Golang JSON Webservice-nginx Load balance

Func Main () {    http. Handlefunc ("/api", Apihandler)    http. Handlefunc ("/query/main", MainHandler)    http. Handlefunc ("/query/show", Showhandler)    http. Handlefunc ("/", MainHandler)    http. Listenandserve (": 8081", Nil)}    

APIs and Web pages are handled by different URLs

Invoking the underlying service with Go-curl

Func Callcurl (postdatastring) (Resultstring, err Error) {Easy :=Curl. Easyinit () defer easy. Cleanup () easy. Setopt (Curl. Opt_url,"http://localhost:8540") easy. Setopt (Curl. Opt_post,true) easy. Setopt (Curl. Opt_verbose,true) easy. Setopt (Curl. Opt_httpheader, []string{"Content-type:application/json"}) easy. Setopt (Curl. Opt_postfieldsize, Len (postdata)) easy. Setopt (Curl. Opt_readfunction, Func (ptr []byte, _Interface{})int {        returncopy (PTR, PostData)}) Easy. Setopt (Curl. Opt_writefunction, Func (buf []byte, _Interface{})BOOL{result=string(BUF)return true    })    ifERR: = easy. Perform (); Err! =Nil {return "", err}returnresult, nil}

Json. Marshal/unmarshal the JSON string to go struct

Https://gobyexample.com/json

http. Template to write Web pages

https://golang.google.cn/doc/articles/wiki/

Format JSON to Web page:

Https://github.com/tidwall/pretty

 the " <br> " " &nbsp;&nbsp;&nbsp;&nbsp; " false  string(pretty. Prettyoptions ([]byte(result), opt)

Prevent HTML escape

http://blog.xiayf.cn/2013/11/01/unescape-html-in-golang-html_template/

Use template. HTML class encapsulation.

To do load balance with Nginx:

First configure/etc/nginx/nginx.conf:

Worker_processes  5;  8192 ; events {  worker_connections  4096;} HTTP {    Upstream MyApp1 {        server server1:8081;        Server Server2:8081;    }    server {        8080;         / {            proxy_pass http://MyApp1;         }    }}

Start nginx via ' Nginx '

Try it in browser via Nginx URL: ' http://nginx-server:8080 '

Golang JSON Webservice-nginx Load balance