(Chilkat2-Python) Refresh Cloud Storage OAuth2 Access Token (Authorization Code Flow)

See more Google Cloud Storage Examples

Demonstrates how to refresh an expired or soon-to-expire Cloud Storage OAuth2 access token obtained by the Authorization Code Flow (i.e. NOT for a Service Account).

Chilkat2 Python Downloads install with pip pip3 install chilkat2 or download... Python Module for Windows, Linux, Alpine Linux, MacOS, Solaris

import sys
import chilkat2

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

jsonToken = chilkat2.JsonObject()
success = jsonToken.LoadFile("qa_data/tokens/googleCloudStorage.json")
if (success != True):
    print("Failed to load googleCloudStorage.json")
    sys.exit()

# The access token JSON looks like this:

# 	{ 
# 	 "access_token": "ya29.a0Ad52N3_4eOd5_T7....",
# 	 "token_type": "Bearer",
# 	 "expires_in": 3600,
# 	 "refresh_token": "1/lEe5abcdNJ77eOSDBabcdkQGVmDalkwabcdR2Hatbo"
# 	}
# 

oauth2 = chilkat2.OAuth2()

oauth2.TokenEndpoint = "https://www.googleapis.com/oauth2/v4/token"

# Replace these with actual values.
oauth2.ClientId = "GOOGLE-CLIENT-ID"
oauth2.ClientSecret = "GOOGLE-CLIENT-SECRET"

# Get the "refresh_token"
oauth2.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 = chilkat2.StringBuilder()
jsonToken.EmitCompact = False
jsonToken.EmitSb(sbJson)
sbJson.WriteFile("qa_data/tokens/googleCloudStorage.json","utf-8",False)

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