Visual FoxPro Google Calendar: Update (Patch) an Event

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Updates an event. (This example modifies the start/end date/time for the event id 52e7uk7j7vl5dosj7b25memov0 in the calendar with id = "support@chilkatcloud.com".)

Documentation: https://developers.google.com/google-apps/calendar/v3/reference/events/patch

LOCAL loRest
LOCAL lnSuccess
LOCAL loOauth2
LOCAL loJsonReq
LOCAL loSbReq
LOCAL loSbJson
LOCAL loJson
LOCAL lcKind
LOCAL lcEtag
LOCAL lcId
LOCAL lcStatus
LOCAL lcHtmlLink
LOCAL lcCreated
LOCAL lcUpdated
LOCAL lcSummary
LOCAL lcCreatorEmail
LOCAL lnCreatorSelf
LOCAL lcOrganizerEmail
LOCAL lnOrganizerSelf
LOCAL lcStartDateTime
LOCAL lcEndDateTime
LOCAL lcICalUID
LOCAL lnSequence
LOCAL lcHangoutLink
LOCAL lnRemindersUseDefault

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

*  The following code creates the JSON request body.
*  The JSON created by this code is shown below.
loJsonReq = CreateObject('Chilkat_9_5_0.JsonObject')
loJsonReq.UpdateString("start.dateTime","2017-11-27T10:30:00-06:00")
loJsonReq.UpdateString("end.dateTime","2017-11-27T11:30:00-06:00")

loSbReq = CreateObject('Chilkat_9_5_0.StringBuilder')
loJsonReq.EmitSb(loSbReq)

loRest.AddHeader("Content-Type","application/json")

loSbJson = CreateObject('Chilkat_9_5_0.StringBuilder')
lnSuccess = loRest.FullRequestSb("PATCH","/calendar/v3/calendars/support@chilkatcloud.com/events/52e7uk7j7vl5dosj7b25memov0",loSbReq,loSbJson)
IF (lnSuccess <> 1) THEN
    ? loRest.LastErrorText
    RELEASE loRest
    RELEASE loOauth2
    RELEASE loJsonReq
    RELEASE loSbReq
    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 loJsonReq
    RELEASE loSbReq
    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.

lcKind = loJson.StringOf("kind")
lcEtag = loJson.StringOf("etag")
lcId = loJson.StringOf("id")
lcStatus = loJson.StringOf("status")
lcHtmlLink = loJson.StringOf("htmlLink")
lcCreated = loJson.StringOf("created")
lcUpdated = loJson.StringOf("updated")
lcSummary = loJson.StringOf("summary")
lcCreatorEmail = loJson.StringOf("creator.email")
lnCreatorSelf = loJson.BoolOf("creator.self")
lcOrganizerEmail = loJson.StringOf("organizer.email")
lnOrganizerSelf = loJson.BoolOf("organizer.self")
lcStartDateTime = loJson.StringOf("start.dateTime")
lcEndDateTime = loJson.StringOf("end.dateTime")
lcICalUID = loJson.StringOf("iCalUID")
lnSequence = loJson.IntOf("sequence")
lcHangoutLink = loJson.StringOf("hangoutLink")
lnRemindersUseDefault = loJson.BoolOf("reminders.useDefault")

? "Example Completed."

RELEASE loRest
RELEASE loOauth2
RELEASE loJsonReq
RELEASE loSbReq
RELEASE loSbJson
RELEASE loJson

Sample JSON Request Body

{
  "start": {
    "dateTime": "2017-11-27T10:30:00-06:00"
  },
  "end": {
    "dateTime": "2017-11-27T11:30:00-06:00"
  }
}

Sample JSON Response Body

{
  "kind": "calendar#event",
  "etag": "\"3020353646374000\"",
  "id": "52e7uk7j7vl5dosj7b25memov0",
  "status": "confirmed",
  "htmlLink": "https://www.google.com/calendar/event?eid=NTJlN3VrN2o3dmw1ZG9zajdiMjVtZW1vdjAgc3VwcG9ydEBjaGlsa2F0Y2xvdWQuY29t",
  "created": "2017-11-08T21:27:50.000Z",
  "updated": "2017-11-08T21:33:43.187Z",
  "summary": "Dentist Appointment",
  "creator": {
    "email": "support@chilkatcloud.com",
    "self": true
  },
  "organizer": {
    "email": "support@chilkatcloud.com",
    "self": true
  },
  "start": {
    "dateTime": "2017-11-27T10:30:00-06:00"
  },
  "end": {
    "dateTime": "2017-11-27T11:30:00-06:00"
  },
  "iCalUID": "52e7uk7j7vl5dosj7b25memov0@google.com",
  "sequence": 1,
  "hangoutLink": "https://plus.google.com/hangouts/_/chilkatcloud.com/support?hceid=c3VwcG9ydEBjaGlsa2F0Y2xvdWQuY29t.52e7uk7j7vl5dosj7b25memov0",
  "reminders": {
    "useDefault": true
  }
}