extract value extracting and convertion to functions; support uuid

1 files changed, 43 insertions, 0 deletions

diff --git a/hh.go b/hh.go
index 16c25d2..84df871 100644
--- a/hh.go
+++ b/hh.go
@@ -1 +1,44 @@
 package hh
+
+import (
+	"net/http"
+	"strconv"
+
+	"github.com/google/uuid"
+)
+
+func ExtractFromForm(r *http.Request, name string) (string, bool) {
+	value := r.Form[name]
+	if len(value) == 0 {
+		return "", true
+	}
+	return value[0], false
+}
+
+func ExtractFromPath(r *http.Request, name string) (string, bool) {
+	value := r.PathValue(name)
+	if value == "" {
+		return "", true
+	}
+	return value, false
+}
+
+func ExtractFromCookie(r *http.Request, name string) (string, bool) {
+	value, err := r.Cookie(name)
+	if err != nil {
+		return "", true
+	}
+	return value.Value, false
+}
+
+func ConvertToInt(value string) (int, error) {
+	return strconv.Atoi(value)
+}
+
+func ConvertToString(value string) (string, error) {
+	return value, nil
+}
+
+func ConvertToUuidUUID(value string) (uuid.UUID, error) {
+	return uuid.Parse(value)
+}