Use fuego.Flow instead of redefining the flow in GinHandler

extra/fuegogin/adaptor.go

@@ -64,19 +64,7 @@ func GinHandler[B, T any](engine *fuego.Engine, handler func(c fuego.ContextWith
 			ginCtx: c,
 		}
 
-		resp, err := handler(context)
-		if err != nil {
-			err = engine.ErrorHandler(err)
-			c.JSON(getErrorCode(err), err)
-			return
-		}
-
-		if c.Request.Header.Get("Accept") == "application/xml" {
-			c.XML(200, resp)
-			return
-		}
-
-		c.JSON(200, resp)
+		fuego.Flow(engine, context, handler)
 	}
 }
 

extra/fuegogin/context.go

@@ -16,7 +16,10 @@ type ginContext[B any] struct {
 	ginCtx *gin.Context
 }
 
-var _ fuego.ContextWithBody[any] = &ginContext[any]{}
+var (
+	_ fuego.ContextWithBody[any] = &ginContext[any]{}
+	_ fuego.ContextFlowable[any] = &ginContext[any]{}
+)
 
 func (c ginContext[B]) Body() (B, error) {
 	var body B
@@ -77,10 +80,36 @@ func (c ginContext[B]) SetCookie(cookie http.Cookie) {
 	c.ginCtx.SetCookie(cookie.Name, cookie.Value, cookie.MaxAge, cookie.Path, cookie.Domain, cookie.Secure, cookie.HttpOnly)
 }
 
+func (c ginContext[B]) HasCookie(name string) bool {
+	_, err := c.Cookie(name)
+	return err == nil
+}
+
+func (c ginContext[B]) HasHeader(key string) bool {
+	_, ok := c.ginCtx.Request.Header[key]
+	return ok
+}
+
 func (c ginContext[B]) SetHeader(key, value string) {
 	c.ginCtx.Header(key, value)
 }
 
 func (c ginContext[B]) SetStatus(code int) {
 	c.ginCtx.Status(code)
 }
+
+func (c ginContext[B]) Serialize(data any) error {
+	c.ginCtx.JSON(http.StatusOK, data)
+	return nil
+}
+
+func (c ginContext[B]) SerializeError(err error) {
+	c.ginCtx.JSON(http.StatusInternalServerError, err)
+}
+
+func (c ginContext[B]) SetDefaultStatusCode() {
+	if c.DefaultStatusCode == 0 {
+		c.DefaultStatusCode = http.StatusOK
+	}
+	c.SetStatus(c.DefaultStatusCode)
+}