如何在Reactjs中使用session

Question

I am new in Reactjs and I am working on "login" module, I integrated the login module successfully, and Now I want if the user enters the correct email and password then the email should be in session, And if the user is not logged in he can't see any further page, How can I do this? Here is my current code

const data = {
  email: email,
  password: password
};
axios.post("https://xxxxxxxxxxx/Checklogin/", data).then(function (response) {
  if (response.data.msg == "wrong") {
    $("#errormsg4").show("slow").delay(5000).fadeOut();
  } else {
    //"response.data.email"should be in session
  }
});

Answer 1

To store the email in a session in React, as you specified, you can use the sessionStorage API. The sessionStorage API allows you to store key-value pairs in the user's browser. The data is stored in the session, which means it will only be available for the current tab and will be deleted when the user closes the tab.

Here is an example of how you can use the sessionStorage API to store the email in a session:

const data = {
  email: email,
  password: password
};
axios.post("https://xxxxxxxxxxx/Checklogin/", data).then(function (response) {
  if (response.data.msg == "wrong") {
    $("#errormsg4").show("slow").delay(5000).fadeOut();
  } else {
    // Store the email in the session
    sessionStorage.setItem("email", response.data.email);
  }
});

To check if the user is logged in, you can use the sessionStorage.getItem() method to retrieve the email from the session. If the getItem() method returns a non-null value, it means that the user is logged in and has an email stored in the session.

Here is an example of how you can use the sessionStorage.getItem() method to check if the user is logged in:

const email = sessionStorage.getItem("email");
if (email) {
  // The user is logged in
} else {
  // The user is not logged in
}

I hope this helps!