CkPython

Google Translate API Refresh Access Token

See more Google Translate Examples

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

import sys
import chilkat

success = False

# 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 Translate API OAuth2 Access Token

jsonToken = chilkat.CkJsonObject()
success = jsonToken.LoadFile("qa_data/tokens/_googleTranslate.json")
if (success != True):
    print("Failed to load _googleTranslate.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/cloud-translation",
#   "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/_googleTranslate.json","utf-8",False)

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