Added a validator so that the key name is unique per service.

app/main/forms.py

@@ -238,4 +238,14 @@ class ConfirmMobileNumberForm(Form):
 
 
 class CreateKeyForm(Form):
-    key_name = StringField(u'Description of key')
+    def __init__(self, existing_key_names=[], *args, **kwargs):
+        self.existing_key_names = existing_key_names
+        super(CreateKeyForm, self).__init__(*args, **kwargs)
+
+    key_name = StringField(u'Description of key', validators=[
+        DataRequired(message='You need to give the key a name')
+    ])
+
+    def validate_key_name(self, key_name):
+        if key_name.data in self.existing_key_names:
+            raise ValidationError('A key with this name already exists')

app/main/views/api_keys.py

@@ -24,7 +24,10 @@ def api_keys(service_id):
 @main.route("/services/<int:service_id>/api-keys/create", methods=['GET', 'POST'])
 @login_required
 def create_api_key(service_id):
-    form = CreateKeyForm()
+    key_names = [
+        key['name'] for key in api_key_api_client.get_api_keys(service_id=service_id)['apiKeys']
+    ]
+    form = CreateKeyForm(key_names)
     if form.validate_on_submit():
         secret = api_key_api_client.create_api_key(service_id=service_id, key_name=form.key_name.data)
         return render_template('views/api-keys/show.html', service_id=service_id, secret=secret,