finish backend login

backend/api/base.go

@@ -0,0 +1,37 @@
+package api
+
+import (
+	"encoding/json"
+	"io"
+)
+
+const (
+	codeError   = -1
+	codeSuccess = 0
+	codeTimeout = 401
+)
+
+const (
+	typeSuccess = "success"
+	typeError   = "error"
+)
+
+const (
+	messageOk = "ok"
+)
+
+type base struct {
+	Code    int    `json:"code"`
+	Message string `json:"message"`
+	Result  any    `json:"result"`
+	Type    string `json:"type"`
+}
+
+func writeresult(w io.Writer, c int, r any, m, t string) error {
+	return json.NewEncoder(w).Encode(&base{
+		Code:    c,
+		Result:  r,
+		Message: m,
+		Type:    t,
+	})
+}