AutoIt

Google Translate API Refresh Access Token

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

Local $bSuccess = 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

$oJsonToken = ObjCreate("Chilkat.JsonObject")
$bSuccess = $oJsonToken.LoadFile("qa_data/tokens/_googleTranslate.json")
If ($bSuccess <> True) Then
    ConsoleWrite("Failed to load _googleTranslate.json" & @CRLF)
    Exit
EndIf

;  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"
;  }

$oOauth2 = ObjCreate("Chilkat.OAuth2")

$oOauth2.TokenEndpoint = "https://www.googleapis.com/oauth2/v4/token"

;  Replace these with actual values.
$oOauth2.ClientId = "GOOGLE-CLIENT-ID"
$oOauth2.ClientSecret = "GOOGLE-CLIENT-SECRET"

;  Get the "refresh_token"
$oOauth2.RefreshToken = $oJsonToken.StringOf("refresh_token")

;  Send the HTTP POST to refresh the access token..
$bSuccess = $oOauth2.RefreshAccessToken()
If ($bSuccess <> True) Then
    ConsoleWrite($oOauth2.LastErrorText & @CRLF)
    Exit
EndIf

;  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.
$oJsonToken.UpdateString("access_token",$oOauth2.AccessToken)

;  Save the new JSON access token response to a file.
$oSbJson = ObjCreate("Chilkat.StringBuilder")
$oJsonToken.EmitCompact = False
$oJsonToken.EmitSb($oSbJson)
$oSbJson.WriteFile("qa_data/tokens/_googleTranslate.json","utf-8",False)

ConsoleWrite("OAuth2 authorization granted!" & @CRLF)
ConsoleWrite("New Access Token = " & $oOauth2.AccessToken & @CRLF)