Release version 12.2.0-beta2

_examples/recover/panic-and-custom-error-handler-with-compression/main.go

@@ -0,0 +1,64 @@
+package main
+
+import (
+	"errors"
+	"fmt"
+
+	"github.com/kataras/iris/v12"
+	//	"github.com/kataras/iris/v12/context"
+)
+
+func main() {
+	app := iris.New()
+	app.UseRouter(iris.Compression)
+	app.UseRouter(myErrorHandler)
+
+	app.Get("/", handler)
+
+	app.Listen(":8080")
+}
+
+func myErrorHandler(ctx iris.Context) {
+	recorder := ctx.Recorder()
+
+	defer func() {
+		var err error
+
+		if v := recover(); v != nil { // panic
+			if panicErr, ok := v.(error); ok {
+				err = panicErr
+			} else {
+				err = errors.New(fmt.Sprint(v))
+			}
+		} else { // custom error.
+			err = ctx.GetErr()
+		}
+
+		if err != nil {
+			// To keep compression after reset:
+			// clear body and any headers created between recorder and handler.
+			recorder.ResetBody()
+			recorder.ResetHeaders()
+			//
+
+			// To disable compression after reset:
+			// recorder.Reset()
+			// recorder.ResponseWriter.(*context.CompressResponseWriter).Disabled = true
+			//
+
+			ctx.StopWithJSON(iris.StatusInternalServerError, iris.Map{
+				"message": err.Error(),
+			})
+		}
+	}()
+
+	ctx.Next()
+}
+
+func handler(ctx iris.Context) {
+	ctx.WriteString("Content may fall")
+	ctx.Header("X-Test", "value")
+
+	// ctx.SetErr(fmt.Errorf("custom error message"))
+	panic("errr!")
+}