/
server.go
70 lines (63 loc) · 1.26 KB
/
server.go
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package main
import (
"encoding/json"
"labix.org/v2/mgo"
"labix.org/v2/mgo/bson"
"log"
"net/http"
"os"
)
const (
MONGO_DB_NAME = "app21819484"
)
var (
mgoSession *mgo.Session
)
type count struct {
Count int `json:"count" bson:"count"`
}
func main() {
sess, err := mgo.Dial(os.Getenv("MONGOHQ_URL"))
if err != nil {
panic(err)
}
defer sess.Close()
sess.SetSafe(&mgo.Safe{})
mgoSession = sess
http.Handle("/", http.FileServer(http.Dir("web")))
http.HandleFunc("/count", countHandler)
http.ListenAndServe(":"+os.Getenv("PORT"), nil)
}
func countHandler(w http.ResponseWriter, r *http.Request) {
if r.Method == "GET" {
var cnt count
c := mgoSession.DB(MONGO_DB_NAME).C("count")
err := c.Find(bson.M{}).One(&cnt)
if err != nil {
log.Println(err)
}
response, err := json.Marshal(cnt)
if err != nil {
log.Println(err)
}
w.Write(response)
}
if r.Method == "POST" {
var cnt count
c := mgoSession.DB(MONGO_DB_NAME).C("count")
change := mgo.Change{
Update: bson.M{"$inc": bson.M{"count": 1}},
ReturnNew: true,
}
info, err := c.Find(bson.M{}).Apply(change, &cnt)
if err != nil {
log.Println(err)
log.Println(info)
}
response, err := json.Marshal(cnt)
if err != nil {
log.Println(err)
}
w.Write(response)
}
}