private static async Task ExecuteAsync(HttpContext context, ISchema schema)
{
GraphQLRequest request;
using (var reader = new StreamReader(context.Request.Body))
using (var jsonReader = new JsonTextReader(reader))
{
var ser = new JsonSerializer();
request = ser.Deserialize <GraphQLRequest>(jsonReader);
}
var executer = new DocumentExecuter();
var result = await executer.ExecuteAsync(options =>
{
options.Schema = schema;
if (request == null)
{
return;
}
options.Query = request.Query;
options.OperationName = request.OperationName;
options.Inputs = request.Variables.ToInputs();
});
context.Response.ContentType = "application/json";
context.Response.StatusCode =
result.Errors?.Any() == true ? (int)HttpStatusCode.BadRequest : (int)HttpStatusCode.OK;
var writer = new DocumentWriter();
await writer.WriteAsync(context.Response.Body, result);
}
private static async Task WriteResultAsync(HttpContext httpContext, ExecutionResult executionResult)
{
httpContext.Response.ContentType = "application/json";
httpContext.Response.StatusCode =
executionResult.Errors?.Any() == true ? (int)HttpStatusCode.BadRequest : (int)HttpStatusCode.OK;
var writer = new DocumentWriter(true);
await writer.WriteAsync(httpContext.Response.Body, executionResult);
}
public async Task WriteAsync <T>(Stream stream, T value,
CancellationToken cancellationToken = default)
{
await using (var bufferStream = new FileBufferingWriteStream())
{
await documentWriter.WriteAsync(bufferStream, value, cancellationToken);
await bufferStream.DrainBufferAsync(stream, cancellationToken);
}
}