public async Task AddAsync(T item, CancellationToken cancellationToken = default(CancellationToken))
{
bool create = false;
try
{
await UpsertDocument(_docDBContext, item);
}
catch (Exception ex)
{
if (CosmosDBUtility.TryGetDocumentClientException(ex, out DocumentClientException de) &&
de.StatusCode == HttpStatusCode.NotFound)
{
if (_docDBContext.ResolvedAttribute.CreateIfNotExists)
{
create = true;
}
else
{
// Throw a custom error so that it's easier to decipher.
string message = $"The collection '{_docDBContext.ResolvedAttribute.CollectionName}' (in database '{_docDBContext.ResolvedAttribute.DatabaseName}') does not exist. To automatically create the collection, set '{nameof(CosmosDBAttribute.CreateIfNotExists)}' to 'true'.";
throw new InvalidOperationException(message, ex);
}
}
else
{
throw;
}
}
if (create)
{
await CosmosDBUtility.CreateDatabaseAndCollectionIfNotExistAsync(_docDBContext);
await UpsertDocument(_docDBContext, item);
}
}
