curl --request POST \
  --url https://app.teable.ai/api/table/%7BtableId%7D/record/%7BrecordId%7D/%7BfieldId%7D/uploadAttachment \
  --header 'Authorization: Bearer REPLACE_BEARER_TOKEN' \
  --header 'content-type: multipart/form-data' \
  --form file=string \
  --form fileUrl=string

const url = 'https://app.teable.ai/api/table/%7BtableId%7D/record/%7BrecordId%7D/%7BfieldId%7D/uploadAttachment';
const form = new FormData();
form.append('file', 'string');
form.append('fileUrl', 'string');

const options = {method: 'POST', headers: {Authorization: 'Bearer REPLACE_BEARER_TOKEN'}};

options.body = form;

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}

const http = require('https');

const options = {
  method: 'POST',
  hostname: 'app.teable.ai',
  port: null,
  path: '/api/table/%7BtableId%7D/record/%7BrecordId%7D/%7BfieldId%7D/uploadAttachment',
  headers: {
    Authorization: 'Bearer REPLACE_BEARER_TOKEN'
  }
};

const req = http.request(options, function (res) {
  const chunks = [];

  res.on('data', function (chunk) {
    chunks.push(chunk);
  });

  res.on('end', function () {
    const body = Buffer.concat(chunks);
    console.log(body.toString());
  });
});

req.write('-----011000010111000001101001\r\nContent-Disposition: form-data; name="file"\r\n\r\nstring\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name="fileUrl"\r\n\r\nstring\r\n-----011000010111000001101001--\r\n');
req.end();

import http.client

conn = http.client.HTTPSConnection("app.teable.ai")

payload = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"\r\n\r\nstring\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"fileUrl\"\r\n\r\nstring\r\n-----011000010111000001101001--\r\n"

headers = { 'Authorization': "Bearer REPLACE_BEARER_TOKEN" }

conn.request("POST", "/api/table/%7BtableId%7D/record/%7BrecordId%7D/%7BfieldId%7D/uploadAttachment", payload, headers)

res = conn.getresponse()
data = res.read()

print(data.decode("utf-8"))

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://app.teable.ai/api/table/{tableId}/record/{recordId}/{fieldId}/uploadAttachment",
  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=\"fileUrl\"\r\n\r\n<string>\r\n-----011000010111000001101001--",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: multipart/form-data; boundary=---011000010111000001101001"
  ],
]);

$response = curl_exec($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://app.teable.ai/api/table/{tableId}/record/{recordId}/{fieldId}/uploadAttachment"

	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=\"fileUrl\"\r\n\r\n<string>\r\n-----011000010111000001101001--")

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

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "multipart/form-data; boundary=---011000010111000001101001")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://app.teable.ai/api/table/{tableId}/record/{recordId}/{fieldId}/uploadAttachment")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "multipart/form-data; boundary=---011000010111000001101001")
  .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=\"fileUrl\"\r\n\r\n<string>\r\n-----011000010111000001101001--")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.teable.ai/api/table/{tableId}/record/{recordId}/{fieldId}/uploadAttachment")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'multipart/form-data; boundary=---011000010111000001101001'
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=\"fileUrl\"\r\n\r\n<string>\r\n-----011000010111000001101001--"

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

{
  "id": "<string>",
  "fields": {},
  "name": "<string>",
  "autoNumber": 123,
  "createdTime": "<string>",
  "lastModifiedTime": "<string>",
  "createdBy": "<string>",
  "lastModifiedBy": "<string>",
  "permissions": {},
  "undeletable": true
}