curl --request POST \
  --url https://sandbox.tight.com/v6/files/upload \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: multipart/form-data' \
  --form file='@example-file' \
  --form 'data={
  "description": "Q1 2024 invoice",
  "date": "2024-01-15",
  "entityId": "btxn_28868401",
  "notes": "Received from vendor on 2024-01-15",
  "amount": 15000,
  "customData": {
    "internal_key": "some_internal_key",
    "some_other_field": 23434
  }
}'

import requests

url = "https://sandbox.tight.com/v6/files/upload"

files = { "file": ("example-file", open("example-file", "rb")) }
payload = { "data": "{
  \"description\": \"Q1 2024 invoice\",
  \"date\": \"2024-01-15\",
  \"entityId\": \"btxn_28868401\",
  \"notes\": \"Received from vendor on 2024-01-15\",
  \"amount\": 15000,
  \"customData\": {
    \"internal_key\": \"some_internal_key\",
    \"some_other_field\": 23434
  }
}" }
headers = {"Authorization": "Bearer <token>"}

response = requests.post(url, data=payload, files=files, headers=headers)

print(response.text)

const form = new FormData();
form.append('file', '<string>');
form.append('data', '{
  "description": "Q1 2024 invoice",
  "date": "2024-01-15",
  "entityId": "btxn_28868401",
  "notes": "Received from vendor on 2024-01-15",
  "amount": 15000,
  "customData": {
    "internal_key": "some_internal_key",
    "some_other_field": 23434
  }
}');

const options = {method: 'POST', headers: {Authorization: 'Bearer <token>'}};

options.body = form;

fetch('https://sandbox.tight.com/v6/files/upload', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://sandbox.tight.com/v6/files/upload",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"data\"\r\n\r\n{\r\n  \"description\": \"Q1 2024 invoice\",\r\n  \"date\": \"2024-01-15\",\r\n  \"entityId\": \"btxn_28868401\",\r\n  \"notes\": \"Received from vendor on 2024-01-15\",\r\n  \"amount\": 15000,\r\n  \"customData\": {\r\n    \"internal_key\": \"some_internal_key\",\r\n    \"some_other_field\": 23434\r\n  }\r\n}\r\n-----011000010111000001101001--",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: multipart/form-data"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://sandbox.tight.com/v6/files/upload"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"data\"\r\n\r\n{\r\n  \"description\": \"Q1 2024 invoice\",\r\n  \"date\": \"2024-01-15\",\r\n  \"entityId\": \"btxn_28868401\",\r\n  \"notes\": \"Received from vendor on 2024-01-15\",\r\n  \"amount\": 15000,\r\n  \"customData\": {\r\n    \"internal_key\": \"some_internal_key\",\r\n    \"some_other_field\": 23434\r\n  }\r\n}\r\n-----011000010111000001101001--")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://sandbox.tight.com/v6/files/upload")
  .header("Authorization", "Bearer <token>")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"data\"\r\n\r\n{\r\n  \"description\": \"Q1 2024 invoice\",\r\n  \"date\": \"2024-01-15\",\r\n  \"entityId\": \"btxn_28868401\",\r\n  \"notes\": \"Received from vendor on 2024-01-15\",\r\n  \"amount\": 15000,\r\n  \"customData\": {\r\n    \"internal_key\": \"some_internal_key\",\r\n    \"some_other_field\": 23434\r\n  }\r\n}\r\n-----011000010111000001101001--")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://sandbox.tight.com/v6/files/upload")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"data\"\r\n\r\n{\r\n  \"description\": \"Q1 2024 invoice\",\r\n  \"date\": \"2024-01-15\",\r\n  \"entityId\": \"btxn_28868401\",\r\n  \"notes\": \"Received from vendor on 2024-01-15\",\r\n  \"amount\": 15000,\r\n  \"customData\": {\r\n    \"internal_key\": \"some_internal_key\",\r\n    \"some_other_field\": 23434\r\n  }\r\n}\r\n-----011000010111000001101001--"

response = http.request(request)
puts response.read_body

{
  "data": {
    "id": "fil_28868401",
    "entity": {
      "id": "btxn_28868401"
    },
    "description": "Q1 2024 invoice",
    "notes": "Received from vendor on 2024-01-15",
    "url": "https://cdn.sandbox.tight.com/files/fil_28868401.pdf",
    "date": "2024-01-15",
    "amount": 15000,
    "status": "ACTIVE",
    "customData": {
      "internal_key": "some_internal_key",
      "some_other_field": 23434
    }
  }
}

{
  "result": "FAILURE",
  "error": [
    {
      "type": "REQUIRED",
      "message": "Amount is required",
      "param": "amount"
    }
  ]
}

{
  "result": "FAILURE",
  "error": [
    {
      "type": "INVALID_TOKEN",
      "message": "Invalid access token"
    }
  ]
}

{
  "result": "FAILURE",
  "error": [
    {
      "type": "FORBIDDEN",
      "message": "Expired access token"
    }
  ]
}

{
  "result": "FAILURE",
  "error": [
    {
      "type": "BAD_REQUEST",
      "message": "Resource not found"
    }
  ]
}

{
  "result": "FAILURE",
  "error": [
    {
      "type": "UNKNOWN_ERROR",
      "message": "Something went wrong. Please try again later."
    }
  ]
}