Implemented func GatherStatus() to get a list of running services.

pkg/servicestat/list.go

@@ -1,3 +1,22 @@
 package servicestat
 
+import (
+	"encoding/json"
+	"net/http"
+)
+
 type ServiceList map[string]bool
+
+func GatherStatus(url string) (lst ServiceList, err error) {
+	rq, _ := http.NewRequest(http.MethodGet, url, nil)
+	rq.Header.Set("Content-Type", "application/json")
+
+	cl := &http.Client{}
+	r, err := cl.Do(rq)
+	if err != nil {
+		return lst, err
+	}
+	lst = make(ServiceList)
+	err = json.NewDecoder(r.Body).Decode(&lst)
+	return lst, err
+}