HubSpot Oauth2 demo

app/controllers/oauth_controller.rb

@@ -0,0 +1,9 @@
+class OauthController < ApplicationController
+  def authorize
+    redirect_to "https://app.hubspot.com/oauth/authorize?client_id=#{ENV['HUBSPOT_CLIENT_ID']}&redirect_uri=#{ENV['HUBSPOT_REDIRECT_URI']}&scope=#{ENV['HUBSPOT_SCOPES']}", allow_other_host: true
+  end
+
+  def callback
+    @resp = Hubspot.create_token!(params[:code])
+  end
+end

app/services/hubspot.rb

@@ -0,0 +1,30 @@
+class Hubspot
+  TOKEN_BASE_URL = 'https://api.hubapi.com/oauth/v1/token'.freeze
+
+  def self.create_token!(code)
+    body = {
+      grant_type: 'authorization_code',
+      code: code
+    }.merge(auth_params)
+
+    HTTParty.post(TOKEN_BASE_URL, body: body)
+  end
+
+  def self.refresh_token!(user)
+    body = {
+      grant_type: 'refresh_token',
+      refresh_token: user.try(:hubspot_refresh_token)
+    }.merge(auth_params)
+
+    resp = HTTParty.post(TOKEN_BASE_URL, body: body)
+    user.update(hubspot_access_token: resp['access_token'])
+  end
+
+  def self.auth_params
+    {
+      client_id: ENV['HUBSPOT_CLIENT_ID'],
+      client_secret: ENV['HUBSPOT_CLIENT_SECRET'],
+      redirect_uri: ENV['HUBSPOT_REDIRECT_URI']
+    }
+  end
+end

app/views/dashboard/index.html.erb

@@ -1 +1,3 @@
 <%= render partial: "shared/heading", locals: { title: 'Dashboard', description: '' } %>
+
+<%= link_to 'OAuth HubSpot', '/oauth/authorize', class: 'p-5 rounded-md bg-primary-500 text-white' %>

app/views/oauth/callback.html.erb

@@ -0,0 +1 @@
+<%= @resp %>

config/routes.rb

@@ -31,4 +31,8 @@
     # convenience helper
     get 'admin', to: 'admin/dashboard#index'
   end
+
+  # oauth routes
+  get 'oauth/authorize', to: 'oauth#authorize'
+  get 'oauth/callback', to: 'oauth#callback'
 end