Refresh frontend datasourceSrv after datasource update, no longer need to reload the page to use a newly added or updated datasource, #1493

pkg/api/api.go

@@ -78,6 +78,7 @@ func Register(r *macaron.Macaron) {
 			r.Get("/:id", GetDataSourceById)
 		}, reqAccountAdmin)
 
+		r.Get("/frontend/settings/", GetFrontendSettings)
 		r.Any("/datasources/proxy/:id/*", reqSignedIn, ProxyDataSourceRequest)
 
 		// Dashboard

pkg/api/frontendsettings.go

@@ -9,7 +9,7 @@ import (
 	"github.com/grafana/grafana/pkg/setting"
 )
 
-func getFrontendSettings(c *middleware.Context) (map[string]interface{}, error) {
+func getFrontendSettingsMap(c *middleware.Context) (map[string]interface{}, error) {
 	accountDataSources := make([]*m.DataSource, 0)
 
 	if c.IsSignedIn {
@@ -71,3 +71,13 @@ func getFrontendSettings(c *middleware.Context) (map[string]interface{}, error)
 
 	return jsonObj, nil
 }
+
+func GetFrontendSettings(c *middleware.Context) {
+	settings, err := getFrontendSettingsMap(c)
+	if err != nil {
+		c.JsonApiErr(400, "Failed to get frontend settings", err)
+		return
+	}
+
+	c.JSON(200, settings)
+}

pkg/api/index.go

@@ -7,7 +7,7 @@ import (
 )
 
 func setIndexViewData(c *middleware.Context) error {
-	settings, err := getFrontendSettings(c)
+	settings, err := getFrontendSettingsMap(c)
 	if err != nil {
 		return err
 	}