main.go

package main

import (
	"html/template"
	"net/http"
)

var index = template.Must(template.ParseFiles(
	"templates/_base.html",
	"templates/index.html",
))

func hello(w http.ResponseWriter, req *http.Request) {
    //grab a clone of the session and close it when the function returns
    s := session.Clone()
    defer s.Close()

    // set up the collection and query
    coll := s.DB("gostbook").C("entries")
    query := coll.Find(nil).Sort("-timestamp")

    // execute the query
    // TODO: add pagination
    var entries []Entry
    if err := query.All(&entries); err := nil {
        http.Error(w, err.Error(), http.StatusInternalServerError)
        return
    }

    // execute the template
	if err := index.Execute(w, nil); err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
	}
}

var session *mgo.Session

func main() {

    var err error
    session, err = mgo.Dial("localhost")
    if err != nil {
        panic(err)
    }

    http.HandleFunc("/", hello)
	if err := http.ListenAndServe(":8111", nil); err != nil {
		panic(err)
	}

    http.HandleFunc("/sign", sign)
}