email_auth 1.1.1

A Flutter package to verify emails using OTP based method, to make sure we get real world data.

example/lib/main.dart

import 'package:email_auth/email_auth.dart';
import 'package:example/auth.config.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';

/// Importing the configuration file to pass them to the EmailAuth instance
/// You can have a custom path and a variable name,
/// but the Map should be in the pattern {server : "", serverKey : ""}
// import 'package:email_auth_example/auth.config.dart';

void main() {
  const MyApp app = MyApp();
  runApp(kDebugMode ? const MyApp() : app);
}

class MyApp extends StatefulWidget {
  const MyApp({super.key});

  @override
  // ignore: library_private_types_in_public_api
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  /// The boolean to handle the dynamic operations
  bool submitValid = false;

  /// Text editing controllers to get the value from text fields
  final TextEditingController _emailcontroller = TextEditingController();
  final TextEditingController _otpcontroller = TextEditingController();

  // Declare the object
  late EmailAuth emailAuth;

  @override
  void initState() {
    super.initState();
    // Initialize the package
    emailAuth = EmailAuth(
      sessionName: "Sample session",
    );

    /// Configuring the remote server
    emailAuth.config(remoteServerConfiguration);
  }

  /// a void function to verify if the Data provided is true
  /// Convert it into a boolean function to match your needs.
  void verify() {
    if (kDebugMode) {
      print(
          "OTP validation results >> ${emailAuth.validateOtp(recipientMail: _emailcontroller.value.text, userOtp: _otpcontroller.value.text)}");
    }
  }

  /// a void funtion to send the OTP to the user
  /// Can also be converted into a Boolean function and render accordingly for providers
  void sendOtp() async {
    bool result = await emailAuth.sendOtp(recipientMail: _emailcontroller.value.text, otpLength: 5);
    if (result) {
      setState(() {
        submitValid = true;
      });
    } else if (kDebugMode) {
      print("Error processing OTP requests, check server for logs");
    }
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Email Auth sample verification'),
        ),
        body: Container(
            margin: const EdgeInsets.all(5),
            child: Center(
              child: Card(
                elevation: 5,
                margin: const EdgeInsets.all(15),
                child: Padding(
                  padding: const EdgeInsets.all(15),
                  child: Column(
                    children: <Widget>[
                      const Text(
                        "Please enter a valid Email ID",
                        style: TextStyle(
                          fontWeight: FontWeight.bold,
                          fontSize: 20,
                        ),
                      ),
                      TextField(
                        controller: _emailcontroller,
                        style: const TextStyle(fontSize: 18),
                      ),
                      Card(
                        margin: const EdgeInsets.only(top: 20),
                        elevation: 6,
                        child: Container(
                          height: 50,
                          width: 200,
                          color: Colors.green[400],
                          child: GestureDetector(
                            onTap: sendOtp,
                            child: const Center(
                              child: Text(
                                "Request OTP",
                                style: TextStyle(
                                  fontWeight: FontWeight.bold,
                                  color: Colors.white,
                                  fontSize: 20,
                                ),
                              ),
                            ),
                          ),
                        ),
                      ),

                      /// A dynamically rendering text field
                      (submitValid)
                          ? TextField(
                              controller: _otpcontroller,
                            )
                          : Container(height: 1),
                      (submitValid)
                          ? Container(
                              margin: const EdgeInsets.only(top: 20),
                              height: 50,
                              width: 200,
                              color: Colors.green[400],
                              child: GestureDetector(
                                onTap: verify,
                                child: const Center(
                                  child: Text(
                                    "Verify",
                                    style: TextStyle(
                                      fontWeight: FontWeight.bold,
                                      color: Colors.white,
                                      fontSize: 20,
                                    ),
                                  ),
                                ),
                              ),
                            )
                          : const SizedBox(height: 1),
                    ],
                  ),
                ),
              ),
            )),
      ),
    );
  }
}