Set a local storage session token JavaScript

app.js

// Form response processor set session token
app.formResponseProcessor = function(formId,requestPayload,responsePayload){
  var functionToCall = false;
  // If account creation was successful, try to immediately log the user in
  if(formId == 'accountCreate'){
    // Take the phone and password, and use it to log the user in
    var newPayload = {
      'phone' : requestPayload.phone,
      'password' : requestPayload.password
    };

    app.client.request(undefined,'api/tokens','POST',undefined,newPayload,function(newStatusCode,newResponsePayload){
      // Display an error on the form if needed
      if(newStatusCode !== 200){

        // Set the formError field with the error text
        document.querySelector("#"+formId+" .formError").innerHTML = 'Sorry, an error has occured. Please try again.';

        // Show (unhide) the form error field on the form
        document.querySelector("#"+formId+" .formError").style.display = 'block';

      } else {
        // If successful, set the token and redirect the user
        app.setSessionToken(newResponsePayload);
        window.location = '/checks/all';
      }
    });
  }
  // If login was successful, set the token in localstorage and redirect the user
  if(formId == 'sessionCreate'){
    app.setSessionToken(responsePayload);
    window.location = '/checks/all';
  }

  // If forms saved successfully and they have success messages, show them
  var formsWithSuccessMessages = ['accountEdit1', 'accountEdit2','checksEdit1'];
  if(formsWithSuccessMessages.indexOf(formId) > -1){
    document.querySelector("#"+formId+" .formSuccess").style.display = 'block';
  }

  // If the user just deleted their account, redirect them to the account-delete page
  if(formId == 'accountEdit3'){
    app.logUserOut(false);
    window.location = '/account/deleted';
  }

  // If the user just created a new check successfully, redirect back to the dashboard
  if(formId == 'checksCreate'){
    window.location = '/checks/all';
  }

  // If the user just deleted a check, redirect them to the dashboard
  if(formId == 'checksEdit2'){
    window.location = '/checks/all';
  }

};

index.js

// Set the session token in the app.config object as well as localstorage

app.setSessionToken = function(token){
  app.config.sessionToken = token;
  var tokenString = JSON.stringify(token);
  localStorage.setItem('token',tokenString);
  if(typeof(token) == 'object'){
    app.setLoggedInClass(true);
  } else {
    app.setLoggedInClass(false);
  }
};