restructured the project to comply community guideline, for others check release note

internal/api/v1/utils/error.go

@@ -0,0 +1,34 @@
+package utils
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+
+	"github.com/sirupsen/logrus"
+	E "github.com/yusing/go-proxy/internal/error"
+)
+
+var Logger = logrus.WithField("module", "api")
+
+func HandleErr(w http.ResponseWriter, r *http.Request, origErr error, code ...int) {
+	err := E.From(origErr).Subjectf("%s %s", r.Method, r.URL)
+	Logger.Error(err)
+	if len(code) > 0 {
+		http.Error(w, err.String(), code[0])
+		return
+	}
+	http.Error(w, err.String(), http.StatusInternalServerError)
+}
+
+func ErrMissingKey(k string) error {
+	return errors.New("missing key '" + k + "' in query or request body")
+}
+
+func ErrInvalidKey(k string) error {
+	return errors.New("invalid key '" + k + "' in query or request body")
+}
+
+func ErrNotFound(k, v string) error {
+	return fmt.Errorf("key %q with value %q not found", k, v)
+}