protected async Task <IReadOnlyList <GraphQLRequest> > ReadRequestAsync(
HttpContext context)
{
using (Stream stream = context.Request.Body)
{
IReadOnlyList <GraphQLRequest> batch = null;
switch (ParseContentType(context.Request.ContentType))
{
case AllowedContentType.Json:
batch = await _requestHelper
.ReadJsonRequestAsync(
stream,
context.GetCancellationToken())
.ConfigureAwait(false);
break;
case AllowedContentType.GraphQL:
batch = await _requestHelper
.ReadGraphQLQueryAsync(
stream,
context.GetCancellationToken())
.ConfigureAwait(false);
break;
default:
throw new NotSupportedException();
}
return(batch);
}
}
private async Task ExecuteQueryAsync(
HttpContext context,
IServiceProvider services,
GraphQLRequest request)
{
IReadOnlyQueryRequest queryRequest =
await BuildRequestAsync(
context,
services,
QueryRequestBuilder.From(request))
.ConfigureAwait(false);
IExecutionResult result = await _queryExecutor
.ExecuteAsync(queryRequest, context.GetCancellationToken())
.ConfigureAwait(false);
SetResponseHeaders(
context.Response,
_resultSerializer.ContentType);
await _resultSerializer.SerializeAsync(
result,
context.Response.Body,
context.GetCancellationToken())
.ConfigureAwait(false);
}
private async Task ExecuteOperationBatchAsync(
HttpContext context,
IServiceProvider services,
GraphQLRequest request,
IReadOnlyList <string> operationNames)
{
IReadOnlyList <IReadOnlyQueryRequest> requestBatch =
await BuildBatchRequestAsync(
context, services, request, operationNames)
.ConfigureAwait(false);
IResponseStream responseStream = await _batchExecutor
.ExecuteAsync(requestBatch, context.GetCancellationToken())
.ConfigureAwait(false);
SetResponseHeaders(
context.Response,
_streamSerializer.ContentType);
await _streamSerializer.SerializeAsync(
responseStream,
context.Response.Body,
context.GetCancellationToken())
.ConfigureAwait(false);
}
private async Task ExecuteQueryBatchAsync(
HttpContext context,
IServiceProvider services,
IReadOnlyList <GraphQLRequest> batch)
{
IReadOnlyList <IReadOnlyQueryRequest> requestBatch =
await BuildBatchRequestAsync(context, services, batch)
.ConfigureAwait(false);
SetResponseHeaders(
context.Response,
_streamSerializer.ContentType);
var schemaName = await _schemaNameProvider(context).ConfigureAwait(false);
var _batchExecutor = _batchExecutorProvider.GetExecutor(schemaName);
IResponseStream responseStream = await _batchExecutor
.ExecuteAsync(requestBatch, context.GetCancellationToken())
.ConfigureAwait(false);
await _streamSerializer.SerializeAsync(
responseStream,
context.Response.Body,
context.GetCancellationToken())
.ConfigureAwait(false);
}