Added quickstart auth page and redirect code

Author: robert-knight

app/docusign/views.py

@@ -76,8 +76,15 @@ def ds_callback():
 
 @ds.route("/must_authenticate")
 def ds_must_authenticate():
-    return render_template("must_authenticate.html", title="Must authenticate")
-
+    qs = DS_CONFIG["quickstart"]
+    if qs:
+        return redirect(url_for("ds.ds_quickstart_auth"))
+    else:
+        return render_template("must_authenticate.html", title="Must authenticate")
+
+@ds.route(("/quickstart_auth"))
+def ds_quickstart_auth():
+    return render_template("quickstart_auth.html", title = "Must authenticate")
 
 @ds.route("/ds_return")
 def ds_return():

app/templates/quickstart_auth.html

@@ -0,0 +1,23 @@
+<!-- extend base layout -->
+{% extends "base.html" %}
+
+{% block content %}
+    <div style="margin:1% 5%;">
+      <h1 class="display-4">Please Authenticate with DocuSign</h1>
+
+    <form method="post" data-busy="form" action={{ url_for("ds.ds_login") }}>
+        <div class="form-group col-md-5">
+            <label for="auth_type">Please choose your OAuth2.0 grant type</label>
+            <select class="form-control" id="auth_type" name="auth_type">
+                <option value="code_grant">Authorization Code Grant</option>
+            </select>
+            <p class="lead" style="padding-top: .5rem;">
+                <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
+                <button type="submit" class="btn btn-docu">Authenticate with DocuSign</button>
+            </p>
+        </div>
+    </form>
+      <hr class="my-4">
+      <p>You need to authenticate with DocuSign to continue your request.</p>
+    </div>
+{% endblock %}

app/templates/quickstarthome.html

@@ -11,7 +11,7 @@
       <tr>
       <td>
         <h1 class="display-4">Python Launcher</h1>
-      <p class="Xlead">Welcome to the DocuSign Python examples using multiple OAuth flows (JWT and Authorization Code Grant).</p>
+      <p class="Xlead">Welcome to the DocuSign Python Quickstart launcher.</p>
       </td>
       <td>
           <img src="/static/assets/banner-code.png" />