(CkPython) Google People API Refresh Access Token

Demonstrates how to refresh a Google Access Token for the Google People API.

Chilkat Python Downloads install with pip pip3 install chilkat or download... Python Module for Windows, MacOS, Linux, Alpine Linux, Solaris

import sys
import chilkat

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

# It is assumed we previously obtained an OAuth2 access token.
# This example loads the JSON access token file 
# saved by this example: Get Google People API OAuth2 Access Token

jsonToken = chilkat.CkJsonObject()
success = jsonToken.LoadFile("qa_data/tokens/googlePeople.json")
if (success != True):
    print("Failed to load googlePeople.json")
    sys.exit()

# The access token JSON looks like this:

# {
#   "access_token": "ya29.a0AfH6S ... LAZYFUkf0",
#   "expires_in": 3599,
#   "refresh_token": "1//0fL_Ov ... ee0",
#   "scope": "https://www.googleapis.com/auth/contacts",
#   "token_type": "Bearer"
# }

oauth2 = chilkat.CkOAuth2()

oauth2.put_TokenEndpoint("https://www.googleapis.com/oauth2/v4/token")

# Replace these with actual values.
oauth2.put_ClientId("GOOGLE-CLIENT-ID")
oauth2.put_ClientSecret("GOOGLE-CLIENT-SECRET")

# Get the "refresh_token"
oauth2.put_RefreshToken(jsonToken.stringOf("refresh_token"))

# Send the HTTP POST to refresh the access token..
success = oauth2.RefreshAccessToken()
if (success != True):
    print(oauth2.lastErrorText())
    sys.exit()

# The response contains a new access token, but we must keep
# our existing refresh token for when we need to refresh again in the future.
jsonToken.UpdateString("access_token",oauth2.accessToken())

# Save the new JSON access token response to a file.
sbJson = chilkat.CkStringBuilder()
jsonToken.put_EmitCompact(False)
jsonToken.EmitSb(sbJson)
sbJson.WriteFile("qa_data/tokens/googlePeople.json","utf-8",False)

print("OAuth2 authorization granted!")
print("New Access Token = " + oauth2.accessToken())