Add query parameter converters for complex types

* Add converter for URL query parameters of type map[string][]string
* Add converter for URL query parameters of type time.Time
* Added function to allocate and configure schema.Decoder for API use
* Updated API handlers to leverage new converters, and correct handler
  code for filter type

An encoding example for a client using filters:

  v := map[string][]string{
      "dangling": {"true"},
  }
  payload, err := jsoniter.MarshalToString(v)
  if err != nil {
    panic(err)
  }
  payload = "?filters=" + url.QueryEscape(payload)

Signed-off-by: Jhon Honce <jhonce@redhat.com>

1 files changed, 5 insertions, 4 deletions

diff --git a/pkg/api/handlers/handler.go b/pkg/api/handlers/handler.go
index 4f303f6ab..d60a5b239 100644
--- a/pkg/api/handlers/handler.go
+++ b/pkg/api/handlers/handler.go
@@ -15,10 +15,11 @@ func getVar(r *http.Request, k string) string {
 	return mux.Vars(r)[k]
 }
 
-func hasVar(r *http.Request, k string) bool {
-	_, found := mux.Vars(r)[k]
-	return found
-}
+// func hasVar(r *http.Request, k string) bool {
+// 	_, found := mux.Vars(r)[k]
+// 	return found
+// }
+
 func getName(r *http.Request) string {
 	return getVar(r, "name")
 }