(Ruby) ChartURL - Create a Signed URL

Demonstrates how to create a signed URL for ChartURL.

Chilkat Ruby Downloads Ruby Library for Linux and MAC OS X

require 'chilkat'

#  This example assumes Chilkat Crypt2 to have been previously unlocked.
#  See Unlock Crypt2 for sample code.

crypt = Chilkat::CkCrypt2.new()

#  Example key: "dek-d7a46236eda961a6c3c18ffcc6b077ba87d27e9ae85f7842c6d427c265dd5f69d5131308d93332353d4a55a4b1160fcf516515a4a9f0aa50fbf2d7a2e7d0f1c5"
key = "charturl-sign-encrypt-key"
#  Example token: "dt-RwYN"
token = "charturl-token"

slug = "weekly-activity"
data = "{ \"options\": {\"data\": {\"columns\": [[\"This Week\",10,13],[\"Last Week\",9,5]]}}}"

crypt.put_HashAlgorithm("SHA256")
crypt.put_MacAlgorithm("HMAC")
crypt.SetMacKeyString(key)
crypt.put_EncodingMode("base64")

json = Chilkat::CkJsonObject.new()
json.Load(data)
print "json = " + json.emit() + "\n";

sig = crypt.macStringENC(json.emit())

sbUrl = Chilkat::CkStringBuilder.new()
sbUrl.Append("https://charturl.com/i/")
sbUrl.Append(token)
sbUrl.Append("/")
sbUrl.Append(slug)
sbUrl.Append("?d=")
sbUrl.Append(crypt.encodeString(json.emit(),"utf-8","url"))
sbUrl.Append("&s=")
sbUrl.Append(crypt.encodeString(sig,"utf-8","url"))

print "Signed URL: " + sbUrl.getAsString() + "\n";