public static Task CallSubstrate(this BackgroundService service, ILogger logger, PublicKey contractKey, string nodeEndpoint, Address from, byte[] privateKey, Func <IApplication, IExtrinsicCall> callGenerator)
{
var completionSource = new TaskCompletionSource();
Task.Run(async() =>
{
SafeApplication application = SafeApplication.CreateApplication(
ex =>
{
logger.LogError(ex, "{ServiceName} substrate api failed", service.GetType().FullName);
Interlocked.Exchange <TaskCompletionSource?>(ref completionSource, null)?.SetException(ex);
}, logger, contractKey);
try
{
application.Application.Connect(nodeEndpoint);
var call = callGenerator(application.Application !);
application.HealthCheck(TimeSpan.FromMinutes(10), () =>
{
Interlocked.Exchange <TaskCompletionSource?>(ref completionSource, null)?.SetException(new TimeoutException());
application.Dispose();
});
var result =
await application.Application.SignWaitRetryOnLowPriority(from,
privateKey, call);
application.CancelHealthCheck();
result.Switch(_ =>
{
Interlocked.Exchange <TaskCompletionSource?>(ref completionSource, null)?.SetResult();
}, fail =>
{
var error = fail.ErrorMessage(application.Application);
logger.LogError("Failed to call substrate, {ErrorText}", error);
Interlocked.Exchange <TaskCompletionSource?>(ref completionSource, null)?.SetException(new ApplicationException(error));
});
}
catch (Exception ex)
{
Interlocked.Exchange <TaskCompletionSource?>(ref completionSource, null)?.SetException(ex);
}
finally
{
application.Dispose();
}
});
return(completionSource.Task);
}
