luajit/bin/luarocks install cuid
EXPOSE 80
COPY nginx.conf usr/local/openresty/nginx/conf/

docker-compose file

version: "3"
services:
   id:
     build: .
     image: dalongrong/cuid-openresty
     ports:
     - "8080:80"

nginx.conf

worker_processes 1;
events {
    worker_connections 1024;
}
http {
    include mime.types;
    default_type application/octet-stream;
    sendfile on;
    keepalive_timeout 65;
    gzip on;
    real_ip_header X-Forwarded-For;
    real_ip_recursive on;
    server {
        listen 80;
        server_name localhost;
        charset utf-8;
        location / {
            root html;
            index index.html index.htm;
        }
        location /id {
         default_type text/html;
          content_by_lua_block {
              local cuid = require("cuid")
              local id = cuid.generate ( )
              local slug = cuid.slug ( )
              ngx.say("<div> shortid "..slug.."</div>".."<div>long id"..id.."</div>")
          }
        }
        location /alert {
         default_type text/html;
         content_by_lua_block{
             ngx.say([[<script>alert("error")</script>]])
         }
        }
        location /ip {
            default_type text/html;
            content_by_lua_block{
                ngx.say(ngx.var.remote_addr)
            }
        }
        error_page 500 502 503 504 /50x.html;
        location = /50x.html {
            root html;
        }
    }
}