merchant-frontend-examples

commit 7830e8bab3954e3aac8195854224d972a9b38f9e
parent 3c196d954431c4287852dac18443e2c552137e4a
Author: Marcello Stanisci <marcello.stanisci@inria.fr>
Date:   Mon, 27 Mar 2017 22:28:11 +0200

python example shows order id on fulfillment page

Diffstat:
M
python/example/example.py
 | 
19
+++++++++----------

1 file changed, 9 insertions(+), 10 deletions(-)
diff --git a/python/example/example.py b/python/example/example.py
@@ -7,6 +7,7 @@ import os
 import logging
 import json
 from random import randint
+from datetime import datetime
 
 
 app = flask.Flask(__name__)
@@ -16,7 +17,7 @@ logger = logging.getLogger(__name__)
 CURRENCY = "PUDOS"
 BACKEND_URL = "http://backend.test.taler.net/"
 
-def make_url(page, query_params=dict()):
+def make_url(page, *query_params):
     """
     Return a URL to a page in the current Flask application with the given
     query parameters (sequence of key/value pairs).
@@ -48,9 +49,9 @@ def donate():
 def generate_proposal():
     DONATION = amount.string_to_amount("0.1:%s" % CURRENCY) 
     MAX_FEE = amount.string_to_amount("0.05:%s" % CURRENCY) 
-    ORDER_ID = str(randint(0, 999999))
+    ORDER_ID = "tutorial-%X-%s" % (randint(0, 0xFFFFFFFF), datetime.today().strftime("%H_%M_%S"))
     order = dict(
-        order_id = ORDER_ID,
+        order_id=ORDER_ID,
         nonce=flask.request.args.get("nonce"),
         amount=DONATION,
         max_fee=MAX_FEE,
@@ -62,7 +63,7 @@ def generate_proposal():
                 price=DONATION,
             ),
         ],
-        fulfillment_url=make_url("/fulfillment", query_params=dict(order_id=ORDER_ID)),
+        fulfillment_url=make_url("/fulfillment", ("order_id", ORDER_ID)),
         pay_url=make_url("/pay"),
         merchant=dict(
             instance="tutorial",
@@ -79,7 +80,6 @@ def generate_proposal():
         logger.error("failed to POST to '%s'", url)
         return r.text, r.status_code
     proposal_resp = r.json()
-    flask.session["order_id"] = ORDER_ID
     return flask.jsonify(**proposal_resp)
 
 
@@ -87,7 +87,7 @@ def generate_proposal():
 def fulfillment():
     paid = flask.session.get("paid", False)
     if paid:
-        return "Thank you!"
+        return "Thank you! Your order id is: <b>%s</b>." % flask.session["order_id"]
 
     response = flask.Response(status=402)
     response.headers["X-Taler-Contract-Url"] = make_url("/generate-contract")
@@ -103,14 +103,13 @@ def pay():
     if deposit_permission is None:
         e = flask.jsonify(error="no json in body")
         return e, 400
-    if (flask.session["order_id"] != deposit_permission["order_id"]):
-      e = flask.jsonify(error="Attempting to pay a product different \
-      from the ordered one (%s != %s)" % (flask.session["order_id"], deposit_permission["order_id"]))
-      return e, 406
+
     r = requests.post(urljoin(BACKEND_URL, 'pay'), json=deposit_permission)
     if 200 != r.status_code:
         return r.text, r.status_code
+    proposal_data = r.json()["proposal_data"]
 
     flask.session["paid"] = True
+    flask.session["order_id"] = proposal_data["order_id"]
 
     return flask.Response(status=200)