Gist 1a03bf15beee9f72953b414669e44576

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Gist 1a03bf15beee9f72953b414669e44576

✓ Published0🌍 Public

Last edited Jul 26, 2016

Created on Jul 13, 2016

This example demonstrates a Node.js utility that asynchronously fetches the HTTP status code for a given URL. It first reads a text file using the `fs.readFile` method to extract a domain or URL from its first line, then passes that address to the `request` library’s `getStatusCodeAsync` function, which returns the server’s response code. The visualization shows how file I/O and network requests are chained through callbacks, highlighting the flow of data from local storage to remote servers without any graphical rendering.

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