feat(provider): add FACEIT provider (#1469)

src/providers/faceit.js

@@ -0,0 +1,25 @@
+export default (options) => {
+  return {
+    id: 'faceit',
+    name: 'FACEIT',
+    type: 'oauth',
+    version: '2.0',
+    params: { grant_type: 'authorization_code' },
+    headers: {
+      Authorization: `Basic ${Buffer.from(`${options.clientId}:${options.clientSecret}`).toString('base64')}`
+    },
+    accessTokenUrl: 'https://api.faceit.com/auth/v1/oauth/token',
+    authorizationUrl: 'https://accounts.faceit.com/accounts?redirect_popup=true&response_type=code',
+    profileUrl: 'https://api.faceit.com/auth/v1/resources/userinfo',
+    profile (profile) {
+      const { guid: id, nickname: name, email, picture: image } = profile
+      return {
+        id,
+        name,
+        email,
+        image
+      }
+    },
+    ...options
+  }
+}

src/providers/index.js

@@ -12,6 +12,7 @@ import Discord from './discord'
 import Email from './email'
 import EVEOnline from './eveonline'
 import Facebook from './facebook'
+import FACEIT from './faceit'
 import Foursquare from './foursquare'
 import FusionAuth from './fusionauth'
 import GitHub from './github'
@@ -52,6 +53,7 @@ export default {
   Email,
   EVEOnline,
   Facebook,
+  FACEIT,
   Foursquare,
   FusionAuth,
   GitHub,

www/docs/providers/faceit.md

@@ -0,0 +1,30 @@
+---
+id: faceit
+title: FACEIT
+---
+
+## Documentation
+
+https://cdn.faceit.com/third_party/docs/FACEIT_Connect_3.0.pdf
+
+## Configuration
+
+https://developers.faceit.com/apps
+
+Grant type: `Authorization Code`
+
+Scopes to have basic infos (email, nickname, guid and avatar) : `openid`, `email`, `profile`
+
+## Example
+
+```js
+import Providers from `next-auth/providers`
+...
+providers: [
+  Providers.FACEIT({
+    clientId: process.env.FACEIT_CLIENT_ID,
+    clientSecret: process.env.FACEIT_CLIENT_SECRET
+  })
+]
+...
+```