public async Task <InfraVersion> GetInfraVersionAsync(string stage, string infraName)
{
// Create a retrieve operation that takes the stage (patition key) and infraName (row).
var retrieveOperation = TableOperation.Retrieve <InfraVersion>(stage, infraName);
// Execute the retrieve operation.
TableResult retrievedResult = await _table.ExecuteAsync(retrieveOperation);
// value doesn't exist in db
if (retrievedResult.Result == null)
{
// create the row, set version to zero
var newRowValue = new InfraVersion(stage, infraName);
newRowValue.Version = 0;
// add to db
await AddInfraVersionAsync(newRowValue);
// set to result so the newly added row will get returned
retrievedResult.Result = newRowValue;
}
return((InfraVersion)retrievedResult.Result);
}
private async Task AddInfraVersionAsync(InfraVersion version)
{
var insertOperation = TableOperation.InsertOrMerge(version);
await _table.ExecuteAsync(insertOperation);
}