Ruby

Get Access Token for Google Tasks using Service Account JSON Key

See more Google Tasks Examples

Demonstrates how to get an access token for the Google Tasks API using a Service Account JSON key. Ruby

require 'chilkat'

success = false

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

# First load the JSON key into a string.
fac = Chilkat::CkFileAccess.new()
jsonKey = fac.readEntireTextFile("qa_data/googleSvcAccountKeys/ChilkatCloud-48f7737c7505.json","utf-8")
if (fac.get_LastMethodSuccess() != true)
    print fac.lastErrorText() + "\n";
    exit
end

# A JSON private key should look like this:

# {
#   "type": "service_account",
#   "project_id": "chilkatcloud",
#   "private_key_id": "48f7737c7505bb88eee6a20d09993e10605d466e",
#   "private_key": "-----BEGIN PRIVATE KEY----- ... -----END PRIVATE KEY-----\n",
#   "client_email": "pip-564@chilkatcloud.iam.gserviceaccount.com",
#   "client_id": "109982228323456925225",
#   "auth_uri": "https://accounts.google.com/o/oauth2/auth",
#   "token_uri": "https://oauth2.googleapis.com/token",
#   "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
#   "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/pip-564%40chilkatcloud.iam.gserviceaccount.com"
# }

gAuth = Chilkat::CkAuthGoogle.new()
gAuth.put_JsonKey(jsonKey)

# Choose the scope for read/write access.
gAuth.put_Scope("https://www.googleapis.com/auth/tasks")

# Request an access token that is valid for this many seconds.
gAuth.put_ExpireNumSeconds(3600)

gAuth.put_SubEmailAddress("")

# Connect to www.googleapis.com using TLS
tlsSock = Chilkat::CkSocket.new()
success = tlsSock.Connect("www.googleapis.com",443,true,5000)
if (success != true)
    print tlsSock.lastErrorText() + "\n";
    exit
end

# Send the request to obtain the access token.
success = gAuth.ObtainAccessToken(tlsSock)
if (success != true)
    print gAuth.lastErrorText() + "\n";
    exit
end

# Examine the access token:
print "Access Token: " + gAuth.accessToken() + "\n";

# Save our access token to a file.
success = fac.WriteEntireTextFile("qa_data/tokens/googleTasks.txt",gAuth.accessToken(),"utf-8",false)