fix: shared channel errcheck issues (#28542)

server/.golangci.yml

@@ -101,7 +101,6 @@ issues:
         channels/api4/saml.go|\
         channels/api4/scheme.go|\
         channels/api4/scheme_test.go|\
-        channels/api4/shared_channel.go|\
         channels/api4/shared_channel_test.go|\
         channels/api4/status.go|\
         channels/api4/status_test.go|\

server/channels/api4/shared_channel.go

@@ -60,7 +60,9 @@ func getSharedChannels(c *Context, w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	w.Write(b)
+	if _, err := w.Write(b); err != nil {
+		c.Logger.Warn("Error while writing response", mlog.Err(err))
+	}
 }
 
 func getRemoteClusterInfo(c *Context, w http.ResponseWriter, r *http.Request) {
@@ -90,7 +92,9 @@ func getRemoteClusterInfo(c *Context, w http.ResponseWriter, r *http.Request) {
 		c.SetJSONEncodingError(err)
 		return
 	}
-	w.Write(b)
+	if _, err := w.Write(b); err != nil {
+		c.Logger.Warn("Error while writing response", mlog.Err(err))
+	}
 }
 
 func getSharedChannelRemotesByRemoteCluster(c *Context, w http.ResponseWriter, r *http.Request) {