public async Task <QueryStream> QueryAsync(
Query query,
CancellationToken cancellationToken)
{
try
{
_logger.Query(query);
var schemaOptions = _options;
var document = query.Document;
var schema = await schemaOptions.GetSchema(query);
var executionOptions = new ExecutionOptions
{
Schema = schema,
Document = document,
OperationName = query.OperationName,
VariableValues = query.Variables,
InitialValue = null,
LoggerFactory = _loggerFactory,
Extensions = _extensions,
Validate = (s, d, v) => ExecutionOptions.DefaultValidate(
schemaOptions.ValidationRules,
s,
d,
v)
};
// is subscription
if (document.OperationDefinitions
?.Any(op => op.Operation == OperationType.Subscription) ?? false)
{
return(await SubscribeAsync(
executionOptions,
cancellationToken));
}
// is query or mutation
return(await ExecuteAsync(
executionOptions,
cancellationToken));
}
catch (Exception e)
{
_logger.LogError($"Failed to execute query '{query.Document.ToGraphQL()}'. Error. '{e}'");
var channel = Channel.CreateBounded <ExecutionResult>(1);
channel.Writer.TryComplete(e);
return(new QueryStream(channel));
}
}