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path: root/pkg/api/handlers/utils/handler.go
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-rw-r--r--pkg/api/handlers/utils/handler.go47
1 files changed, 46 insertions, 1 deletions
diff --git a/pkg/api/handlers/utils/handler.go b/pkg/api/handlers/utils/handler.go
index 517dccad0..ebbe7f24f 100644
--- a/pkg/api/handlers/utils/handler.go
+++ b/pkg/api/handlers/utils/handler.go
@@ -1,16 +1,17 @@
package utils
import (
- "encoding/json"
"fmt"
"io"
"net/http"
"net/url"
"os"
"strings"
+ "unsafe"
"github.com/blang/semver"
"github.com/gorilla/mux"
+ jsoniter "github.com/json-iterator/go"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
)
@@ -144,6 +145,50 @@ func WriteResponse(w http.ResponseWriter, code int, value interface{}) {
}
}
+func init() {
+ jsoniter.RegisterTypeEncoderFunc("error", MarshalErrorJSON, MarshalErrorJSONIsEmpty)
+ jsoniter.RegisterTypeEncoderFunc("[]error", MarshalErrorSliceJSON, MarshalErrorSliceJSONIsEmpty)
+}
+
+var json = jsoniter.ConfigCompatibleWithStandardLibrary
+
+// MarshalErrorJSON writes error to stream as string
+func MarshalErrorJSON(ptr unsafe.Pointer, stream *jsoniter.Stream) {
+ p := *((*error)(ptr))
+ if p == nil {
+ stream.WriteNil()
+ } else {
+ stream.WriteString(p.Error())
+ }
+}
+
+// MarshalErrorSliceJSON writes []error to stream as []string JSON blob
+func MarshalErrorSliceJSON(ptr unsafe.Pointer, stream *jsoniter.Stream) {
+ a := *((*[]error)(ptr))
+ switch {
+ case len(a) == 0:
+ stream.WriteNil()
+ default:
+ stream.WriteArrayStart()
+ for i, e := range a {
+ if i > 0 {
+ stream.WriteMore()
+ }
+ stream.WriteString(e.Error())
+ }
+ stream.WriteArrayEnd()
+ }
+}
+
+func MarshalErrorJSONIsEmpty(_ unsafe.Pointer) bool {
+ return false
+}
+
+func MarshalErrorSliceJSONIsEmpty(_ unsafe.Pointer) bool {
+ return false
+}
+
+// WriteJSON writes an interface value encoded as JSON to w
func WriteJSON(w http.ResponseWriter, code int, value interface{}) {
// FIXME: we don't need to write the header in all/some circumstances.
w.Header().Set("Content-Type", "application/json")