add early return in case of MGET error to avoid panicking (#91)

Oberonus · web-flow · commit 038cd6a6391d · 2021-06-17T14:28:45.000+03:00
diff --git a/monitor/redis/watcher.go b/monitor/redis/watcher.go
@@ -68,6 +68,7 @@ func (w *Watcher) getValues(ctx context.Context, ch chan<- []*change.Change) {
 	values, err := w.client.MGet(ctx, w.keys...).Result()
 	if err != nil {
 		log.Errorf("failed to MGET keys %v: %v", w.keys, err)
+		return
 	}
 	changes := make([]*change.Change, 0, len(w.keys))
 

Original file line number	Diff line number	Diff line change
`@@ -68,6 +68,7 @@ func (w Watcher) getValues(ctx context.Context, ch chan<- []change.Change) {`
`68`	`68`	`values, err := w.client.MGet(ctx, w.keys...).Result()`
`69`	`69`	`if err != nil {`
`70`	`70`	`log.Errorf("failed to MGET keys %v: %v", w.keys, err)`
	`71`	`+ return`
`71`	`72`	`}`
`72`	`73`	`changes := make([]*change.Change, 0, len(w.keys))`
`73`	`74`