Slack OAuth2 Strategy for Überauth
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README.md

Überauth Slack

Slack OAuth2 strategy for Überauth.

Installation

  1. Setup your application at Slack API.

  2. Add :ueberauth_slack to your list of dependencies in mix.exs:

    def deps do
      [{:ueberauth_slack, "~> 0.5"}]
    end
  3. Add the strategy to your applications:

    def application do
      [applications: [:ueberauth_slack]]
    end
  4. Add Slack to your Überauth configuration:

    config :ueberauth, Ueberauth,
      providers: [
        slack: {Ueberauth.Strategy.Slack, []}
      ]

    You can optionally restrict authentication by providing your team ID. Find your Slack team ID here. Note that this is NOT your team's Slack domain name!

    config :ueberauth, Ueberauth,
      providers: [
        slack: {Ueberauth.Strategy.Slack, [team: "0ABCDEF"]}
      ]
  5. Update your provider configuration:

    config :ueberauth, Ueberauth.Strategy.Slack.OAuth,
      client_id: System.get_env("SLACK_CLIENT_ID"),
      client_secret: System.get_env("SLACK_CLIENT_SECRET")
  6. Include the Überauth plug in your controller:

    defmodule MyApp.AuthController do
      use MyApp.Web, :controller
      plug Ueberauth
      ...
    end
  7. Create the request and callback routes if you haven't already:

    scope "/auth", MyApp do
      pipe_through :browser
    
      get "/:provider", AuthController, :request
      get "/:provider/callback", AuthController, :callback
    end
  8. Your controller needs to implement callbacks to deal with Ueberauth.Auth and Ueberauth.Failure responses.

For an example implementation see the Überauth Example application.

Calling

Depending on the configured url you can initiate the request through:

/auth/slack

Or with options:

/auth/slack?scope=users:read

By default the requested scope is "users:read". Scope can be configured either explicitly as a scope query value on the request path or in your configuration:

config :ueberauth, Ueberauth,
  providers: [
    slack: {Ueberauth.Strategy.Slack, [default_scope: "users:read,users:write"]}
  ]

License

Please see LICENSE for licensing details.