protected async Task HandleStartAsync(OperationMessageContext context)
{
var payload = context.Op.Payload;
var query = payload is GraphQLQuery ? payload : context.Op.Payload.ToObject <GraphQLQuery>();
var options = context.Connection.Options;
var exOptions = new ExecutionOptions
{
Schema = _schema,
OperationName = query.OperationName,
Inputs = query.GetInputs(),
Query = query.Query,
ExposeExceptions = options?.ExposeExceptions ?? false,
ValidationRules = options?.ValidationRules,
UserContext = options?.BuildUserContext?.Invoke(context)
};
var isSubscription = _determinator.IsSubscription(exOptions);
if (isSubscription)
{
var result = await SubscribeAsync(exOptions).ConfigureAwait(false);
await AddSubscription(context, result).ConfigureAwait(false);
_log.LogInformation($"Subscription: {context.Op.Id} started");
}
else
{
var result = await ExecuteAsync(exOptions).ConfigureAwait(false);
_log.LogInformation($"Subscription: {context.Op.Id} started");
await context.MessageWriter.WriteMessageAsync(new OperationMessage
{
Type = MessageTypes.GQL_DATA,
Id = context.Op.Id,
Payload = result
});
await context.MessageWriter.WriteMessageAsync(new OperationMessage
{
Type = MessageTypes.GQL_COMPLETE,
Id = context.Op.Id
});
_log.LogInformation($"Subscription: {context.Op.Id} completed");
}
}
private Task <ExecutionResult> ExecuteAsync(ExecutionOptions options)
{
return(_documentExecuter.ExecuteAsync(options));
}
private Task <SubscriptionExecutionResult> SubscribeAsync(ExecutionOptions options)
{
return(_subscriptionExecuter.SubscribeAsync(options));
}