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An approach for working with legacy API and new API

Introduction When we first start working with a third-party API, the version we started with may become obsolete after a few years since the legacy API may no longer be supported by the original creators or contains security problems when we need to migrate to newer versions. There could be a variety of other reasons to upgrade, such as the expense of maintaining the legacy API being greater and inefficient than the latest version, as well...

Deal with the change of field data type of PynamoDB, an ORM of DynamoDB

PynamoDB, with a Python interface, is a great ORM for AWS DynamoDB. DynamoDB is a NoSQL database with scalability and security and it has awesome API and SDKs. PynamoDB wraps the underneath APIs of DynamoDB and gives a beautiful pythonic way to use DynamoDB. In real-world our DB fields are not constant. It can change with the requirements update of our project. The hard part is when you have to maintain the old and new features. For example, a field data type can change from String to...