The process of logging in with Parse.User encounters a glitch

Question

The process of logging in with Parse.User encounters a glitch

I developed a user login feature:

export const userLogin = (email, password) => (dispatch) => {
    console.log(email, password);
  dispatch({ type: actionTypes.AUTH_LOGIN_STARTED });
  console.log("after dispatch");
  Parse.User.logIn(email, password, {
    success(user) {
        console.log("in success");
      dispatch({
        type: actionTypes.AUTH_LOGIN_SUCCESS,
        user: user.toJSON(),
      });
     window.location.replace('/');
    },
    error(user, error) {
        console.log("in error")
      console.log({ error });
      // The login failed. Check error to see why.
      dispatch({
        type: actionTypes.AUTH_LOGIN_ERROR,
        error,
      });
    },
  });
};

However, it seems to get stuck after the Parse.User.logIn function and does not trigger either the success or error callback. I've verified that the email and password are correct.

What could be causing this issue?

javascript parse-platform parse-server

Answer 1

Answer №1

Parse.User.Login does not have a third parameter available. It is recommended to utilize promise functions:

Parse.User.logIn(email, password)
  .then((user) => {
    console.log("in success");
    dispatch({
      type: actionTypes.AUTH_LOGIN_SUCCESS,
      user: user.toJSON(),
    });
    window.location.replace('/');
  })
  .error((user, error) => {
    console.log("in error")
    console.log({ error });
    // The login failed. Check error to see why.
    dispatch({
      type: actionTypes.AUTH_LOGIN_ERROR,
      error,
    });
  });

Alternatively, you can opt for the modern await syntax (which may provide cleaner code):

export const userLogin = (email, password) => async (dispatch) => {
  console.log(email, password);
  dispatch({ type: actionTypes.AUTH_LOGIN_STARTED });
  console.log("after dispatch");

  try {
    const user = await Parse.User.logIn(email, password);
    console.log("in success");
    dispatch({
      type: actionTypes.AUTH_LOGIN_SUCCESS,
      user: user.toJSON(),
    });
    window.location.replace('/');
  } catch (error) {
    console.log("in error")
    console.log({ error });
    // The login failed. Check error to see why.
    dispatch({
      type: actionTypes.AUTH_LOGIN_ERROR,
      error,
    });
  }
};

Answer 2

Parse.User.Login does not have a third parameter available. It is recommended to utilize promise functions:

Parse.User.logIn(email, password)
  .then((user) => {
    console.log("in success");
    dispatch({
      type: actionTypes.AUTH_LOGIN_SUCCESS,
      user: user.toJSON(),
    });
    window.location.replace('/');
  })
  .error((user, error) => {
    console.log("in error")
    console.log({ error });
    // The login failed. Check error to see why.
    dispatch({
      type: actionTypes.AUTH_LOGIN_ERROR,
      error,
    });
  });

Alternatively, you can opt for the modern await syntax (which may provide cleaner code):

export const userLogin = (email, password) => async (dispatch) => {
  console.log(email, password);
  dispatch({ type: actionTypes.AUTH_LOGIN_STARTED });
  console.log("after dispatch");

  try {
    const user = await Parse.User.logIn(email, password);
    console.log("in success");
    dispatch({
      type: actionTypes.AUTH_LOGIN_SUCCESS,
      user: user.toJSON(),
    });
    window.location.replace('/');
  } catch (error) {
    console.log("in error")
    console.log({ error });
    // The login failed. Check error to see why.
    dispatch({
      type: actionTypes.AUTH_LOGIN_ERROR,
      error,
    });
  }
};

The process of logging in with Parse.User encounters a glitch

Answer №1

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