curl --location --request POST 'https://api.zixflow.com/api/v1/campaign/email/upload' \
--header 'Authorization: Bearer 56616641ee123b80a36b99fedc2bfa4f0d7f63072d97ddb1578c7a5aa970e7edde6618c7f750beb921aee3eebc9cc48899ee992fa4eb95a663d0e0b2eaa35b73f3b2344c' \
--form 'file=@"<path-to-file>"'

var axios = require('axios');
var FormData = require('form-data');
var fs = require('fs');
var data = new FormData();
data.append('file', fs.createReadStream('/home/sahil/Downloads/welcome-screen.png'));

var config = {
  method: 'post',
  url: 'https://api.zixflow.com/api/v1/campaign/email/upload',
  headers: { 
    'Authorization': 'Bearer 56616641ee123b80a36b99fedc2bfa4f0d7f63072d97ddb1578c7a5aa970e7edde6618c7f750beb921aee3eebc9cc48899ee992fa4eb95a663d0e0b2eaa35b73f3b2344c', 
    ...data.getHeaders()
  },
  data : data
};

axios(config)
.then(function (response) {
  console.log(JSON.stringify(response.data));
})
.catch(function (error) {
  console.log(error);
});

import requests

url = "https://api.zixflow.com/api/v1/campaign/email/upload"

payload={}
files=[
  ('file',('welcome-screen.png',open('/home/sahil/Downloads/welcome-screen.png','rb'),'image/png'))
]
headers = {
  'Authorization': 'Bearer 56616641ee123b80a36b99fedc2bfa4f0d7f63072d97ddb1578c7a5aa970e7edde6618c7f750beb921aee3eebc9cc48899ee992fa4eb95a663d0e0b2eaa35b73f3b2344c'
}

response = requests.request("POST", url, headers=headers, data=payload, files=files)

print(response.text)

OkHttpClient client = new OkHttpClient().newBuilder()
  .build();
MediaType mediaType = MediaType.parse("text/plain");
RequestBody body = new MultipartBody.Builder().setType(MultipartBody.FORM)
  .addFormDataPart("file","welcome-screen.png",
    RequestBody.create(MediaType.parse("application/octet-stream"),
    new File("/home/sahil/Downloads/welcome-screen.png")))
  .build();
Request request = new Request.Builder()
  .url("https://api.zixflow.com/api/v1/campaign/email/upload")
  .method("POST", body)
  .addHeader("Authorization", "Bearer 56616641ee123b80a36b99fedc2bfa4f0d7f63072d97ddb1578c7a5aa970e7edde6618c7f750beb921aee3eebc9cc48899ee992fa4eb95a663d0e0b2eaa35b73f3b2344c")
  .build();
Response response = client.newCall(request).execute();

var headers = {
  'Authorization': 'Bearer 56616641ee123b80a36b99fedc2bfa4f0d7f63072d97ddb1578c7a5aa970e7edde6618c7f750beb921aee3eebc9cc48899ee992fa4eb95a663d0e0b2eaa35b73f3b2344c'
};
var request = http.MultipartRequest('POST', Uri.parse('https://api.zixflow.com/api/v1/campaign/email/upload'));
request.files.add(await http.MultipartFile.fromPath('file', '/home/sahil/Downloads/welcome-screen.png'));
request.headers.addAll(headers);

http.StreamedResponse response = await request.send();

if (response.statusCode == 200) {
  print(await response.stream.bytesToString());
}
else {
  print(response.reasonPhrase);
}

{
  "status": true,
  "data": {
    "filename": "file-welcome-screen-1672054415115.png",
    "size": 7343,
    "dateadded": "2022-12-26T11:33:36.2633971Z",
    "expirationdate": null,
    "fileid": "63a98690b0ec6c81460f4f1d",
    "contenttype": "image/png",
    "mediumscreenshotpath": "93b7fbda-4306-4ab7-bb80-e4375750ea76/mediumscreenshots/file-welcome-screen-1672054415115.png",
    "thumbnailpath": "93b7fbda-4306-4ab7-bb80-e4375750ea76/thumbnails/file-welcome-screen-1672054415115.png"
  },
  "message": "Successfully uploaded file"
}

{
  "status": false,
  "message": "file size exceeded"
}

{
  "status": false,
  "message": "No token provided"
}