batista / vue-slack-oauth2

🔌 Handling Google sign-in and sign-out for Vue.js applications

vue-slack-oauth2

Handling Slack sign-in and sign-out for Vue.js applications. Very much inspired by vue-google-oauth2

Installation

Installation with npm

npm install @batista/vue-slack-oauth2

Installation with yarn

yarn add @batista/vue-slack-oauth2

Initialization

//src/main.js
import SlackAuth from 'vue-slack-oauth2'
const slackAuthOption = {
  clientId: 'CLIENT_ID',
  scope: 'profile email',
  prompt: 'select_account'
}
Vue.use(SlackAuth, slackAuthOption)

Options

Property	Type	Required	Description
clientId	String	Required.	The app's client ID, found and created in the Slack API.
scope	String	Optional.	Default value is profile email.

Methods

Property	Description	Type
SlackAuth	return of	Object
isAuthorized	Whether or not you have auth	Boolean
isInit	Whether or not api init	Boolean
isLoaded	Whether or not api init. will be deprecated.	Function
signIn	function for sign-in	Function
getAuthCode	function for getting authCode	Function
signOut	function for sign-out	Function

Usages

Getting authorization code

The authCode that is being returned is the one-time code that you can send to your backend server, so that the server can exchange for its own access_token and refresh_token.

The access_token and refresh_token can be saved in backend storage for reuse and refresh. In this way, you can avoid exposing your api key or secret key whenever you need to use various APIs.

const authCode = await this.$slackAuth.getAuthCode()
const response = await this.$http.post('http://your-backend-server-api-to-use-authcode', { code: authCode, redirect_uri: 'postmessage' })

Sign-in: Directly get back the access_token and id_token

const slackUser = await this.$slackAuth.signIn()
// slackUser.getId() : Get the user's unique ID string.
// slackUser.getBasicProfile() : Get the user's basic profile information.
// slackUser.getAuthResponse() : Get the response object from the user's auth session. access_token and so on
this.isSignIn = this.$slackAuth.isAuthorized

refer to slack signIn reference

Sign-out

Handling Slack sign-out

const response = await this.$slackAuth.signOut()

Extra - Directly get access_token and refresh_token on Server-side

To get access_token and refresh_token in server side, the data for redirect_uri should be postmessage. postmessage is magic value for redirect_uri to get credentials without actual redirect uri.

Curl

curl -d "client_id=YOUR_CLIENT_ID&\
  client_secret=YOUR_CLIENT_SECRET&\
  redirect_uri=postmessage&\
  grant_type=authorization_code&\
  code=YOUR_AUTH_CODE" https://slack.com/api/openid.connect.token

Sample Code

• Golang Sample Code
• Python Sample Code

Additional Help

• sample login page HTML file.
• Slack API Auth

FAQ

The failure of initialization happens

You can check the brower console to check errors which occur during initialization. The most of errors are from inproper setting of slack oauth2 credentials setting in your Slack App configurations. After changing the settings, you have to do hard refresh to clear your caches.

Type Errors

Follow the documentation provided here to add $slackAuth as a property for preventing lint errors.

Acknowledgements

This Package was greatly inspired by @guruahn work on his vue-google-oauth2 package, many thanks for his work. 🙏