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List Events on a Specified Google Calendar

See more Google Calendar Examples

Demonstrates how to fetch the list of events on a particular Google Calendar. The calendar can be referenced by the calendar ID, or by the keyword "primary".

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Local $bSuccess = False

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

;  This example uses a previously obtained access token having permission for the 
;  Google Calendar scope.

;  In this example, Get Google Calendar OAuth2 Access Token, the access
;  token was saved to a JSON file.  This example fetches the access token from the file..
$oJsonToken = ObjCreate("Chilkat.JsonObject")
$bSuccess = $oJsonToken.LoadFile("qa_data/tokens/googleCalendar.json")
If ($oJsonToken.HasMember("access_token") = False) Then
    ConsoleWrite("No access token found." & @CRLF)
    Exit
EndIf

$oHttp = ObjCreate("Chilkat.Http")
$oHttp.AuthToken = $oJsonToken.StringOf("access_token")

;  Let's get the primary calendar.  A calendar ID could have be used instead of "primary".
$oHttp.SetUrlVar("calendarId","primary")
$oSbResponse = ObjCreate("Chilkat.StringBuilder")
$bSuccess = $oHttp.QuickGetSb("https://www.googleapis.com/calendar/v3/calendars/{$calendarId}/events",$oSbResponse)
If ($bSuccess <> True) Then
    ConsoleWrite($oHttp.LastErrorText & @CRLF)
    Exit
EndIf

If ($oHttp.LastStatus <> 200) Then
    ;  Note: If a 401 unauthorized response is received, it likely means that the OAuth2 access token needs
    ;  to be refreshed or re-fetched.
    ConsoleWrite("Error response status: " & $oHttp.LastStatus & @CRLF)
    ConsoleWrite($oSbResponse.GetAsString() & @CRLF)
    Exit
EndIf

;  A sample JSON response:
;  (Code for parsing the Google Calendar events is shown below.)

;  {
;   "kind": "calendar#events",
;   "etag": "\"p32cfpufit76da0g\"",
;   "summary": "support@chilkatcloud.com",
;   "updated": "2017-08-10T14:00:27.199Z",
;   "timeZone": "America/Chicago",
;   "accessRole": "owner",
;   "defaultReminders": [
;    {
;     "method": "popup",
;     "minutes": 10
;    }
;   ],
;   "nextSyncToken": "CJj8-fLpzNUCEJj8-fLpzNUCGAU=",
;   "items": [
;    {
;     "kind": "calendar#event",
;     "etag": "\"3004746854620000\"",
;     "id": "5jt9fopfg3rr9eftegiuq7gc5k",
;     "status": "confirmed",
;     "htmlLink": "https://www.google.com/calendar/event?eid=NWp0OWZvcGZnM3JyOWVmdGVnaXVxN2djNWsgc3VwcG9ydEBjaGlsa2F0Y2xvdWQuY29t",
;     "created": "2017-08-10T13:57:07.000Z",
;     "updated": "2017-08-10T13:57:07.310Z",
;     "summary": "Run 10 miles",
;     "creator": {
;      "email": "support@chilkatcloud.com",
;      "self": true
;     },
;     "organizer": {
;      "email": "support@chilkatcloud.com",
;      "self": true
;     },
;     "start": {
;      "dateTime": "2017-08-10T12:00:00-05:00"
;     },
;     "end": {
;      "dateTime": "2017-08-10T13:00:00-05:00"
;     },
;     "iCalUID": "5jt9fopfg3rr9eftegiuq7gc5k@google.com",
;     "sequence": 0,
;     "hangoutLink": "https://plus.google.com/hangouts/_/chilkatcloud.com/support?hceid=c3VwcG9ydEBjaGlsa2F0Y2xvdWQuY29t.5jt9fopfg3rr9eftegiuq7gc5k",
;     "reminders": {
;      "useDefault": true
;     }
;    },
;    {
;     "kind": "calendar#event",
;     "etag": "\"3004746898118000\"",
;     "id": "7dvh49vd219r3sq7jdueieu8rc",
;     "status": "confirmed",
;     "htmlLink": "https://www.google.com/calendar/event?eid=N2R2aDQ5dmQyMTlyM3NxN2pkdWVpZXU4cmMgc3VwcG9ydEBjaGlsa2F0Y2xvdWQuY29t",
;     "created": "2017-08-10T13:57:29.000Z",
;     "updated": "2017-08-10T13:57:29.059Z",
;     "summary": "Eat Giordano's Pizza",
;     "creator": {
;      "email": "support@chilkatcloud.com",
;      "self": true
;     },
;     "organizer": {
;      "email": "support@chilkatcloud.com",
;      "self": true
;     },
;     "start": {
;      "dateTime": "2017-08-10T15:00:00-05:00"
;     },
;     "end": {
;      "dateTime": "2017-08-10T16:00:00-05:00"
;     },
;     "iCalUID": "7dvh49vd219r3sq7jdueieu8rc@google.com",
;     "sequence": 0,
;     "hangoutLink": "https://plus.google.com/hangouts/_/chilkatcloud.com/support?hceid=c3VwcG9ydEBjaGlsa2F0Y2xvdWQuY29t.7dvh49vd219r3sq7jdueieu8rc",
;     "reminders": {
;      "useDefault": true
;     }
;    },
;    {
;     "kind": "calendar#event",
;     "etag": "\"3004746915224000\"",
;     "id": "5btd89ljn07bg3tlgpimcaqrro",
;     "status": "confirmed",
;     "htmlLink": "https://www.google.com/calendar/event?eid=NWJ0ZDg5bGpuMDdiZzN0bGdwaW1jYXFycm8gc3VwcG9ydEBjaGlsa2F0Y2xvdWQuY29t",
;     "created": "2017-08-10T13:57:37.000Z",
;     "updated": "2017-08-10T13:57:37.612Z",
;     "summary": "Nap",
;     "creator": {
;      "email": "support@chilkatcloud.com",
;      "self": true
;     },
;     "organizer": {
;      "email": "support@chilkatcloud.com",
;      "self": true
;     },
;     "start": {
;      "dateTime": "2017-08-10T16:30:00-05:00"
;     },
;     "end": {
;      "dateTime": "2017-08-10T17:30:00-05:00"
;     },
;     "iCalUID": "5btd89ljn07bg3tlgpimcaqrro@google.com",
;     "sequence": 0,
;     "hangoutLink": "https://plus.google.com/hangouts/_/chilkatcloud.com/support?hceid=c3VwcG9ydEBjaGlsa2F0Y2xvdWQuY29t.5btd89ljn07bg3tlgpimcaqrro",
;     "reminders": {
;      "useDefault": true
;     }
;    }
;   ]
;  }
;  

$oJson = ObjCreate("Chilkat.JsonObject")
$oJson.LoadSb($oSbResponse)

Local $iNumEvents = $oJson.SizeOfArray("items")
Local $i = 0
While $i < $iNumEvents
    $oJson.I = $i
    ConsoleWrite($oJson.StringOf("items[i].summary") & @CRLF)
    ConsoleWrite($oJson.StringOf("items[i].start.dateTime") & @CRLF)
    ConsoleWrite($oJson.StringOf("items[i].end.dateTime") & @CRLF)
    ConsoleWrite("--" & @CRLF)
    $i = $i + 1
Wend

;  Sample output:

;  Run 10 miles
;  2017-08-10T12:00:00-05:00
;  2017-08-10T13:00:00-05:00
;  --
;  Eat Giordano's Pizza
;  2017-08-10T15:00:00-05:00
;  2017-08-10T16:00:00-05:00
;  --
;  Nap
;  2017-08-10T16:30:00-05:00
;  2017-08-10T17:30:00-05:00
;  --
;