Add list groups REST endpoint

group_handlers.go

@@ -0,0 +1,33 @@
+package asynqmon
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/gorilla/mux"
+	"github.com/hibiken/asynq"
+)
+
+type listGroupsResponse struct {
+	Groups []*groupInfo `json:"groups"`
+}
+
+func newListGroupsHandlerFunc(inspector *asynq.Inspector) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		qname := mux.Vars(r)["qname"]
+
+		groups, err := inspector.Groups(qname)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		resp := listGroupsResponse{
+			Groups: toGroupInfos(groups),
+		}
+		if err := json.NewEncoder(w).Encode(resp); err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+	}
+}