refact: refactored api.rest utility functions into separate file.

modules/api_rest_utils.go

@@ -0,0 +1,45 @@
+package modules
+
+import (
+	"encoding/json"
+	"io"
+
+	"github.com/gin-gonic/gin"
+	"github.com/gin-gonic/gin/binding"
+)
+
+type CommandRequest struct {
+	Command string `json:"cmd"`
+}
+
+type APIResponse struct {
+	Success bool   `json:"success"`
+	Message string `json:"msg"`
+}
+
+func SafeBind(c *gin.Context, obj interface{}) error {
+	decoder := json.NewDecoder(io.LimitReader(c.Request.Body, 100*1024))
+	if binding.EnableDecoderUseNumber {
+		decoder.UseNumber()
+	}
+	if err := decoder.Decode(obj); err != nil {
+		return err
+	}
+
+	if binding.Validator == nil {
+		return nil
+	}
+	return binding.Validator.ValidateStruct(obj)
+}
+
+func BadRequest(c *gin.Context, optMsg ...string) {
+	msg := "Bad Request"
+	if len(optMsg) > 0 {
+		msg = optMsg[0]
+	}
+	c.JSON(400, APIResponse{
+		Success: false,
+		Message: msg,
+	})
+	c.Abort()
+}