[taler-taler-merchant-demos] branch master updated: order ID

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dold pushed a commit to branch master
in repository taler-merchant-demos.

The following commit(s) were added to refs/heads/master by this push:
     new 7516fb2  order ID
7516fb2 is described below

commit 7516fb2d4d8e38243ec900183520020ffe51cf69
Author: Florian Dold <florian.dold@gmail.com>
AuthorDate: Tue Aug 11 23:21:21 2020 +0530

    order ID
---
 talermerchantdemos/blog/blog.py | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/talermerchantdemos/blog/blog.py b/talermerchantdemos/blog/blog.py
index c026adb..1e07267 100644
--- a/talermerchantdemos/blog/blog.py
+++ b/talermerchantdemos/blog/blog.py
@@ -26,7 +26,7 @@ import base64
 import flask
 import lxml.etree
 import time
-from urllib.parse import urljoin
+from urllib.parse import urljoin, urlencode, urlparse
 from cachelib import UWSGICache, SimpleCache
 from taler.util.talerconfig import TalerConfig
 from ..blog.content import ARTICLES, get_article_file, get_image_file
@@ -186,6 +186,13 @@ def render_article(article_name, data, order_id):
     )
 
 
+def add_param(url, key, val):
+    params = urlencode(dict(key=val))
+    if urlparse(url)[4]:
+        return url + '&' + params
+    else:
+        return url + '?' + params
+
 ##
 # Trigger a article purchase.  The logic follows the main steps:
 #
@@ -227,7 +234,7 @@ def article(article_name, data=None):
         order = dict(
             amount=ARTICLE_AMOUNT,
             extra=dict(article_name=article_name),
-            fulfillment_url=flask.request.base_url,
+            fulfillment_url=add_param(flask.request.base_url, "order_id", 
"${ORDER_ID}"),
             summary="Essay: " + article_name.replace("_", " "),
             # 10 minutes time for a refund
             refund_deadline=dict(t_ms=1000 * int(time.time() + 10 * 30)),

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