public static async Task <HttpResponseMessage> GetResponseAsync(this HttpRequest request)
{
try
{
if (request == null)
{
throw new ArgumentNullException(nameof(request));
}
int parts = Helpers.ParseRoute(
request.Path,
out string database,
out string container,
out string partitionKey,
out string id,
out int maxItemCount);
return((request.Method.ToLowerInvariant()) switch
{
"get" => await CosmosService.ReadItemStreamAsync(database, container, partitionKey, id),
"post" => parts == 4
? await CosmosService.CreateItemStreamAsync(database, container, partitionKey, request.Body)
: await CosmosService.GetItemQueryStreamIterator(database, container, partitionKey, request.Body, request.Headers["Continuation-Token"], maxItemCount),
"put" => parts == 4
? await CosmosService.UpsertItemStreamAsync(database, container, partitionKey, request.Body)
: await CosmosService.ReplaceItemStreamAsync(database, container, partitionKey, id, request.Body),
"delete" => await CosmosService.DeleteItemStreamAsync(database, container, partitionKey, id),
_ => CosmosService.ErrorResponse("Request method did not match one of the Cosmos API method signatures.")
});
}
internal static HttpResponseMessage ConvertHttpResponseMessage(this Response response)
{
if (response == null)
{
return(CosmosService.ErrorResponse("There was no response from Azure Cosmos."));
}
// Would be really nice if we could simply pass the Cosmos response directly back,
// but, alas, we must reconstruct a return response.
var result = new HttpResponseMessage();
// Pass Cosmos response headers back.
foreach (var headerName in response.Headers)
{
result.Headers.Add(headerName.Name, headerName.Value);
}
// Pass Cosmos status code back.
result.StatusCode = (HttpStatusCode)response.Status;
if (response.ContentStream != null)
{
// Pass stream directly to response object, without deserializing.
result.Content = new StreamContent(response.ContentStream);
}
return(result);
}
