Post multipart/form-data with byte[] of file


I’ve just started working with Gatling and have some troubles during creating scenario.
In out application by FE we are sending csv file to backend. FE parse it to byte[] and send POST with as “Content-type”, “multipart/form-data”

We are testing this scenario with RestAssured in the following way (is working):

return given()
        .header(AUTHORIZATION, String.format("Bearer %s", authAccessToken))