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Asked: 2026-05-26T08:21:29+00:00

How is the best way to handle messages through a server to multiple devices?

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How is the best way to handle messages through a server to multiple devices?

Scenario

It will be an app capable of running on multiple mobile platforms including online in a web browser. A type of instant messenger. The messages will be directed through a server to another mobile device.

The back-end structure/concept must be basically the same as WhatsApp. Sending messages to one-another like that.

What I think

  1. Have the device send it to the web-server.
  2. Server saves it in a queue table in a database.
  3. When receiver device checks for new message (every second) it finds it in the queue.
  4. Remove it from queue and put message in history table.

Final

What would be a efficient way to structure/handle such an app to get similar results as WhatsApp?

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1 Answer

  1. Editorial Team

    You may want to push messages instead of pull them every second. This has two big advantages:

    1. Less bandwidth usage.
    2. You can skip the database part if the sender and the receiver are both connected when the message is sent. Only queue the messages in the database if the receiver isn’t connected.

    So it’s a huge performance boost if you use push.

    If you have a web app using JavaScript you can use a JSON stream or, for new browsers, JavaScript WebSokets.

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