intercept-once.js

Cypress.Commands.add('interceptOnce', (method, path, alias, status) => {
  cy.intercept({
    method,
    path,
    times: 1,
  }).as(alias);

  if (status) {
    return cy.wrap(() =>
      cy
        .wait('@' + alias)
        .its('response.statusCode')
        .should('eq', status),
    );
  }

  return cy.wrap(() => cy.wait('@' + alias));
});

// Usage
cy.interceptOnce('GET', 'some-url/', 'myAlias', 200).then(wait => {
  // Do some work trigerring request to some-url
  wait()
})