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What's Covered

51Degrees device detector returns all detection results as a string. This tutorial demonstrates how to return results for the IsMobile property value as a boolean.

Code and Explanation

Getting started example of using 51Degrees device detection. The example shows how to:

  1. Import settings from the 51Degrees settings file 

    												
dataFile = settings.V3_TRIE_WRAPPER_DATABASE
properties = settings.PROPERTIES

  • Instantiate the 51Degrees device detection provider with these properties 

    									
provider = fiftyone_degrees_mobile_detector_v3_trie_wrapper.Provider(dataFile,
	properties)
  • Produce a match for a single HTTP User-Agent header 

    									
match = provider.getMatch(userAgent)

  • Extract the value of the IsMobile property as boolean 

    									
def isMobile(userAgent):
	match = provider.getMatch(userAgent)
	if (match.getValue('IsMobile') == 'True'):
		return True
    This example can be run in any directory, but assumes your settings file contains a valid dataFile location and has the IsMobile property selected.

    Full Source File 
    												
from FiftyOneDegrees import fiftyone_degrees_mobile_detector_v3_trie_wrapper
from fiftyone_degrees.mobile_detector.conf import settings
import sys

dataFile = settings.V3_TRIE_WRAPPER_DATABASE
properties = settings.PROPERTIES

provider = fiftyone_degrees_mobile_detector_v3_trie_wrapper.Provider(dataFile,
    properties)

# User-Agent string of an iPhone mobile device.
mobileUserAgent = ("Mozilla/5.0 (iPhone; CPU iPhone OS 7_1 like Mac OS X) "
"AppleWebKit/537.51.2 (KHTML, like Gecko) 'Version/7.0 Mobile/11D167 "
"Safari/9537.53")

# User-Agent string of Firefox Web browser version 41 on desktop.
desktopUserAgent = ("Mozilla/5.0 (Windows NT 6.3; WOW64; rv:41.0) "
"Gecko/20100101 Firefox/41.0")

# User-Agent string of a MediaHub device.
mediaHubUserAgent = ("Mozilla/5.0 (Linux; Android 4.4.2; X7 Quad Core "
"Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 "
"Chrome/30.0.0.0 Safari/537.36")

'''
isMobile function. Takes a User-Agent as an argument, carries out a
match and returns a boolean value for the IsMobile property of the
matched device.
'''
def isMobile(userAgent):
    match = provider.getMatch(userAgent)
    if (match.getValue('IsMobile') == 'True'):
        return True

def main():
    sys.stdout.write('Mobile User-Agent: %s\n' % mobileUserAgent)

# Determines whether the mobile User-Agent is a mobile device.
    if isMobile(mobileUserAgent):
        sys.stdout.write('   Mobile\n')
    else:
        sys.stdout.write('   Non-Mobile\n')

# Determines whether the desktop User-Agent is a mobile device.
    sys.stdout.write('Desktop User-Agent: %s\n' % desktopUserAgent)
    if isMobile(desktopUserAgent):
        sys.stdout.write('   Mobile\n')
    else:
        sys.stdout.write('   Non-Mobile\n')

# Determines whether the MediaHub User-Agent is a mobile device.
    sys.stdout.write('Media Hub User-Agent: %s\n' % mediaHubUserAgent)
    if isMobile(mediaHubUserAgent):
        sys.stdout.write('   Mobile\n')
    else:
        sys.stdout.write('   Non-Mobile\n')

if __name__ == '__main__':
    main()
    Full Source File

    • Summary

    In this tutorial you have seen how to use the detector to retrieve the IsMobile property for a pre-defined User-Agent string. It sets a boolean value to true or false from the original string value of "True" or "False", making if statements simpler to test.

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