在 firebase 云函数 flutter 中发送计划 email

Question

I have a system built in Flutter. When a user subscribes I want to

• Generate a PDF file ( invoice ) in flutter using Pdf creation library
• send (monthly) an email with that PDF file

1- My question is how to trigger the cloud schedule function

• Date store in cloud firestore that I need to for generating the pdf file
• generate the PDF file will be in Flutter
• sending scheduled emails will be in the cloud function

Answer 1

You do not need to trigger them they will run automatically on given time period like cron

exports.scheduledFunction = functions.pubsub.schedule('every 5 minutes').onRun((context) => {
  console.log('This will be run every 5 minutes!');
  return null;
});

https://firebase.google.com/docs/functions/schedule-functions