⚡ when high concurrency occurs, the connection is full and the connec…

…tion is rejected.

api/client.go

@@ -122,6 +122,7 @@ func (c *httpClient) Do(ctx context.Context, req *http.Request) (*http.Response,
 	if ctx != nil {
 		req = req.WithContext(ctx)
 	}
+	defer c.client.CloseIdleConnections()
 	resp, err := c.client.Do(req)
 	defer func() {
 		if resp != nil {