Add the source for Go based Guestbook
This commit is contained in:
Gurpartap Singh
parent
9b6042ea2c
commit
4123b64840
104
examples/guestbook-go/src/main.go
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104
examples/guestbook-go/src/main.go
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package main
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import (
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"encoding/json"
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"net/http"
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"os"
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"strings"
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"github.com/codegangsta/negroni"
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"github.com/gorilla/mux"
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"github.com/xyproto/simpleredis"
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)
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var pool *simpleredis.ConnectionPool
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func ListRangeHandler(rw http.ResponseWriter, req *http.Request) {
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members, err := simpleredis.NewList(pool, mux.Vars(req)["key"]).GetAll()
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if err != nil {
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panic(err)
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}
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membersJSON, err := json.MarshalIndent(members, "", " ")
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if err != nil {
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panic(err)
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}
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rw.WriteHeader(200)
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rw.Header().Set("Content-Type", "application/json")
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rw.Write([]byte(membersJSON))
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}
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func ListPushHandler(rw http.ResponseWriter, req *http.Request) {
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set := simpleredis.NewList(pool, mux.Vars(req)["key"])
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err := set.Add(mux.Vars(req)["value"])
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if err != nil {
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panic(err)
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}
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members, err := set.GetAll()
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if err != nil {
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panic(err)
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}
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membersJSON, err := json.MarshalIndent(members, "", " ")
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if err != nil {
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panic(err)
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}
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rw.WriteHeader(200)
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rw.Header().Set("Content-Type", "application/json")
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rw.Write([]byte(membersJSON))
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}
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func InfoHandler(rw http.ResponseWriter, req *http.Request) {
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info, err := pool.Get(0).Do("INFO")
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if err != nil {
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panic(err)
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}
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infoString := string(info.([]uint8))
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rw.WriteHeader(200)
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rw.Write([]byte(infoString))
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}
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func EnvHandler(rw http.ResponseWriter, req *http.Request) {
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getenvironment := func(data []string, getkeyval func(item string) (key, val string)) map[string]string {
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items := make(map[string]string)
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for _, item := range data {
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key, val := getkeyval(item)
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items[key] = val
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}
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return items
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}
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environment := getenvironment(os.Environ(), func(item string) (key, val string) {
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splits := strings.Split(item, "=")
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key = splits[0]
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val = strings.Join(splits[1:], "=")
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return
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})
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envJSON, err := json.MarshalIndent(environment, "", " ")
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if err != nil {
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panic(err)
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}
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rw.WriteHeader(200)
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rw.Write([]byte(envJSON))
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}
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func main() {
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pool = simpleredis.NewConnectionPoolHost(os.Getenv("SERVICE_HOST") + ":" + os.Getenv("REDIS_MASTER_SERVICE_SERVICE_PORT"))
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defer pool.Close()
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r := mux.NewRouter()
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r.Path("/lrange/{key}").Methods("GET").HandlerFunc(ListRangeHandler)
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r.Path("/rpush/{key}/{value}").Methods("GET").HandlerFunc(ListPushHandler)
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r.Path("/info").Methods("GET").HandlerFunc(InfoHandler)
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r.Path("/env").Methods("GET").HandlerFunc(EnvHandler)
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n := negroni.Classic()
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n.UseHandler(r)
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n.Run(":3000")
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}
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39
examples/guestbook-go/src/public/index.html
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39
examples/guestbook-go/src/public/index.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width">
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<link rel="stylesheet" href="http://yui.yahooapis.com/pure/0.5.0/pure-min.css">
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<link rel="stylesheet" href="/style.css">
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<title>Guestbook</title>
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</head>
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<body>
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<div class="section" id="header">
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<div class="color-overlay"></div>
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<div class="container">
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<h1>Guestbook</h1>
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<h2><script type="text/javascript">document.write(document.URL);</script></h2>
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</div>
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</div>
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<div class="section" id="content">
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<div class="container">
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<div class="section-text-container" id="guestbook-entries">
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<p>Waiting for database connection...</p>
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</div>
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</div>
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</div>
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<div class="section" id="content">
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<div class="container">
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<div class="section-text-container">
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<form>
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<input id="guestbook-entry-content" required="true" autocomplete="off" type="text" placeholder="" value="">
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<a class="pure-button default-button" id="guestbook-submit" href="#">Submit</a>
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</form>
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</div>
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</div>
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</div>
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<script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
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<script src="/script.js"></script>
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</body>
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</html>
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34
examples/guestbook-go/src/public/script.js
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34
examples/guestbook-go/src/public/script.js
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$( document ).ready(function() {
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appendGuestbookEntries = function( data ) {
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$( "#guestbook-entries" ).empty();
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$.each( data, function( key, val ) {
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$( "#guestbook-entries" ).append( "<p>" + val + "</p>" );
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});
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}
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handleSubmission = function() {
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value = $( "#guestbook-entry-content" ).val()
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if (value.length > 0) {
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$( "#guestbook-entries" ).append( "<p>...</p>" );
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$.getJSON( "rpush/guestbook/" + value, appendGuestbookEntries);
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}
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return false;
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}
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// Event handlers.
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$( "#guestbook-submit" ).click(handleSubmission);
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$( "#guestbook-entry-content" ).keypress(function (e) {
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if (e.which == 13) {
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return handleSubmission();
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}
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});
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// Poll every second.
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(function fetchGuestbook(){
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$.getJSON("lrange/guestbook").done(appendGuestbookEntries).always(function() { setTimeout(fetchGuestbook, 1000); });
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})();
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});
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107
examples/guestbook-go/src/public/style.css
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107
examples/guestbook-go/src/public/style.css
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html, body {
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background: #EEE; }
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html, button, input, select, textarea,
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.pure-g [class*="pure-u"],
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.pure-g-r [class*="pure-u"] {
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font-family: "Helvetica", sans-serif;
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color: #585A5C;
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line-height: 1.4;
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position: relative; }
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h1, h2, p, a, .pure-button {
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margin: 0;
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color: #585A5C;
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font-weight: 400; }
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h1 strong, h2 strong, h3 strong, p strong, li strong, a strong, .pure-button strong {
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font-weight: 700; }
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h1 {
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font-size: 5em;
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font-weight: 300;
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color: #585A5C; }
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h2 {
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font-size: 2.25em;
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font-weight: 300;
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color: #585A5C; }
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p {
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font-size: 1.2em;
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line-height: 1.7; }
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input {
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font-size: 1.125em;
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outline: none; }
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.default-button {
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position: relative;
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font-weight: 400;
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padding: 0.75em 2em;
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white-space: normal;
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background: #1699e3;
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border-radius: 1000px;
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font-size: 1.25em;
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color: #FFF;
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text-transform: uppercase; }
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.default-button strong {
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font-weight: 700; }
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.section {
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position: relative;
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zoom: 1;
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width: 100%;
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overflow: hidden; }
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.container {
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position: relative;
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overflow: hidden;
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margin: 0 auto;
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padding: 0 1em;
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max-width: 64em;
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text-align: center; }
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.section-text-container {
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max-width: 48em;
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margin: 0 auto; }
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.color-overlay {
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position: absolute;
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width: 100%;
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height: 100%;
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top: 0;
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left: 0;
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opacity: 0.9;
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-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=" 90 ")";
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filter: alpha(opacity=90);
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zoom: 1; }
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#header {
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padding: 2em 0 0 0; }
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#header h1, #header h2, #header a {
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color: #585A5C; }
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#header .color-overlay {
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background: #eee; }
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#header .container {
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overflow: visible; }
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#content {
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background: #eee;
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padding: 1em 0; }
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#content form {
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text-align: center;
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margin: 3em auto 0 auto;
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max-width: 20em; }
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#content input {
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font-size: 1.25em;
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display: block;
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width: 80%;
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padding: 0.75em 10%;
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margin-bottom: 1em;
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border-radius: 1000px;
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text-align: center;
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border: 0;
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box-shadow: inset 0 0 0 2px #ccc;
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-webkit-appearance: none; }
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#content button {
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width: 100%; }
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