send a multipart data via API throws error

[erandakodagoda18]

Hi,

I'm getting a server 500 error for an endpoint which used to upload json file as multipart form data.
Implementation

function importFileToCreateCustomer(url, json) {
    cy.fixture('/resources/json/' + json, 'binary')
        .then(binary => {
            const blob = Cypress.Blob.binaryStringToBlob(binary)
            const fileName = json;
            const file = new File([blob], fileName);
            const formData = new FormData();
            formData.set('file', file);
            let fileUploadToUrl = url

            cy.request({
                method: 'POST',
                url: fileUploadToUrl,
                headers: {},
                body:formData
            }).then(response => {
                expect(response.status).to.eq(200)
                cy.log(response)
            })
        })
}

JSON File Used to upload
{ "Export" : { "customer" : { "key" : "TEST_AUTOMATION", "name" : "TEST_AUTOMATION", "email" : "[email protected]" } } }

Error I get with 500 Internal server error.

Unexpected token (START_ARRAY), expected START_OBJECT: Current token not START_OBJECT (needed to unwrap root name 'Export'), but START_ARRAY at [Source: (FileInputStream); line: 1, column: 1]