Visual FoxPro GMail: Parse GMail REST API Error Response

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Gets the current user's Gmail profile, but shows an error response and how to parse it..

Documentation: https://developers.google.com/gmail/api/v1/reference/users/getProfile

LOCAL loRest
LOCAL lnSuccess
LOCAL loOauth2
LOCAL loSbJson
LOCAL loJson
LOCAL lnErrorCode
LOCAL lcErrorMessage
LOCAL i
LOCAL lnCount_i
LOCAL lcDomain
LOCAL lcReason
LOCAL lcMessage
LOCAL lcExtendedHelp

loRest = CreateObject('Chilkat_9_5_0.Rest')

*   Provide a previously obtained OAuth2 access token.
loOauth2 = CreateObject('Chilkat_9_5_0.OAuth2')
loOauth2.AccessToken = "OAUTH2_ACCESS_TOKEN"
loRest.SetAuthOAuth2(loOauth2)

lnSuccess = loRest.Connect("www.googleapis.com",443,1,1)
IF (lnSuccess <> 1) THEN
    ? loRest.LastErrorText
    RELEASE loRest
    RELEASE loOauth2
    CANCEL
ENDIF

loRest.AddPathParam("userId","matt@chilkat.io")

loSbJson = CreateObject('Chilkat_9_5_0.StringBuilder')
lnSuccess = loRest.FullRequestNoBodySb("GET","/gmail/v1/users/userId/profile",loSbJson)
IF (lnSuccess <> 1) THEN
    ? loRest.LastErrorText
    RELEASE loRest
    RELEASE loOauth2
    RELEASE loSbJson
    CANCEL
ENDIF

IF (loRest.ResponseStatusCode <> 200) THEN
    ? "Received error response code: " + STR(loRest.ResponseStatusCode)
    ? "Response body:"
    ? loSbJson.GetAsString()
    RELEASE loRest
    RELEASE loOauth2
    RELEASE loSbJson
    CANCEL
ENDIF

loJson = CreateObject('Chilkat_9_5_0.JsonObject')
loJson.LoadSb(loSbJson)

*  The following code parses the JSON response.
*  A sample JSON response is shown below the sample code.

lnErrorCode = loJson.IntOf("error.code")
lcErrorMessage = loJson.StringOf("error.message")
i = 0
lnCount_i = loJson.SizeOfArray("error.errors")
DO WHILE i < lnCount_i
    loJson.I = i
    lcDomain = loJson.StringOf("error.errors[i].domain")
    lcReason = loJson.StringOf("error.errors[i].reason")
    lcMessage = loJson.StringOf("error.errors[i].message")
    lcExtendedHelp = loJson.StringOf("error.errors[i].extendedHelp")
    i = i + 1
ENDDO

? "Example Completed."

RELEASE loRest
RELEASE loOauth2
RELEASE loSbJson
RELEASE loJson

Sample JSON Response Body

{
 "error": {
  "errors": [
   {
    "domain": "usageLimits",
    "reason": "accessNotConfigured",
    "message": "Access Not Configured. Gmail API has not been used in project 377697329735 before or it is disabled. Enable it by visiting https://console.developers.google.com/apis/api/gmail.googleapis.com/overview?project=377697329735 then retry. If you enabled this API recently, wait a few minutes for the action to propagate to our systems and retry.",
    "extendedHelp": "https://console.developers.google.com/apis/api/gmail.googleapis.com/overview?project=377697329735"
   }
  ],
  "code": 403,
  "message": "Access Not Configured. Gmail API has not been used in project 377697329735 before or it is disabled. Enable it by visiting https://console.developers.google.com/apis/api/gmail.googleapis.com/overview?project=377697329735 then retry. If you enabled this API recently, wait a few minutes for the action to propagate to our systems and retry."
 }
}