Slack Invite Automation

A tiny web application to invite a user into your Slack team.

Settings

You can set variables for your own purpose in config.js or environment variables.

config.js

Fill out config.js as your infomation.

• community: your community or team name to display on join page.
• slackUrl : your slack team url (ex.: socketio.slack.com)
• slacktoken : Your access token for Slack. (see Issue token)
• inviteToken: An optional security measure - if it is set, then that token will be required to get invited.
• recaptchaSiteKey: An optional security measure - if it is set, and recaptchaSecretKey is set, then a captcha will be required to get invited.
• recaptchaSecretKey: An optional security measure - if it is set, and recaptchaSiteKey is set, then a captcha will be required to get invited.
• locale: Application language (currently cs, de, en, es, fr, it, ja, ko, nl, pl, pt, pt-BR, tr, zh-CN and zh-TW available).
• subpath: Sub-path in URL. For example, if /example is set, it's served in /example, not /. Default is /.

Environment Variables

You can set environment variables directly or in .env file. If you want to use a .env file, create a file in the root called .env with the following key/value pairs. (.env files are added to the .gitignore.)

• COMMUNITY_NAME : Your community or team name to display on join page.
• SLACK_URL : Your Slack team url (ex.: socketio.slack.com)
• SLACK_TOKEN : Your access token for Slack. (see Issue token)
• INVITE_TOKEN: An optional security measure - if it is set, then that token will be required to get invited.
• RECAPTCHA_SITE: An optional security measure - used to enable reCAPTCHA.
• RECAPTCHA_SECRET: An optional security measure - used to enable reCAPTCHA.
• LOCALE: Application language (currently cs, de, en, es, fr, it, ja, ko, nl, pl, pt, pt-BR, tr, zh-CN and zh-TW available).
• SUBPATH: Sub-path in URL. For example, if /example is set, it's served in /example, not /. Default is /.

Sample

COMMUNITY_NAME=HospitalRun
SLACK_URL=hospitalrun.slack.com
SLACK_TOKEN=ffsdf-5411524512154-16875416847864648976-45641654654654654-444334f43b34566f
LOCALE=en

You can test your token via curl:

 curl -X POST 'https://YOUR-SLACK-TEAM.slack.com/api/users.admin.invite' \
 --data 'email=EMAIL&token=TOKEN&set_active=true' \
 --compressed

Development

Node.js is required.

$ git clone https://github.com/hospitalrun/slack-invite-automation.git
$ cd slack-invite-automation
$ npm install
$ npm start

You can access http://localhost:3000 on your web browser.

Issue token

You should generate the token in admin user, not owner. If you generate the token in owner user, a missing_scope error may occur.

There are two ways to issue the access token.

Legacy tokens

1. Visit https://api.slack.com/custom-integrations/legacy-tokens.

2. Click Create token.

   

OAuth tokens

1. Visit https://api.slack.com/apps and Create New App.

   

2. Click "Permissions".

   

3. In "OAuth & Permissions" page, select admin scope under "Permission Scopes" menu and save changes.

   

4. Click "Install App to Workspace".

   

5. Visit https://slack.com/oauth/authorize?&client_id=CLIENT_ID&team=TEAM_ID&install_redirect=install-on-team&scope=admin+client in your browser and authorize your app.

   • This form requires the client permission. Otherwise, you can see {"ok":false,"error":"missing_scope","needed":"client","provided":"admin"} error.
   • Your TEAM_ID is the subdomain for your slack team, e.g. myteam.slack.com - your TEAM_ID is myteam.
   • Your CLIENT_ID found in "Basic Information" section for your App.
   • You will be shown a Installed App Settings > OAuth Tokens for Your Team screen.
   • You can test auto invites with curl by providing the OAuth Access Token.

   curl -X POST 'https://myteam.slack.com/api/users.admin.invite' \
   --data 'email=test@email.com&token=OAuthAccessToken&set_active=true' \
   --compressed

   

reCAPTCHA

Register a new site in Google reCAPTHCA as reCAPTCHA v2 type.

Set "Site key" as recaptchaSiteKey or RECAPTCHA_SITE, and "Secret key" as recaptchaSecretKey or RECAPTCHA_SECRET.