(Chilkat2-Python) URL Signing for Google Maps API
Demonstrates how to sign a URL for the Google Maps API.
import chilkat2
# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.
crypt = chilkat2.Crypt2()
# The output will be modified Base64.
# Modified Base64 for URLs replaces the '+' and '/' characters
# of standard Base64 with '-' and '_' respectively, so that these
# Base64 signatures no longer need to be URL-encoded.
crypt.EncodingMode = "modBase64"
# Set the hash algorithm to sha-1
crypt.HashAlgorithm = "sha-1"
# Set the HMAC key (this is the private key provided by Google)
crypt.SetHmacKeyEncoded("vNIXE0xscrmjlyV-12Nj_BvUPaw=","modBase64")
# Compute the URL signature
sig = crypt.HmacStringENC("/maps/api/geocode/json?address=New+York&sensor=false&client=clientID")
# The result should be KrU1TzVQM7Ur0i8i7K3huiw3MsA=
print(sig)
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