rhodler

const login = (context, event) => new Promise((resolve, reject)=>{
  const { email, password } = event;

  if(email !== 'john.doe@gmail.com' || password !== 'azerty'){
    return reject({ error: 'Le mot de passe ou l\'email est incorrect !' })
  }

  return resolve({ email, password });

});

rhodler

const promiseMachine = Machine({
  id: 'promise',
  initial: 'pending',
  states: {
    pending: {
      on: {
        RESOLVE: 'resolved',
        REJECT: 'rejected'
      }
    },