Added endpoints for the proxy to notifications.

- this uses alpha API for delivery
- no DB model included as just proving
- all notifications for same service at the moment (!)

app/notifications/rest.py

@@ -0,0 +1,73 @@
+from flask import (
+    Blueprint,
+    jsonify,
+    request
+)
+
+from app import notify_alpha_client
+import re
+
+mobile_regex = re.compile("^\\+44[\\d]{10}$")
+
+notifications = Blueprint('notifications', __name__)
+
+
+@notifications.route('/', methods=['GET'])
+def get_notifications():
+    return jsonify(notify_alpha_client.fetch_notifications()), 200
+
+
+@notifications.route('/sms', methods=['POST'])
+def create_sms_notification():
+    notification = request.get_json()['notification']
+
+    errors = {}
+    to_errors = validate_to(notification)
+    message_errors = validate_message(notification)
+
+    if to_errors:
+        errors.update(to_errors)
+    if message_errors:
+        errors.update(message_errors)
+
+    if errors:
+        return jsonify(result="error", message=errors), 400
+
+    return jsonify(notify_alpha_client.send_sms(mobile_number=notification['to'], message=notification['message'])), 200
+
+
+@notifications.route('/email', methods=['POST'])
+def create_email_notification():
+    return jsonify(id=123)
+
+
+def validate_to(json_body):
+    errors = []
+
+    if 'to' not in json_body:
+        errors.append('required')
+    else:
+        if not mobile_regex.match(json_body['to']):
+            errors.append('invalid phone number, must be of format +441234123123')
+    if errors:
+        return {
+            "to": errors
+        }
+    return None
+
+
+def validate_message(json_body):
+    errors = []
+
+    if 'message' not in json_body:
+        errors.append('required')
+    else:
+        message_length = len(json_body['message'])
+        if message_length < 1 or message_length > 160:
+            errors.append('Invalid length. [1 - 160]')
+
+    if errors:
+        return {
+            "message": errors
+        }
+    return None