foobar

scratch.ts

export const calculateParticipantsNumberOnParticipantCreate = functions.database.ref("/users/{userId}/zgloszenia/{zgloszenieId}")
    .onCreate(event2 => {
      const {userId, zgloszenieId} = event2.params;

      return event2.data.adminRef.root.child(`/users/${userId}/wyniki`).once('value')
          .then(eventSnapshot => {
            const {rokMatury, przedmioty} = eventSnapshot.val();

            return event2.data.adminRef.root.child(`/users/${userId}/zgloszenia/${zgloszenieId}`).update({
              liczbaPunktow: 12345
            })
          });
    });