Go

URL Signing for Google Maps API

See more Encryption Examples

Demonstrates how to sign a URL for the Google Maps API. Go

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    crypt := chilkat.NewCrypt2()

    // 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.SetEncodingMode("modBase64")

    // Set the hash algorithm to sha-1
    crypt.SetHashAlgorithm("sha-1")
    crypt.SetMacAlgorithm("hmac")

    var sig *string = new(string)

    // Set the HMAC key (this is the private key provided by Google)
    crypt.SetMacKeyEncoded("vNIXE0xscrmjlyV-12Nj_BvUPaw=","modBase64")

    // Compute the URL signature
    sig = crypt.MacStringENC("/maps/api/geocode/json?address=New+York&sensor=false&client=clientID")

    // The result should be KrU1TzVQM7Ur0i8i7K3huiw3MsA=
    fmt.Println(*sig)

    crypt.DisposeCrypt2()