Exercise: Logging with Middleware
Explore how to apply the Middleware design pattern to create a flexible logging system in Node.js. Learn to chain middleware functions for tasks like serialization and file saving, enhancing your understanding of behavioral design patterns.
We'll cover the following...
We'll cover the following...
Problem statement
Rewrite the logging component you implemented for “Exercise: Logging with Stretegy” and “Exercise: Logging with Template”, but this time use the Middleware pattern to postprocess each log message allowing different middlewares to customize how to handle the messages and how to output them. We could, for example, add a serialize() middleware to convert the log messages to a string representation ready to be sent over the wire or saved somewhere. Then, we could add a saveToFile() ...