Get Option Expire Dates Example

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This topic demonstrates how a list of an option's expiration dates can be retrieved.

Import the following namespaces:
C#
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```
using ETradeNet.Market;
using ETradeNet.Market.OptionExpireDate.Data;
```

Implement the following method:

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async Task<IEnumerable<ExpirationDate>> GetOptionExpireDatesAsync(string underlier, IMarketInitializer init)
{
    using (var market = new MarketService(init))
    {
        var response = await market.OptionExpireDate.GetListAsync(underlier);
        return response.ExpirationDate;
    }
}

We recommend that you accommodate for cancellation by passing a CancellationToken wherever possible (i.e., in all calls that don't result in a Stream). The example above only omits it for clarity.

Reference

MarketServiceMarketService

IOptionExpireDateResourceGetListAsync