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Merge pull request #267 from GoogleCloudPlatform/urlfetch
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Add UrlFetch Example
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waprin committed Apr 20, 2016
2 parents c998e4b + 7193c29 commit 176ec8c
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7 changes: 7 additions & 0 deletions appengine/urlfetch/README.md
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## App Engine UrlFetch Docs Snippets

This sample application demonstrates different ways to request a URL
on App Engine


<!-- auto-doc-link --><!-- end-auto-doc-link -->
7 changes: 7 additions & 0 deletions appengine/urlfetch/app.yaml
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runtime: python27
api_version: 1
threadsafe: yes

handlers:
- url: .*
script: main.app
97 changes: 97 additions & 0 deletions appengine/urlfetch/main.py
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# Copyright 2016 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""
Sample application that demonstrates different ways of fetching
URLS on App Engine
"""

import logging
# [START url-imports]
import urllib
import urllib2

from google.appengine.api import urlfetch
import webapp2
# [END url-imports]


class UrlLibFetchHandler(webapp2.RequestHandler):
""" Demonstrates an HTTP query using urllib2"""

def get(self):
# [START urllib-get]
url = "http://www.google.com/"
try:
result = urllib2.urlopen(url)
self.response.write(result.read())
except urllib2.URLError, e:
logging.error("Caught exception fetching url {}".format(e))
# [END urllib-get]


class UrlFetchHandler(webapp2.RequestHandler):
""" Demonstrates an HTTP query using urlfetch"""

def get(self):
# [START urlfetch-get]
url = "http://www.googleadsfasdf.com/"
try:
result = urlfetch.fetch(url)
if result.status_code == 200:
self.response.write(result.content)
else:
self.response.status_code = result.status_code
except urlfetch.Error, e:
logging.error("Caught exception fetching url {}".format(e))
# [END urlfetch-get]


class UrlPostHandler(webapp2.RequestHandler):
""" Demonstrates an HTTP POST form query using urlfetch"""

form_fields = {
"first_name": "Albert",
"last_name": "Johnson",
}

def get(self):
# [START urlfetch-post]
try:
form_data = urllib.urlencode(UrlPostHandler.form_fields)
headers = {'Content-Type': 'application/x-www-form-urlencoded'}
result = urlfetch.fetch(
url="http://localhost:8080/submit_form",
payload=form_data,
method=urlfetch.POST,
headers=headers)
self.response.write(result.content)
except urlfetch.Error, e:
logging.error("Caught exception fetching url {}".format(e))
# [END urlfetch-post]


class SubmitHandler(webapp2.RequestHandler):
""" Handler that receives UrlPostHandler POST request"""

def post(self):
self.response.out.write((self.request.get('first_name')))


app = webapp2.WSGIApplication([
('/', UrlLibFetchHandler),
('/url_fetch', UrlFetchHandler),
('/url_post', UrlPostHandler),
('/submit_form', SubmitHandler)
], debug=True)
50 changes: 50 additions & 0 deletions appengine/urlfetch/main_test.py
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# Copyright 2016 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import main

import mock
import pytest
import webtest


@pytest.fixture
def app():
return webtest.TestApp(main.app)


def test_url_lib(app):
response = app.get('/')
assert response.status_int == 200
assert "I'm Feeling Lucky" in response.body


@mock.patch("main.urlfetch")
def test_url_fetch(urlfetch_mock, app):
urlfetch_mock.fetch = mock.Mock(
return_value=mock.Mock(content="I'm Feeling Lucky",
status_code=200))
response = app.get('/url_fetch')
assert response.status_int == 200
assert "I'm Feeling Lucky" in response.body


@mock.patch("main.urlfetch")
def test_url_post(urlfetch_mock, app):
urlfetch_mock.fetch = mock.Mock(
return_value=mock.Mock(content="Albert",
status_code=200))
response = app.get('/url_post')
assert response.status_int == 200
assert "Albert" in response.body

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