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Project Description

A simple Python client library for interacting with the ArcGIS Geotrigger Service via the GeotriggerClient object.

The Geotrigger Service is a cloud-hosted geofencing platform, which sends push notifications or notifies a remote server when a device enters or exits an area.

The Geotrigger API manages Application and Device information and permissions, as well as providing access to create, update, and list information about Triggers, Tags, and Device Locations.

For more information please refer to the Geotrigger Service Documentation.

Features

  • Handles authentication and refreshing of credentials
  • Supports making requests as an application, allowing for full management of devices, triggers, tags, and permissions
  • Also supports making requests as a device, which can be useful for testing purposes

Dependencies

  • Requests (>= 2.1.0)

For running tests, you’ll also need:

  • Mock (>= 1.0.1)

Installation

You can install geotrigger-python from PyPI using the following command:

pip install geotrigger-python

It’s also possible to install from a clone of this repository by running setup.py install or setup.py develop.

Examples

Using the GeotriggerClient as an application

This method of using the GeotriggerClient is for server-side apps, acting as the sole owner of your ArcGIS application.

Before continuing, you’ll need to find the client_id and client_secret for your ArcGIS application on the ArcGIS for Developers site. You’ll find them in the API Access section of your applications details.

Please make sure to keep your client_secret secure. If a third party obtains your client secret, the will be able to do anything they want to your Geotrigger application. Your client_secret should only be included in server-side applications and should never be distributed as part of a client-side web or mobile application.

You will need to fill in values for the variable names given in all-caps.

from geotrigger import GeotriggerClient

# Create a GeotriggerClient as an Application
gt = GeotriggerClient(CLIENT_ID, CLIENT_SECRET)

# Fetch a list of all triggers in this application.
triggers = gt.request('trigger/list')

# Print all the triggers and any tags applied to them.
print "\nFound %d triggers:" % len(triggers['triggers'])
for t in triggers['triggers']:
    print "- %s (%s)" % (t['triggerId'], ",".join(t['tags']))

# Add "testing123" tag to all of the triggers that we fetched above.
triggers_updated = gt.request('trigger/update', {
    'triggerIds': [t['triggerId'] for t in triggers['triggers']],
    'addTags': TAG
})

# Print the updated triggers.
print "\nUpdated %d triggers:" % len(triggers_updated['triggers'])
for t in triggers_updated['triggers']:
    print "- %s (%s)" % (t['triggerId'], ",".join(t['tags']))

# Delete the "testing123" tag from the application.
tags_deleted = gt.request('tag/delete', {'tags': TAG})
print '\nDeleted tags: "%s"' % ", ".join(tags_deleted.keys())

Using the GeotriggerClient as a Device

The GeotriggerClient can also be used as if it were a device, which will allow you to send location updates and fire triggers, but you will not be able to receive any Geotrigger notifications, because they are sent as push messages to actual mobile devices. You can use the trigger/history API route or configure your triggers with a callbackUrl in order to observe that triggers are being fired.

You’ll only need the client_id for your application in order to use the GeotriggerClient as a device.

For testing callback triggers, you can use the handy RequestBin service. Create a new bin and provide its URL as the callbackUrl when creating a trigger.

You will need to fill in values for the variable names given in all-caps.

from geotrigger import GeotriggerClient

# Create a GeotriggerClient as a device
gt = GeotriggerClient(CLIENT_ID)

# Default tags are created for all devices and triggers. Device default tags
# can be used when you want to allow devices to create triggers that only they
# can fire. Default tags look like: 'device:device_id' or 'trigger:trigger_id'
device_tag = 'device:%s' % gt.session.device_id

# Build a callback trigger, using your default tag and RequestBin URL.
esri_hq = {
    'condition': {
        'geo': {
            'latitude': 34.0562,
            'longitude': -117.1956,
            'distance': 100
        },
        'direction': 'enter'
    },
    'action': {
        'callbackUrl': CALLBACK_URL
    },
    'setTags': device_tag
}

# Post the trigger to the Geotrigger API
trigger = gt.request('trigger/create', esri_hq)
print trigger

# Construct a fake location update to send to the Geotrigger API.
# Supplying a previous location is not strictly required, but will speed up
# trigger processing by avoiding a database lookup.
location_update = {
    'previous': {
        'timestamp': datetime.now().isoformat(),
        'latitude': 45.5165,
        'longitude': -122.6764,
        'accuracy': 5,
    },
    'locations': [
        {
            'timestamp': datetime.now().isoformat(),
            'latitude': 34.0562,
            'longitude': -117.1956,
            'accuracy': 5,
        }
    ]
}

# Send the location update.
update_response = gt.request('location/update', location_update)
print update_response

Shortly after running the above code, you will see a POST to your callback url.

Advanced GeotriggerClient usage

If you already have an ArcGIS Application access_token that you’d like to use to create a GeotriggerClient, pass in a GeotriggerApplication as the session kwarg. You may want to do this if you are integrating Geotrigger functionality into an application that already obtains credentials from ArcGIS Online.

Similarly, if you want to impersonate an existing device for which you already have a client_id, device_id, access_token, and refresh_token, you can create your own GeotriggerDevice to pass into the GeotriggerClient. This can be used to debug apps that are being developed with the Geotrigger SDKs for Android and iOS.

from geotrigger import GeotriggerClient, GeotriggerApplication, GeotriggerDevice

app = GeotriggerApplication(CLIENT_ID, CLIENT_SECRET, ACCESS_TOKEN)
app_client = GeotriggerClient(session=app)

device = GeotriggerDevice(CLIENT_ID, DEVICE_ID, ACCESS_TOKEN, REFRESH_TOKEN)
device_client = GeotriggerClient(session=device)

Issues

Find a bug or want to request a new feature? Please let us know by submitting an issue.

Contributing

Esri welcomes contributions from anyone and everyone. Please see our guidelines for contributing.

Licensing

Copyright 2013 Esri

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.

A copy of the license is available in the LICENSE file.

Release History

Release History

0.1.1

This version

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0.1.0

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Download Files

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geotrigger-python-0.1.1.macosx-10.9-x86_64.exe (80.8 kB) Copy SHA256 Checksum SHA256 any Windows Installer Feb 19, 2014
geotrigger-python-0.1.1.tar.gz (7.9 kB) Copy SHA256 Checksum SHA256 Source Feb 19, 2014

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