working commit

app/router/bindobj.go

@@ -0,0 +1,51 @@
+package router
+
+import (
+	"reflect"
+	"strconv"
+)
+
+// Don't ask me how it works. ;)
+func bindObj(obj interface{}, kvmap map[string]string, sTag string) error {
+	var err error
+	vElem := reflect.ValueOf(obj).Elem()
+	sElem := reflect.TypeOf(obj).Elem()
+	for i := 0; i < vElem.NumField(); i++ {
+		vField := vElem.Field(i)
+		tag := sElem.Field(i).Tag.Get(sTag)
+		if tag != "" {
+			sVal, exists := kvmap[tag]
+			if exists {
+				switch vField.Kind() {
+				case reflect.String:
+					vField.SetString(sVal)
+				case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+					iVal, err := strconv.ParseInt(sVal, 10, 64)
+					if err != nil {
+						return err
+					}
+					vField.SetInt(iVal)
+				case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+					iVal, err := strconv.ParseUint(sVal, 10, 64)
+					if err != nil {
+						return err
+					}
+					vField.SetUint(iVal)
+				case reflect.Bool:
+					bVal, err := strconv.ParseBool(sVal)
+					if err != nil {
+						return err
+					}
+					vField.SetBool(bVal)
+				case reflect.Float32, reflect.Float64:
+					fVal, err := strconv.ParseFloat(sVal, 64)
+					if err != nil {
+						return err
+					}
+					vField.SetFloat(fVal)
+				}
+			}
+		}
+	}
+	return err
+}

app/router/context.go

@@ -1,8 +1,10 @@
 package router
 
 import (
+	"bytes"
 	"context"
 	"encoding/json"
+	"io"
 	"net/http"
 )
 
@@ -47,6 +49,37 @@ func (rctx *Context) GetContext() context.Context {
 	return rctx.Request.Context()
 }
 
+// Binding
+
+const emptyJSON = "{}"
+
+func (ctx *Context) BindJSON(obj any) error {
+	buffer := bytes.NewBuffer(nil)
+	_, err := io.Copy(buffer, ctx.Request.Body)
+	if err != nil {
+		return err
+	}
+	reqBody := buffer.Bytes()
+	if len(reqBody) == 0 {
+		reqBody = []byte(emptyJSON)
+	}
+	err = json.Unmarshal(reqBody, obj)
+	if err != nil {
+		return err
+	}
+	return err
+}
+
+func (ctx *Context) BindQuery(obj any) error {
+	qMap := make(map[string]string)
+	for key, val := range ctx.Request.URL.Query() {
+		if len(val) == 1 {
+			qMap[key] = val[0]
+		}
+	}
+	return bindObj(obj, qMap, "param")
+}
+
 // Response
 func (rctx *Context) SetHeader(key, value string) {
 	rctx.Writer.Header().Set(key, value)