CryptoExchange.Net/Examples/BlazorClient/Pages/SpotClient.razor

@page "/SpotClient"
@using CryptoExchange.Net.SharedApis
@using System.Diagnostics
@inject IEnumerable<ISpotTickerRestClient> restClients

<h3>ETH-BTC prices:</h3>
@foreach(var price in _prices.OrderBy(p => p.Key))
{
    <div>@price.Key: @price.Value</div>
}

@code{
    private Dictionary<string, decimal?> _prices = new Dictionary<string, decimal?>();

    protected override async Task OnInitializedAsync()
    {
        var symbol = new SharedSymbol(TradingMode.Spot, "ETH", "BTC");
        var tasks = restClients.Select(x => x.GetSpotTickerAsync(new GetTickerRequest(symbol)));
        await Task.WhenAll(tasks);
        foreach (var ticker in tasks.Select(x => x.Result))
        {
            if (ticker.Success)
                _prices.Add(ticker.Exchange, ticker.Data.LastPrice);
            else
                Debug.WriteLine($"{ticker.Exchange} failed: {ticker.Error}");
        }
    }

}