public async Task <ResponseWithHeaders <QueryResult, QueryQueryTwinsHeaders> > QueryTwinsAsync(QuerySpecification querySpecification, QueryTwinsOptions queryTwinsOptions = null, CancellationToken cancellationToken = default)
{
if (querySpecification == null)
{
throw new ArgumentNullException(nameof(querySpecification));
}
using var message = CreateQueryTwinsRequest(querySpecification, queryTwinsOptions);
await _pipeline.SendAsync(message, cancellationToken).ConfigureAwait(false);
var headers = new QueryQueryTwinsHeaders(message.Response);
switch (message.Response.Status)
{
case 200:
{
QueryResult value = default;
using var document = await JsonDocument.ParseAsync(message.Response.ContentStream, default, cancellationToken).ConfigureAwait(false);
value = QueryResult.DeserializeQueryResult(document.RootElement);
return(ResponseWithHeaders.FromValue(value, headers, message.Response));
}
internal HttpMessage CreateQueryTwinsRequest(QuerySpecification querySpecification, QueryTwinsOptions queryTwinsOptions)
{
var message = _pipeline.CreateMessage();
var request = message.Request;
request.Method = RequestMethod.Post;
var uri = new RawRequestUriBuilder();
uri.Reset(endpoint);
uri.AppendPath("/query", false);
uri.AppendQuery("api-version", apiVersion, true);
request.Uri = uri;
if (queryTwinsOptions?.Traceparent != null)
{
request.Headers.Add("traceparent", queryTwinsOptions.Traceparent);
}
if (queryTwinsOptions?.Tracestate != null)
{
request.Headers.Add("tracestate", queryTwinsOptions.Tracestate);
}
if (queryTwinsOptions?.MaxItemsPerPage != null)
{
request.Headers.Add("max-items-per-page", queryTwinsOptions.MaxItemsPerPage.Value);
}
request.Headers.Add("Content-Type", "application/json");
request.Headers.Add("Accept", "application/json");
var content = new Utf8JsonRequestContent();
content.JsonWriter.WriteObjectValue(querySpecification);
request.Content = content;
return(message);
}
