db_utils.py 文件源码

def getItem(jsonData, table):
  if (type(jsonData) == str):
    data = json.loads(jsonData)
  else:
    data = jsonData

  projection_expression = data.get("ProjectionExpression")
  key = data.get("Key")

  if key is None:
    message = "Unable to get item. Missing Key"
    logger.error(message)
    return None

  if projection_expression is not None:
    response = table.get_item(Key=key,ProjectionExpression=projection_expression)
  else:
    response = table.get_item(Key=key)
  return response