Trigger webhook when Google Sheet edited

Question

I made a google sheet for sharing todo list with co-workers.

My hope is when that sheet is modified, send message to slack channel.

Even if tried to find api related with this, I failed to suitable one.

Is there a appropriate API or webhook?

Solution

There's Drive API's Push Notifications which lets you watch for changes to resources. You can also use Apps Scripts' onEdit trigger which acts more like a real-time checker.

function onEdit(e){
  // Set a comment on the edited cell to indicate when it was changed.
  var range = e.range;
  range.setNote('Last modified: ' + new Date());
}

This forum might also offer additional insight.