Last modified: April 17, 2025

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JSON Data File Flow

🗂 Files on My Server

• userData.json: JSON file used to store user information.

🖥 My Page Server

• Acts as the intermediary between the user's browser and the JSON file.

Server-Side File Operations

• fs.readFile(...): Reads user data from userData.json.
• fs.writeFile(...): Writes user data to userData.json.

🌐 My Site in a User's Browser

• Interface where users interact with the application.

Browser-Server Communication

• GET Request:

  • Endpoint used to load users from the server.
  • Triggers a read from userData.json.

• POST Request (with JSON body):

  • Used to save user info.
  • Sends data to server, which writes to userData.json.