private async Task HandleRequestAsync(HttpContext context)
{
// first we need to get the request executor to be able to execute requests.
IRequestExecutor requestExecutor = await GetExecutorAsync(context.RequestAborted);
IHttpRequestInterceptor requestInterceptor = requestExecutor.GetRequestInterceptor();
IErrorHandler errorHandler = requestExecutor.GetErrorHandler();
HttpStatusCode? statusCode = null;
IExecutionResult?result;
try
{
// next we parse the GraphQL request.
GraphQLRequest request = _requestParser.ReadParamsRequest(context.Request.Query);
GraphQLServerOptions?options = context.GetGraphQLServerOptions();
result = await ExecuteSingleAsync(
context,
requestExecutor,
requestInterceptor,
request,
options is null or { AllowedGetOperations : AllowedGetOperations.Query }
?_onlyQueries
: null);
}
private async Task HandleRequestAsync(HttpContext context)
{
// first we need to get the request executor to be able to execute requests.
IRequestExecutor requestExecutor = await GetExecutorAsync(context.RequestAborted);
IHttpRequestInterceptor requestInterceptor = requestExecutor.GetRequestInterceptor();
IErrorHandler errorHandler = requestExecutor.GetErrorHandler();
context.Items[WellKnownContextData.RequestExecutor] = requestExecutor;
HttpStatusCode? statusCode = null;
IExecutionResult?result;
// next we parse the GraphQL request.
GraphQLRequest request;
using (_diagnosticEvents.ParseHttpRequest(context))
{
try
{
request = _requestParser.ReadParamsRequest(context.Request.Query);
}
catch (GraphQLRequestException ex)
{
// A GraphQL request exception is thrown if the HTTP request body couldn't be
// parsed. In this case we will return HTTP status code 400 and return a
// GraphQL error result.
statusCode = HttpStatusCode.BadRequest;
IReadOnlyList <IError> errors = errorHandler.Handle(ex.Errors);
result = QueryResultBuilder.CreateError(errors);
_diagnosticEvents.ParserErrors(context, errors);
goto HANDLE_RESULT;
}
catch (Exception ex)
{
statusCode = HttpStatusCode.InternalServerError;
IError error = errorHandler.CreateUnexpectedError(ex).Build();
result = QueryResultBuilder.CreateError(error);
_diagnosticEvents.HttpRequestError(context, error);
goto HANDLE_RESULT;
}
}
// after successfully parsing the request we now will attempt to execute the request.
try
{
GraphQLServerOptions?options = context.GetGraphQLServerOptions();
result = await ExecuteSingleAsync(
context,
requestExecutor,
requestInterceptor,
_diagnosticEvents,
request,
options is null or { AllowedGetOperations : AllowedGetOperations.Query }
?_onlyQueries
: null);
}
private async Task HandleRequestAsync(HttpContext context)
{
// first we need to get the request executor to be able to execute requests.
IRequestExecutor requestExecutor = await GetExecutorAsync(context.RequestAborted);
IHttpRequestInterceptor requestInterceptor = requestExecutor.GetRequestInterceptor();
IErrorHandler errorHandler = requestExecutor.GetErrorHandler();
HttpStatusCode? statusCode = null;
IExecutionResult?result;
try
{
// next we parse the GraphQL request.
GraphQLRequest request = _requestParser.ReadParamsRequest(context.Request.Query);
result = await ExecuteSingleAsync(
context, requestExecutor, requestInterceptor, request);
}
catch (GraphQLRequestException ex)
{
// A GraphQL request exception is thrown if the HTTP request body couldn't be
// parsed. In this case we will return HTTP status code 400 and return a
// GraphQL error result.
statusCode = HttpStatusCode.BadRequest;
result = QueryResultBuilder.CreateError(errorHandler.Handle(ex.Errors));
}
catch (Exception ex)
{
statusCode = HttpStatusCode.InternalServerError;
IError error = errorHandler.CreateUnexpectedError(ex).Build();
result = QueryResultBuilder.CreateError(error);
}
// in any case we will have a valid GraphQL result at this point that can be written
// to the HTTP response stream.
Debug.Assert(result is not null, "No GraphQL result was created.");
await WriteResultAsync(context.Response, result, statusCode, context.RequestAborted);
}
