> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.chaser.sh/api-reference/chaser-core-api/sessions/llms.txt.
> For full documentation content, see https://docs.chaser.sh/api-reference/chaser-core-api/sessions/llms-full.txt.

# Upload and enable a browser extension for a browser session

POST https://api.chaser.sh/v1/sessions/{id}/browser/extensions
Content-Type: multipart/form-data

Upload one browser extension archive into the persistent browser workspace of an existing browser session. The daemon unpacks the archive into a reserved extension directory, updates the enabled extension manifest, and can restart the browser process to apply it.

Reference: https://docs.chaser.sh/api-reference/chaser-core-api/sessions/upload-session-browser-extension

## OpenAPI Specification

```yaml
openapi: 3.1.0
info:
  title: chaser-api-generated
  version: 1.0.0
paths:
  /v1/sessions/{id}/browser/extensions:
    post:
      operationId: upload-session-browser-extension
      summary: Upload and enable a browser extension for a browser session
      description: >-
        Upload one browser extension archive into the persistent browser
        workspace of an existing browser session. The daemon unpacks the archive
        into a reserved extension directory, updates the enabled extension
        manifest, and can restart the browser process to apply it.
      tags:
        - subpackage_sessions
      parameters:
        - name: id
          in: path
          description: Session ID
          required: true
          schema:
            type: string
        - name: Authorization
          in: header
          description: Bearer authentication
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Browser extension uploaded
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SessionBrowserExtensionUploadResponse'
        '400':
          description: Invalid request or non-browser session
          content:
            application/json:
              schema:
                description: Any type
        '404':
          description: Session not found
          content:
            application/json:
              schema:
                description: Any type
      requestBody:
        description: Multipart form with `bundle` and optional `restart_browser` fields
        content:
          multipart/form-data:
            schema:
              type: object
              properties:
                bundle:
                  type: string
                  format: binary
                  description: Extension archive contents.
                restart_browser:
                  type: boolean
                  description: >-
                    Restart the browser process after the extension is
                    activated.
              required:
                - bundle
servers:
  - url: https://api.chaser.sh
  - url: http://localhost:8000
components:
  schemas:
    SessionBrowserExtensionUploadResponse:
      type: object
      properties:
        extension_id:
          type: string
        file_count:
          type: integer
        path:
          type: string
        restarted:
          type: boolean
      required:
        - extension_id
        - file_count
        - path
        - restarted
      description: Response body for browser extension upload.
      title: SessionBrowserExtensionUploadResponse
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer

```

## SDK Code Examples

```python
import requests

url = "https://api.chaser.sh/v1/sessions/id/browser/extensions"

files = { "bundle": "open('UEsDBBQACAgIAK1a1VIAAAAAAAAAAAAAAAAJABwAZXh0ZW5zaW9uLmNyeFBLBQYAAAAAAQABADYAAABFAAAAAAA=', 'rb')" }
payload = { "restart_browser": "true" }
headers = {"Authorization": "Bearer <token>"}

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

print(response.json())
```

```javascript
const url = 'https://api.chaser.sh/v1/sessions/id/browser/extensions';
const form = new FormData();
form.append('bundle', 'UEsDBBQACAgIAK1a1VIAAAAAAAAAAAAAAAAJABwAZXh0ZW5zaW9uLmNyeFBLBQYAAAAAAQABADYAAABFAAAAAAA=');
form.append('restart_browser', 'true');

const options = {method: 'POST', headers: {Authorization: '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);
}
```

```go
package main

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

func main() {

	url := "https://api.chaser.sh/v1/sessions/id/browser/extensions"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"bundle\"; filename=\"UEsDBBQACAgIAK1a1VIAAAAAAAAAAAAAAAAJABwAZXh0ZW5zaW9uLmNyeFBLBQYAAAAAAQABADYAAABFAAAAAAA=\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"restart_browser\"\r\n\r\ntrue\r\n-----011000010111000001101001--\r\n")

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

}
```

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

url = URI("https://api.chaser.sh/v1/sessions/id/browser/extensions")

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=\"bundle\"; filename=\"UEsDBBQACAgIAK1a1VIAAAAAAAAAAAAAAAAJABwAZXh0ZW5zaW9uLmNyeFBLBQYAAAAAAQABADYAAABFAAAAAAA=\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"restart_browser\"\r\n\r\ntrue\r\n-----011000010111000001101001--\r\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://api.chaser.sh/v1/sessions/id/browser/extensions")
  .header("Authorization", "Bearer <token>")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"bundle\"; filename=\"UEsDBBQACAgIAK1a1VIAAAAAAAAAAAAAAAAJABwAZXh0ZW5zaW9uLmNyeFBLBQYAAAAAAQABADYAAABFAAAAAAA=\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"restart_browser\"\r\n\r\ntrue\r\n-----011000010111000001101001--\r\n")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.chaser.sh/v1/sessions/id/browser/extensions', [
  'multipart' => [
    [
        'name' => 'bundle',
        'filename' => 'UEsDBBQACAgIAK1a1VIAAAAAAAAAAAAAAAAJABwAZXh0ZW5zaW9uLmNyeFBLBQYAAAAAAQABADYAAABFAAAAAAA=',
        'contents' => null
    ],
    [
        'name' => 'restart_browser',
        'contents' => 'true'
    ]
  ]
  'headers' => [
    'Authorization' => 'Bearer <token>',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.chaser.sh/v1/sessions/id/browser/extensions");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddParameter("undefined", "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"bundle\"; filename=\"UEsDBBQACAgIAK1a1VIAAAAAAAAAAAAAAAAJABwAZXh0ZW5zaW9uLmNyeFBLBQYAAAAAAQABADYAAABFAAAAAAA=\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"restart_browser\"\r\n\r\ntrue\r\n-----011000010111000001101001--\r\n", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["Authorization": "Bearer <token>"]
let parameters = [
  [
    "name": "bundle",
    "fileName": "UEsDBBQACAgIAK1a1VIAAAAAAAAAAAAAAAAJABwAZXh0ZW5zaW9uLmNyeFBLBQYAAAAAAQABADYAAABFAAAAAAA="
  ],
  [
    "name": "restart_browser",
    "value": "true"
  ]
]

let boundary = "---011000010111000001101001"

var body = ""
var error: NSError? = nil
for param in parameters {
  let paramName = param["name"]!
  body += "--\(boundary)\r\n"
  body += "Content-Disposition:form-data; name=\"\(paramName)\""
  if let filename = param["fileName"] {
    let contentType = param["content-type"]!
    let fileContent = String(contentsOfFile: filename, encoding: String.Encoding.utf8)
    if (error != nil) {
      print(error as Any)
    }
    body += "; filename=\"\(filename)\"\r\n"
    body += "Content-Type: \(contentType)\r\n\r\n"
    body += fileContent
  } else if let paramValue = param["value"] {
    body += "\r\n\r\n\(paramValue)"
  }
}

let request = NSMutableURLRequest(url: NSURL(string: "https://api.chaser.sh/v1/sessions/id/browser/extensions")! 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()
```