Added login, some auth methods and a couple routes with no implementation

server/utils/utils.go

@@ -0,0 +1,34 @@
+package utils
+
+import (
+	"strconv"
+	"time"
+
+	"github.com/dgrijalva/jwt-go"
+	"golang.org/x/crypto/bcrypt"
+)
+
+func Encrypt(s string) (string, error) {
+	b, err := bcrypt.GenerateFromPassword([]byte(s), bcrypt.DefaultCost)
+	if err != nil {
+		return "", err
+	}
+
+	return string(b), nil
+}
+
+func CheckHash(hash, password string) bool {
+	return bcrypt.CompareHashAndPassword([]byte(hash), []byte(password)) == nil
+}
+
+func GenerateToken(userID int, secret string) (string, error) {
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{
+		"userID": strconv.Itoa(userID),
+	})
+
+	return token.SignedString([]byte(secret))
+}
+
+func Millis(t time.Time) int {
+	return int(t.UnixNano() / 1000000)
+}