feat(provider): add Salesforce provider

src/providers/index.js

@@ -24,6 +24,7 @@ import Mixer from './mixer'
 import Netlify from './netlify'
 import Okta from './okta'
 import Reddit from './reddit'
+import Salesforce from './salesforce'
 import Slack from './slack'
 import Spotify from './spotify'
 import Strava from './strava'
@@ -59,6 +60,7 @@ export default {
   Netlify,
   Okta,
   Reddit,
+  Salesforce,
   Slack,
   Spotify,
   Strava,

src/providers/salesforce.js

@@ -0,0 +1,21 @@
+export default (options) => {
+  return {
+    id: 'salesforce',
+    name: 'Salesforce',
+    type: 'oauth',
+    version: '2.0',
+    params: { display: 'page', grant_type: 'authorization_code' },
+    accessTokenUrl: 'https://login.salesforce.com/services/oauth2/token',
+    authorizationUrl: 'https://login.salesforce.com/services/oauth2/authorize?response_type=code',
+    profileUrl: 'https://login.salesforce.com/services/oauth2/userinfo',
+    state: false,
+    profile: (profile) => {
+      return {
+        ...profile,
+        id: profile.user_id,
+        image: profile.picture
+      }
+    },
+    ...options
+  }
+}

www/docs/providers/salesforce.md

@@ -0,0 +1,22 @@
+---
+id: salesforce
+title: Salesforce
+---
+
+## Documentation
+
+https://help.salesforce.com/articleView?id=remoteaccess_authenticate.htm&type=5
+
+## Example
+
+```js
+import Providers from `next-auth/providers`
+...
+providers: [
+  Providers.Salesforce({
+    clientId: process.env.SALESFORCE_CLIENT_ID,
+    clientSecret: process.env.SALESFORCE_CLIENT_SECRET,
+  })
+}
+...
+```