//Signup
const signupForm = document.querySelector("#signup-form");
signupForm.addEventListener("submit", e => {
  e.preventDefault();
  // feel free to change the object keys to match your data model

  db.ref("users/").push({
    chosenPlan: signupForm["plan"].value,
    investment_capital: signupForm["invest-capital"].value,
    roi_model: signupForm["ROI-modl"].value,
    investment_funding_medium: signupForm["depost-id"].value,
    firstname: signupForm["first-name"].value,
    othernames: signupForm["other-names"].value,
    country: signupForm["country"].value,
    city: signupForm["city"].value,
    email: signupForm["email"].value,
    phone: signupForm["phone"].value,
    password: signupForm["password"].value,
    retypepassword: signupForm["retypepassword"].value,
    referreremail: signupForm["referreremail"].value
  });


  
  
  //Get Users Info
  const email = signupForm["email"].value;
  const password = signupForm["password"].value;

  // sign up the user
  auth
    .createUserWithEmailAndPassword(email, password)
    .then(cred => {
      //Hide Alert
      setTimeout(() => {
        document.getElementById("tx").innerHTML =
          " Your registration was successful please proceed to the login page.";
      }, 3000);
      window.location.replace("/admin/admin-html/Dashboard.html");
    })
    .then(() => {
      const uid = cred.user.uid; // you have uid
      cred.user.getIdToken().then(
        token => {
          // do anything with token
          console.log(token);
        },
        err => {
          console.log(err.message);
        }
      );
    });

  //reset form
  signupForm.reset();
});

auth.onAuthStateChanged(user => {
  if (user) {
    console.log("user logged in: ", user.email);
  } else {
    console.log("user logged out");
  }
});

db.ref("users/").on("value", function (snapshot) {
  console.log(snapshot.val());
});

I'm new to firebase and would like to read data of a currently logged in user.

i've tried but I end up getting the whole data from the collection.