Defining a global variable in Cypress that can be used in all test files without creating a new one everytime

[mariamaslam]

I am very desperately looking for a solution to define a global variable and access it everything in all my test files. This is my commands.js. Here i am generating a random mobile number using faker.js. I am doing APIs automated testing but the APIs are executed in a sequence which means there should be one mobile number and one user ID that should be used throughout the test execution.

import { faker } from '@faker-js/faker';
Cypress.Commands.add('generateAndSetMobileNumber', () => {
  // Check if the mobile number is already set in the Cypress environment
  if (!Cypress.env('mobileNumber')) {
    const mobileNumber = faker.datatype.number({ min: 5700000000, max: 5899999999 });
    Cypress.env('mobileNumber', mobileNumber.toString());
  }
});

Cypress.Commands.add('createUser', () => {
  cy.generateRandomMobileNumber().then((mobileNumber) => {

    return cy.api({
      failOnStatusCode: false,
      method: 'POST',
      url: '/products/users/',
      body: {
        "countryCode": "971",
        "mobileNo": mobileNumber,
        "viewId": "createView",
        "agentCode": "",
        "language": "EN",
      }
    }).then((response) => {
      expect(response.status).to.eq(201);
      Cypress.env('prospectId', response.body.userId);
    });
  });
});

Now these commands are defined here and are working perfectly fine but when I use it in my test classes everything generates a new mobile number and new userID whereas I want one UserID and mobileNumber that can be used throughout the execution.

This is my test file

describe("Generating OTP", () => {
before(() => {
 cy.createUser() => {
     
    });
  it("Verify user is able to generate OTP by entering their mobile number", () => {
               UserId = Cypress.env('UserId');
               mobileNumber = Cypress.env('mobileNumber');


    cy.api({
      failOnStatusCode: false,
      method: 'POST',
      url: 'products/otp',
      body: {
        "action": "generate",
        "prospectId": prospectId,
        "countryCode": "971",
        "mobileNo": mobileNumber,
      }
    }).then((response) => {
      // Assert that the OTP was generated successfully
      expect(response.status).to.eq(200);
      expect(prospectId).to.have.length(5);
      // Assert that the OTP is valid
      expect(response.body.verified).to.eq(true);
    });
  });
});

I have tried multiple options as follow, but nothing seems to be working for me:

1. cypress-localstorage-commands plugin
2. setLocalStorage

I look forward to prompt support