How to Access a MySQL Database from a Chrome Extension?

Database Connectivity for Chrome Extensions

In the development of a Chrome extension accessible only to employees within a company, there arises the need to access a shared MySQL database for read-only operations. However, since Chrome extensions operate primarily on the client side, the question arises about the simplest method to connect to the database from within a JavaScript environment.

Solution: Intermediary Web App

To facilitate communication between the Chrome extension and the database, it is necessary to create an intermediary web application. This web app will serve as an API endpoint through which the extension can issue AJAX calls. The web app, in turn, will query the database and return the requested data.

The flow of data and interactions will be:

Chrome Extension → Web App API → MySQL Database

Chrome AJAX API

To make AJAX calls from the Chrome extension to the web app's API, it is necessary to utilize the Chrome AJAX API. This API allows for asynchronous communication between the extension and the web app, enabling the extension to retrieve data from the database without having to refresh the page.

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