merchant-frontend-examples

commit 00e4c27a5f83471d50c290e233a9b7e5925fcf7d
parent 0b5a23780916ae3b0a8003719188737f00262296
Author: Marcello Stanisci <marcello.stanisci@inria.fr>
Date:   Tue, 21 Feb 2017 11:56:37 +0100

Generating contract Python tutorial

Diffstat:
D
Python/Makefile
 | 
5
-----
A
Python/lib/Makefile
 | 
7
+++++++
D
Python/tutorial/__pycache__/tutorial.cpython-35.pyc
 | 
0

M
Python/tutorial/tutorial.py
 | 
38
+++++++++++++++++++++-----------------

4 files changed, 28 insertions(+), 22 deletions(-)
diff --git a/Python/Makefile b/Python/Makefile
@@ -1,5 +0,0 @@
-all:
-	pip3 install lib --install-option="--prefix=$(TALER_PREFIX)"
-
-check:
-	python3 lib/pytaler/tests.py
diff --git a/Python/lib/Makefile b/Python/lib/Makefile
@@ -0,0 +1,7 @@
+# TALER_PREFIX must point to 'site-packages' dir.
+
+all:
+	pip3 install . --install-option="--prefix=$(TALER_PREFIX)"
+
+check:
+	python3 pytaler/tests.py
diff --git a/Python/tutorial/__pycache__/tutorial.cpython-35.pyc b/Python/tutorial/__pycache__/tutorial.cpython-35.pyc
Binary files differ.
diff --git a/Python/tutorial/tutorial.py b/Python/tutorial/tutorial.py
@@ -1,6 +1,13 @@
 import flask
+from urllib.parse import urljoin
+from pytaler import amounts
+
+
 app = flask.Flask(__name__)
 
+CURRENCY = "KUDOS"
+BACKEND_URL = "http://backend.test.taler.net/"
+
 @app.route('/')
 def index():
     return flask.render_template('index.html')
@@ -8,7 +15,7 @@ def index():
 
 @app.route('/donate')
 def donate():
-   resp = flask.Response()
+   resp = flask.Response(status=402)
    resp.headers['X-Taler-Contract-Url'] = '/generate-contract'
    return resp
 
@@ -16,34 +23,31 @@ def donate():
 @app.route('/generate-contract')
 def generate_contract():
     
-    # 1. Generate order.
-    # FIXME: pass to VALUE.FRACTION:CURRENCY notation.
-
-    donation_amount = amounts.amount_get_zero("KUDOS")
-
     order = dict(
         nonce=flask.request.args.get("nonce"),
-        amount=ARTICLE_AMOUNT,
-        max_fee=dict(value=1, fraction=0, currency=CURRENCY),
+        amount=amounts.string_to_amount("1.0:%s" % CURRENCY),
+        max_fee=amounts.string_to_amount("1.0:%s" % CURRENCY),
         products=[
             dict(
-                description="Essay: " + article_name.replace("_", " "),
+                description="Donation",
                 quantity=1,
                 product_id=0,
-                price=ARTICLE_AMOUNT,
+                price=amount,
             ),
         ],
-        fulfillment_url=make_url("/essay/" + quote(article_name)),
+        fulfillment_url=make_url("/fulfillment/"),
         merchant=dict(
-            instance=INSTANCE,
             address="nowhere",
-            name="Kudos Inc.",
+            name="Donation tutorial",
             jurisdiction="none",
         ),
-        extra=dict(article_name=article_name),
     )
 
+    url = urljoin(BACKEND_URL, 'proposal')
 
-
-    # 2. POST order to BE.
-    # 3. Relay proposal to client.
+    r = requests.post(url, json=dict(order=order))
+    if r.status_code != 200:
+        logger.error("failed to POST to '%s'", url)
+        return r.status_code, r.text
+    proposal_resp = r.json()
+    return flask.jsonify(**proposal_resp)