Firebase 云函数在 00 处触发

Question

Hei guys. I was looking for a way to trigger my function every hour at 00 minute. The way it works now it depends by the time the function has been uploaded at, so if I upload it at 13:45, it will first trigger at 14:45. What should I do to make it trigger at 14:00?

Answer 1

You should use the (new) feature that allows scheduling Cloud Functions by using functions.pubsub.schedule().onRun() .

In your case you would use a Unix Crontab configuration as follows:

exports.scheduledFunctionCrontab = functions.pubsub.schedule('0 * * * *')
  .onRun((context) => {
  console.log('This will be run every hour at hh:00');
  return null;
});

See a crontab configurator here: https://crontab.guru