diff --git a/README.md b/README.md
index 4404dcc..6d8ffa1 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,11 @@ Do cool stuff:
 ```javascript
 var api = require('infusionsoft-api');
 
-var infusionsoft = new api.DataContext('myapp', 'MY_API_KEY');
+var infusionsoft = new api.DataContext(
+    {
+		url: 'https://api.infusionsoft.com/crm/xmlrpc',
+		headers: {Authorization: `Bearer ${access_token}`}
+	});
 
 infusionsoft.Contacts
     .where(Contact.FirstName, 'Brandon')
diff --git a/lib/DataContext.js b/lib/DataContext.js
index 66f0661..a3ceb13 100644
--- a/lib/DataContext.js
+++ b/lib/DataContext.js
@@ -16,12 +16,9 @@ module.exports = DataContext = typedef
 // of the services.
 .class('DataContext') .define({
 
-    __constructor__: function(appName, apiKey)
+    __constructor__: function(options)
     {
-        this.appName = appName;
-        this.apiKey  = apiKey;
-        this.client  = xmlrpc.createSecureClient(
-            'https://' + this.appName + '.infusionsoft.com/api/xmlrpc');
+		this.client  = xmlrpc.createSecureClient(options);
 
         this._setupServices();
         this._setupTables();