firestore.rules

rules_version = '2';

service cloud.firestore {
  match /databases/{database}/documents {

    // This rule allows anyone with your Firestore database reference to view, edit,
    // and delete all data in your Firestore database. It is useful for getting
    // started, but it is configured to expire after 30 days because it
    // leaves your app open to attackers. At that time, all client
    // requests to your Firestore database will be denied.
    //
    // Make sure to write security rules for your app before that time, or else
    // all client requests to your Firestore database will be denied until you Update
    // your rules
    match /{document=**} {
      allow read, write: if isAuthenticated();
      
      allow create: if isAuthenticated() && requestMatchesUID();
      allow update: if isAuthenticated() && resourceMatchesUID() && requestMatchesUID();
      allow delete: if isAuthenticated() && resourceMatchesUID(); 
    }
    
    function isAuthenticated() {
    
    	return request.auth != null;
    }
    
    function requestMatchesUID() {
        return request.auth.uid == request.resource.data.uid;
    }

    function resourceMatchesUID() {
        return request.auth.uid == resource.data.uid;
    }
  }
}