Proxy Pattern: Creating a Logging Writable Stream
Explore how to apply the Proxy pattern to Writable streams in Node.js. Learn to create a proxy that intercepts write() method calls, logs the data chunks, and preserves the original stream behavior without alteration.
We'll cover the following...
We'll cover the following...
To see the Proxy pattern applied to a real example, we’ll now build an object that acts as a proxy to a Writable stream, which intercepts all the calls to the write() method and logs a message every time this happens. We’ll use the Proxy object to implement our proxy. Let’s write our code in a logging-writable.js ...