Add error handler for 400 and 500

app.py

@@ -78,11 +78,21 @@ def inject_user():
     return dict(user=user)
 
 
+@app.errorhandler(400)
+def bad_request(e):
+    return render_template('400.html'), 400
+
+
 @app.errorhandler(404)
 def page_not_found(e):
     return render_template('404.html'), 404
 
 
+@app.errorhandler(500)
+def internal_server_error(e):
+    return render_template('500.html'), 500
+
+
 @app.route('/', methods=['GET', 'POST'])
 def index():
     if request.method == 'POST':

templates/400.html

@@ -0,0 +1,12 @@
+{% extends 'base.html' %}
+
+{% block content %}
+<ul class="movie-list">
+    <li>
+        Bad Request - 400
+        <span class="float-right">
+            <a href="{{ url_for('index') }}">Go Back</a>
+        </span>
+    </li>
+</ul>
+{% endblock %}

templates/500.html

@@ -0,0 +1,12 @@
+{% extends 'base.html' %}
+
+{% block content %}
+<ul class="movie-list">
+    <li>
+        Internal Server Error - 500
+        <span class="float-right">
+            <a href="{{ url_for('index') }}">Go Back</a>
+        </span>
+    </li>
+</ul>
+{% endblock %}