feat: enable always bind query params

refer: labstack/echo#1670

pkg/echox/query_binder.go

@@ -0,0 +1,25 @@
+package echox
+
+import "github.com/labstack/echo/v4"
+
+// UseDefaultQueryBinder change behavior of query binder to use default binder
+// enable always bind query params
+// cause https://github.com/labstack/echo/issues/1670 disable bind query params for POST/PUT methods
+func UseDefaultQueryBinder(e *echo.Echo) {
+	e.Binder = &defaultQueryBinder{
+		binder:        e.Binder,
+		defaultBinder: new(echo.DefaultBinder),
+	}
+}
+
+type defaultQueryBinder struct {
+	binder        echo.Binder
+	defaultBinder *echo.DefaultBinder
+}
+
+func (b *defaultQueryBinder) Bind(i interface{}, c echo.Context) error {
+	if err := b.defaultBinder.BindQueryParams(c, i); err != nil {
+		return err
+	}
+	return b.binder.Bind(i, c)
+}

pkg/echox/query_binder_test.go

@@ -0,0 +1,51 @@
+package echox
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"github.com/labstack/echo/v4"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_query_binder_query_param(t *testing.T) {
+	type Foo struct {
+		Id   int    `json:"id"`
+		Name string `json:"name" query:"name"`
+	}
+
+	build := func() (*echo.Echo, *httptest.ResponseRecorder, echo.Context) {
+		e := echo.New()
+		req := httptest.NewRequest(http.MethodPost, "/api/endpoint?name=foo", strings.NewReader(`{"id": 1}`))
+		req.Header.Set(echo.HeaderContentType, echo.MIMEApplicationJSON)
+		rec := httptest.NewRecorder()
+		c := e.NewContext(req, rec)
+		return e, rec, c
+	}
+
+	handler := func(c echo.Context) error {
+		var foo Foo
+		if err := c.Bind(&foo); err != nil {
+			return err
+		}
+		return c.JSON(http.StatusOK, foo)
+	}
+
+	e, rec, c := build()
+	err := handler(c)
+	require.NoError(t, err)
+	body := rec.Body.String()
+	assert.Contains(t, body, `"id":1`)
+	assert.Contains(t, body, `"name":""`)
+
+	e, rec, c = build()
+	UseDefaultQueryBinder(e)
+	err = handler(c)
+	require.NoError(t, err)
+	body = rec.Body.String()
+	assert.Contains(t, body, `"id":1`)
+	assert.Contains(t, body, `"name":"foo"`)
+}