Sign up methods with AWS Amplify Auth

SignUpAWSAmplify.js

// Sign up user with AWS Amplify Auth
async signUp() {
  const { username, password, email, phoneNumber } = this.state
  // rename variable to conform with Amplify Auth field phone attribute
  const phone_number = phoneNumber
  await Auth.signUp({
    username,
    password,
    attributes: { email, phone_number }
  })
  .then(() => {
    console.log('sign up successful!')
    Alert.alert('Enter the confirmation code you received.')
  })
  .catch(err => {
    if (! err.message) {
      console.log('Error when signing up: ', err)
      Alert.alert('Error when signing up: ', err)
    } else {
      console.log('Error when signing up: ', err.message)
      Alert.alert('Error when signing up: ', err.message)
    }
  })
}

// Confirm users and redirect them to the SignIn page
async confirmSignUp() {
  const { username, authCode } = this.state
  await Auth.confirmSignUp(username, authCode)
  .then(() => {
    this.props.navigation.navigate('SignIn')
    console.log('Confirm sign up successful')
  })
  .catch(err => {
    if (! err.message) {
      console.log('Error when entering confirmation code: ', err)
      Alert.alert('Error when entering confirmation code: ', err)
    } else {
      console.log('Error when entering confirmation code: ', err.message)
      Alert.alert('Error when entering confirmation code: ', err.message)
    }
  })
}

// Resend code if not received already
async resendSignUp() {
  const { username } = this.state
  await Auth.resendSignUp(username)
  .then(() => console.log('Confirmation code resent successfully'))
  .catch(err => {
    if (! err.message) {
      console.log('Error requesting new confirmation code: ', err)
      Alert.alert('Error requesting new confirmation code: ', err)
    } else {
      console.log('Error requesting new confirmation code: ', err.message)
      Alert.alert('Error requesting new confirmation code: ', err.message)
    }
  })
}