Thumbs-up function

Kind (Required)

• Proposal / Discussion

Overview (Required)

• We are showing thumbs-up instead of a session survey.
• We have set up the necessary Firestore rules for it.
• Please let us know if you have any missing rules or security issues.

rules_version = '2';
service cloud.firestore {
  match /databases/{database}/documents {
    match /confsched/2020 {
...
      match /sessions/{sessionId} {
        match /{allSubcollections=**} {
          allow create
        }
        // Allow to increment only the 'shards' field and only by 1.
        match /thumbsup_counters/{counterId} {
          allow get;
          allow write: if request.resource.data.keys() == ["shards"]
                         && (resource == null || request.resource.data.shards ==
                         resource.data.shards + 1);
        }
      }
    }
  }
}

• I think that the user can press the button any number of times. (Cannot be canceled.) Like medium crap.
• Regarding the creation of Firestore documents for sessions and counters, we are thinking of creating a Firestore document if there is no document from the application.

https://www.figma.com/file/4r9becvhDy3GfXaXex8E8d/App?node-id=21%3A289

now	design

Links

• https://firebase.google.com/docs/firestore/solutions/counters

[mkeeda]

OK 🙆 I’ll fix the code as soon as possible.

[takahirom]

I talked with designer 👍 0 = white 1 or more(all people) = blue.