gistfile1.txt

func (h *handler) GetData(ctx context.Context, request Payload) (*Data, error) {

    go func(ctx context.Context) {
        <-ctx.Done()
        if ctx.Err() == context.Canceled {
            log.Info(ctx.Err())
        }
    }(ctx)

    data := fetchData(request)
    return data, nil
}