Can't get a POST API call to work from Cypress

[anufrancis]

Is there anything wrong with this script? I am new to cypress and trying to make a POST API call from my spec file. The same API works outside using POSTMAN, but using Cypress I get 415 not supported error at cy.request.

cy.request({
method: 'POST',
url: 'https://test-apipostcall/rest/ng/query',
auth: {
username: '[email protected]',
password: '#######',
},
body: {
"cpId": 709916,
"aql": "select Specimen.label, Specimen.availableQty, Specimen.specimenPosition.containerName,Specimen.activityStatus where Specimen.id=10884195"
},
}).then(res => {
expect(rows[0]).to.eq('fulldisspecimen');
});

[elTencha23]

Usually the username and password go inside the body

cy.request({
  method: 'POST',
  url: '/login_with_form', // baseUrl is prepend to URL
  form: true, // indicates the body should be form urlencoded and sets Content-Type: application/x-www-form-urlencoded headers
  body: {
    username: 'jane.lane',
    password: 'password123',
  },
})