Apptomate Validator Utils

A comprehensive validation utility package for Dart/Flutter applications that provides various input validation methods.

Features

• Password validation (strength, length, special characters)
• Email validation
• Phone number validation
• Zip code validation
• Date validation (MM-YYYY, MM-DD-YYYY formats)
• Common field validation
• Password confirmation validation
• Date range validation
• And more...

Installation

Add the following to your pubspec.yaml file:

dependencies:
  apptomate_validator_utils: ^0.0.2

Then run:

flutter pub get

Usage

Import the package in your Dart file:

import 'package:apptomate_utility_validations/apptomate_validator_utils.dart';

Available Validators

1. Password Validation

String? error = Validator.validatePassword("password123");
if (error != null) {
  // Show error message
}

2. Email Validation

String? error = Validator.emailValidator("test@example.com");
if (error != null) {
  // Show error message
}

3. Phone Number Validation

String? error = Validator.validatePhoneNumber("1234567890");
if (error != null) {
  // Show error message
}

4. Zip Code Validation

String? error = Validator.validateZipCode("12345");
if (error != null) {
  // Show error message
}

5. Date Validation

// MM-YYYY format
String? error = Validator.mmYYYYValidation("12-2023");

// MM-DD-YYYY format
String? error = Validator.dobValidation("12-31-2023");

6. Date Range Validation

String? error = Validator.toDateValidation(
  fromDate: "01-01-2023", 
  toDate: "12-31-2023"
);
if (error != null) {
  // Show error message
}

7. Confirm Password Validation

String? error = Validator.validateConfirmPassword(
  "password123", 
  "password123"
);
if (error != null) {
  // Show error message
}

8. Common Field Validation

String? error = Validator.commonValidation(
  "Some value", 
  "Field is required"
);
if (error != null) {
  // Show error message
}

Validation Rules

Password

• Minimum 8 characters
• At least one uppercase letter
• At least one lowercase letter
• At least one special character (!@#$&*~)
• No spaces allowed

Email

• Standard email format validation

Phone Number

• Exactly 10 digits

Zip Code

• 5 or 6 digits

Dates

• MM-YYYY format must be valid month/year
• MM-DD-YYYY format must be valid date
• Date ranges must be logical (to date after from date)

Dependencies

This package uses:

• intl for date formatting and parsing