codeBelt

// https://angularfirebase.com/lessons/firestore-security-rules-guide/

// https://medium.com/@jek.bao.choo/my-firestore-security-rules-learning-notes-14316400f160

Scope Rules to Specific Operations Rules can be enforced on various read/write operations that occur in a clientside app. We can scope rules to each of the follow read operations.

allow read - Applies to both lists and documents. allow get - When reading a single document. allow list - When querying a collection.

roipeker

/// copyright 2020, roipeker

class FormValidations {
  static String email(String val) {
    val = val.trim();
    if (val.isEmpty) return 'Email cant be empty';
    if (val.length <= 4) return 'Email is too short';
    if (!val.isEmail) return 'Invalid email';
    return null;
  }