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# Upload an attachment for a client

POST https://app.brightmove.com/ATS/api/v1/clients/{guid}/attachments
Content-Type: application/json

Uploads a file attachment for this client.

File content is base64-encoded in the JSON request body (`contentBase64`) rather than
`multipart/form-data`, keeping this a uniformly JSON API.


Reference: https://docs.brightmove.com/public/clients-departments/profile/add-attachment-1

## Authentication

- `Authorization` header (bearer token, required) — BrightMove OAuth2 client_credentials - use the client_id/client_secret from User > API Keys (or an admin-managed client).

## Request

### Path parameters

- `guid` (string, required) — Stable public identifier of the client

### Body (application/json)

This endpoint expects a ClientAttachmentCreateRequest.

- `filename` (string, required) — File name, including extension.
- `contentBase64` (string, required) — Base64-encoded file content.
- `description` (string, optional) — Description of the attachment. Defaults to the file name when omitted.

## Response

### 201

Attachment uploaded

## Examples

**Request**

```json
{
  "filename": "msa_2026.pdf",
  "contentBase64": "JVBERi0xLjQKJcOkw7zDtsO..."
}
```

**Response**

```json
{}
```

**SDK Code**

```python
import requests

url = "https://app.brightmove.com/ATS/api/v1/clients/f585821d-3135-2545-e040-a8c00f01678a/attachments"

payload = {
    "filename": "msa_2026.pdf",
    "contentBase64": "JVBERi0xLjQKJcOkw7zDtsO..."
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript
const url = 'https://app.brightmove.com/ATS/api/v1/clients/f585821d-3135-2545-e040-a8c00f01678a/attachments';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"filename":"msa_2026.pdf","contentBase64":"JVBERi0xLjQKJcOkw7zDtsO..."}'
};

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

```go
package main

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

func main() {

	url := "https://app.brightmove.com/ATS/api/v1/clients/f585821d-3135-2545-e040-a8c00f01678a/attachments"

	payload := strings.NewReader("{\n  \"filename\": \"msa_2026.pdf\",\n  \"contentBase64\": \"JVBERi0xLjQKJcOkw7zDtsO...\"\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://app.brightmove.com/ATS/api/v1/clients/f585821d-3135-2545-e040-a8c00f01678a/attachments")

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"] = 'application/json'
request.body = "{\n  \"filename\": \"msa_2026.pdf\",\n  \"contentBase64\": \"JVBERi0xLjQKJcOkw7zDtsO...\"\n}"

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

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://app.brightmove.com/ATS/api/v1/clients/f585821d-3135-2545-e040-a8c00f01678a/attachments")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"filename\": \"msa_2026.pdf\",\n  \"contentBase64\": \"JVBERi0xLjQKJcOkw7zDtsO...\"\n}")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://app.brightmove.com/ATS/api/v1/clients/f585821d-3135-2545-e040-a8c00f01678a/attachments', [
  'body' => '{
  "filename": "msa_2026.pdf",
  "contentBase64": "JVBERi0xLjQKJcOkw7zDtsO..."
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://app.brightmove.com/ATS/api/v1/clients/f585821d-3135-2545-e040-a8c00f01678a/attachments");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"filename\": \"msa_2026.pdf\",\n  \"contentBase64\": \"JVBERi0xLjQKJcOkw7zDtsO...\"\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [
  "filename": "msa_2026.pdf",
  "contentBase64": "JVBERi0xLjQKJcOkw7zDtsO..."
] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://app.brightmove.com/ATS/api/v1/clients/f585821d-3135-2545-e040-a8c00f01678a/attachments")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```