public async Task Load()
{
var response = await container.ReadItemStreamAsync(TransactionEntityId, partitionKey);
if (response.IsSuccessStatusCode)
{
value = FromStream(response.Content);
etag = value.Etag;
}
else
{
response = await container.CreateItemStreamAsync(ToStream(new TransactionRecord
{
Id = TransactionEntityId,
PartitionId = partitionId
}), partitionKey);
if (!response.IsSuccessStatusCode)
{
throw new Exception($"Failed to create transaction record for partition {partitionKey}");
}
value = FromStream(response.Content);
etag = value.Etag;
}
}
async Task Update()
{
var options = new ItemRequestOptions
{
IfMatchEtag = etag
};
var response = await container.ReplaceItemStreamAsync(ToStream(value), TransactionEntityId, partitionKey, options);
value = FromStream(response.Content);
etag = value.Etag;
}
Stream ToStream(TransactionRecord input)
{
var streamPayload = new MemoryStream();
using (var streamWriter = new StreamWriter(streamPayload, DefaultEncoding, 1024, true))
{
using (JsonWriter writer = new JsonTextWriter(streamWriter))
{
writer.Formatting = Formatting.None;
serializer.Serialize(writer, input);
writer.Flush();
streamWriter.Flush();
}
}
streamPayload.Position = 0;
return(streamPayload);
}
