From 57f23d303f35768aa6a4de2797991d18d679644a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Carvalho?= <asantostc@gmail.com>
Date: Fri, 31 Mar 2017 21:29:30 -0300
Subject: [PATCH] api: returns specific type for label values

---
 api/prometheus/api.go      | 10 +++++-----
 api/prometheus/api_test.go |  2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/api/prometheus/api.go b/api/prometheus/api.go
index 9a5cc88..01d857d 100644
--- a/api/prometheus/api.go
+++ b/api/prometheus/api.go
@@ -283,7 +283,7 @@ type QueryAPI interface {
 	// QueryRange performs a query for the given range.
 	QueryRange(ctx context.Context, query string, r Range) (model.Value, error)
 	// QueryLabelValues performs a query for the values of the given label.
-	LabelValues(ctx context.Context, label string) ([]string, error)
+	LabelValues(ctx context.Context, label string) (model.LabelValues, error)
 }
 
 // NewQueryAPI returns a new QueryAPI for the client.
@@ -355,7 +355,7 @@ func (h *httpQueryAPI) QueryRange(ctx context.Context, query string, r Range) (m
 	return model.Value(qres.v), err
 }
 
-func (h *httpQueryAPI) LabelValues(ctx context.Context, label string) ([]string, error) {
+func (h *httpQueryAPI) LabelValues(ctx context.Context, label string) (model.LabelValues, error) {
 	u := h.client.url(epLabelValues, map[string]string{"name": label})
 	req, err := http.NewRequest(http.MethodGet, u.String(), nil)
 	if err != nil {
@@ -365,7 +365,7 @@ func (h *httpQueryAPI) LabelValues(ctx context.Context, label string) ([]string,
 	if err != nil {
 		return nil, err
 	}
-	var values []string
-	err = json.Unmarshal(body, &values)
-	return values, err
+	var labelValues model.LabelValues
+	err = json.Unmarshal(body, &labelValues)
+	return labelValues, err
 }
diff --git a/api/prometheus/api_test.go b/api/prometheus/api_test.go
index 2d6c40b..f7ffc7c 100644
--- a/api/prometheus/api_test.go
+++ b/api/prometheus/api_test.go
@@ -438,7 +438,7 @@ func TestAPIs(t *testing.T) {
 			inRes:     []string{"val1", "val2"},
 			reqMethod: "GET",
 			reqPath:   "/api/v1/label/mylabel/values",
-			res:       []string{"val1", "val2"},
+			res:       model.LabelValues{"val1", "val2"},
 		},
 
 		{