public async Task <IActionResult> LoadColdData()
        {
            await _importMetaDataService.ImportAllCurrencies();

            await _importMetaDataService.ImportAllExchanges();

            await _importMetaDataService.ImportAllExchangePairs();

            return(Ok());
        }
        public async Task ImportAllExchanges()
        {
            await _coldImportTests.ImportAllExchanges();

            var      context  = Context();
            Exchange exchange = await context.Exchanges.FirstOrDefaultAsync(x => x.Name == "DSX");

            Assert.NotNull(exchange);
            Assert.Equal("DSX", exchange.Name);
        }