uppy/packages/@uppy/companion
Mikael Finstad ad4050b51e
Send token using websocket (#6248)
instead of window.opener - it is more robust

inspired by #4110
closes #6246
closes #4107

Biggest caveat: In cases where window.opener is null (Dropbox), the auth
window will not be auto closed (I don't know how to fix that). It will
show the user a message "Authentication successful. You may now close
this page."
https://github.com/transloadit/uppy/pull/6248/changes#diff-ef5b69c4ab5b83168eaba6f57047bb07c53e3a426f375b42fcb32d79c746872cR22

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Prakash <qxprakash@gmail.com>
2026-05-09 15:03:04 +08:00
..
__mocks__ companion: port to TypeScript (#6179) 2026-05-04 20:50:43 +08:00
infra/kube meta: run Prettier on existing files (#4713) 2023-09-29 11:11:28 +02:00
output companion: smaller heroku deployment (#2845) 2021-04-01 12:30:26 +02:00
src Send token using websocket (#6248) 2026-05-09 15:03:04 +08:00
test Send token using websocket (#6248) 2026-05-09 15:03:04 +08:00
.gitignore companion: port to TypeScript (#6179) 2026-05-04 20:50:43 +08:00
.npmignore add .npmignore files to ignore .gitignore when packing (#3380) 2021-12-21 14:39:54 +01:00
ARCHITECTURE.md meta: enable prettier for markdown (#5133) 2024-05-02 11:35:55 +02:00
CHANGELOG.md [ci] release (#6170) 2026-03-25 20:59:50 +05:30
env_example @uppy/companion: add max filename length env var (#5763) 2025-05-29 10:21:19 +02:00
heroku.yml Fix Companion deploys (#3388) 2022-01-10 11:03:49 +01:00
KUBERNETES.md @uppy/companion: add COMPANION_TUS_DEFERRED_UPLOAD_LENGTH (#5561) 2025-01-13 10:40:40 +01:00
LICENSE refactor: rename service-dog -> companion 2018-07-22 18:53:57 +01:00
Makefile refactor: rename service-dog -> companion 2018-07-22 18:53:57 +01:00
nodemon.json companion: port to TypeScript (#6179) 2026-05-04 20:50:43 +08:00
package.json companion: port to TypeScript (#6179) 2026-05-04 20:50:43 +08:00
README.md meta: enable prettier for markdown (#5133) 2024-05-02 11:35:55 +02:00
start-dev companion: port to TypeScript (#6179) 2026-05-04 20:50:43 +08:00
tsconfig.build.json companion: port to TypeScript (#6179) 2026-05-04 20:50:43 +08:00
tsconfig.json companion: port to TypeScript (#6179) 2026-05-04 20:50:43 +08:00
tsconfig.shared.json companion: port to TypeScript (#6179) 2026-05-04 20:50:43 +08:00
vitest.config.ts Refactor Companion to ESM (#5803) 2025-07-29 19:07:48 +02:00

Companion

Uppy logo — a superman puppy in a pink suit

Build Status

Companion is a server integration for Uppy file uploader.

It handles the server-to-server communication between your server and file storage providers such as Google Drive, Dropbox, Instagram, etc. Companion is not a target to upload files to. For this, use a https://tus.io server (if you want resumable) or your existing Apache/Nginx server (if you dont). See here for full documentation

Install

npm install @uppy/companion

If you dont have a Node.js project with a package.json you might want to install/run Companion globally like so: [sudo] npm install -g @uppy/companion@1.x (best check the actual latest version, and use that, so (re)installs are reproducible, and upgrades intentional).

Usage

companion may either be used as pluggable express app, which you plug to your existing server, or it may also be run as a standalone server:

Plug to an existing server

import express from 'express'
import bodyParser from 'body-parser'
import session from 'express-session'
import companion from '@uppy/companion'

const app = express()
app.use(bodyParser.json())
app.use(session({ secret: 'some secrety secret' }))
// ...
// be sure to place this anywhere after app.use(bodyParser.json()) and app.use(session({...})
const options = {
  providerOptions: {
    drive: {
      key: 'GOOGLE_KEY',
      secret: 'GOOGLE_SECRET',
    },
  },
  server: {
    host: 'localhost:3020',
    protocol: 'http',
  },
  filePath: '/path/to/folder/',
}

const { app: companionApp } = companion.app(options)
app.use(companionApp)

To enable companion socket for realtime feed to the client while upload is going on, you call the socket method like so.

// ...
const server = app.listen(PORT)

companion.socket(server)

Run as standalone server

Please make sure that the required env variables are set before runnning/using companion as a standalone server. See.

$ companion

If you cloned the repo from GitHub and want to run it as a standalone server, you may also run the following command from within its directory

npm start

Deploy to heroku

Companion can also be deployed to Heroku

mkdir uppy-companion && cd uppy-companion

git init

echo 'export COMPANION_PORT=$PORT' > .profile
echo 'node_modules' > .gitignore
echo '{
  "name": "uppy-companion",
  "version": "1.0.0",
  "scripts": {
    "start": "companion"
  },
  "dependencies": {
    "@uppy/companion": "latest"
  }
}' > package.json

npm i

git add . && git commit -am 'first commit'

heroku create

git push heroku master

Make sure you set the required environment variables.

See full documentation