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Consider the following database in JSON format stored in firebase -

"root":
{
    "survey":
    {
        "1":
        {
            "survey_question":"Who is a better player?",
            "option1":"Ronaldo",
            "option2":"Messi",
            "time_posted":7854123265,
            "visibility":1
        },
        "2":
        {
            "survey_question":"Who is a better singer?",
            "option1":"Ed Sheeran",
            "option2":"Chris Martin",
            "time_posted":9865321245,
            "visibility":1
        }
    }
}

I can write a Firebase cloud function which is triggered when a new survey is created.
But what should I do to update the visibility to 0 after 24 hours from time_posted?

Edit: I checked out the solution for this question and followed the instructions-

  • Wrote the function, in index.js file, which I want to be triggered and deployed it successfully.
  • Created a cron job at cron-job.org with the below address of the function-
    https://us-central1-<PROJECT-ID>.cloudfunctions.net/<FUNCTION-NAME>?key=<PROJECT-KEY>

The cron job execution failed with the following error message-
Error: Forbidden Your client does not have permission to get URL /<FUNCTION-NAME>?key=<PROJECT-KEY> from this server.

Chirag Mittal
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1 Answers1

1

It might be easier to do a time diff using time_posted to check for Date.now() - time_posted <= 24 * 60 * 60 * 1000 (ensure that it is within one day of being posted).

Or, on a child_added event, you could do a setTimeout that calls back after 24 hours and updates the visibility flag, but that seems kind of messy.

awei
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