OkHttpClient client = new OkHttpClient();
MediaType mediaType = MediaType.parse("multipart/form-data; boundary=---011000010111000001101001");
RequestBody body = RequestBody.create(mediaType, "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"username\"\r\n\r\nadmin\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"password\"\r\n\r\ndemo\r\n-----011000010111000001101001--");
Request request = new Request.Builder()
.url("http://demo.testpress.in/api/v2.2/auth-token/")
.addHeader("content-type", "multipart/form-data; boundary=---011000010111000001101001")
.addHeader("authorization", "JWT eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VybmFtZSI6MTM5NTYsInVzZXJfaWQiOjEzOTU2LCJlbWFpbCI6ImRlcy5wcm8ubWFkaGFuQGhvdG1haWwuY29tIiwiZXhwIjoxNDY0MzQwMzg1fQ.TElNLpQE8KERVe7Q-vjNk9aU-9prOfzBb43srB9WmC0")
.addHeader("cache-control", "no-cache")
.addHeader("postman-token", "987488b1-1b5f-dd8b-95fc-fea8d276b2ae")
Response response = client.newCall(request).execute();