Added db connection creation

Author: romanoff

db.go

@@ -0,0 +1,30 @@
+package main
+
+import (
+	"database/sql"
+	"fmt"
+	_ "github.com/lib/pq"
+)
+
+const (
+	DB_USER     = "user"
+	DB_PASSWORD = "password"
+	DB_NAME     = "dbname"
+	DB_HOST     = "dbname"
+	DB_PORT     = "5432"
+	DB_SSLMODE  = "disabled"
+)
+
+func GetDbConnection() (*sql.DB, error) {
+	dbinfo := fmt.Sprintf("postgres://%s:%s@%s:%s/%s?sslmode=%s",
+		DB_USER, DB_PASSWORD, DB_HOST, DB_PORT, DB_NAME, DB_SSLMODE)
+	db, err := sql.Open("postgres", dbinfo)
+	if err != nil {
+		return nil, err
+	}
+	err = db.Ping()
+	if err != nil {
+		return nil, err
+	}
+	return db, nil
+}

main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"database/sql"
 	"encoding/json"
 	"fmt"
 	"github.com/julienschmidt/httprouter"
@@ -52,11 +53,17 @@ func handler(route *Route) func(http.ResponseWriter, *http.Request, httprouter.P
 	}
 }
 
+var db *sql.DB
+
 func main() {
 	routes, err := ParseRoutes(".")
 	if err != nil {
 		log.Fatal(err)
 	}
+	db, err = GetDbConnection()
+	if err != nil {
+		log.Fatal(err)
+	}
 	router := httprouter.New()
 	for _, route := range routes {
 		if route.Method == "GET" {