Go

List Google Calendars

See more Google Calendar Examples

Demonstrates how to list the Google Calendars for an account. Go

    success := 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..
    jsonToken := chilkat.NewJsonObject()
    success = jsonToken.LoadFile("qa_data/tokens/googleCalendar.json")
    if jsonToken.HasMember("access_token") == false {
        fmt.Println("No access token found.")
        jsonToken.DisposeJsonObject()
        return
    }

    http := chilkat.NewHttp()
    http.SetAuthToken(jsonToken.StringOf("access_token"))

    jsonResponse := http.QuickGetStr("https://www.googleapis.com/calendar/v3/users/me/calendarList")
    if http.LastMethodSuccess() != true {
        fmt.Println(http.LastErrorText())
        jsonToken.DisposeJsonObject()
        http.DisposeHttp()
        return
    }

    fmt.Println(*jsonResponse)
    fmt.Println("-----------------------------")

    // This is a sample JSON response:
    // (Sample code to iterate over the JSON response is shown below.)

    // {
    //  "kind": "calendar#calendarList",
    //  "etag": "\"p32cfpufit76da0g\"",
    //  "nextSyncToken": "CJj8-fLpzNUCEhhzdXBwb3J0QGNoaWxrYXRjbG91ZC5jb20=",
    //  "items": [
    //   {
    //    "kind": "calendar#calendarListEntry",
    //    "etag": "\"1465249947472000\"",
    //    "id": "support@chilkatcloud.com",
    //    "summary": "support@chilkatcloud.com",
    //    "timeZone": "America/Chicago",
    //    "colorId": "14",
    //    "backgroundColor": "#9fe1e7",
    //    "foregroundColor": "#000000",
    //    "selected": true,
    //    "accessRole": "owner",
    //    "defaultReminders": [
    //     {
    //      "method": "popup",
    //      "minutes": 10
    //     }
    //    ],
    //    "notificationSettings": {
    //     "notifications": [
    //      {
    //       "type": "eventCreation",
    //       "method": "email"
    //      },
    //      {
    //       "type": "eventChange",
    //       "method": "email"
    //      },
    //      {
    //       "type": "eventCancellation",
    //       "method": "email"
    //      },
    //      {
    //       "type": "eventResponse",
    //       "method": "email"
    //      }
    //     ]
    //    },
    //    "primary": true
    //   },
    //   {
    //    "kind": "calendar#calendarListEntry",
    //    "etag": "\"1502373382732000\"",
    //    "id": "#contacts@group.v.calendar.google.com",
    //    "summary": "Contacts",
    //    "timeZone": "America/Chicago",
    //    "colorId": "13",
    //    "backgroundColor": "#92e1c0",
    //    "foregroundColor": "#000000",
    //    "selected": true,
    //    "accessRole": "reader",
    //    "defaultReminders": []
    //   },
    //   {
    //    "kind": "calendar#calendarListEntry",
    //    "etag": "\"1502373376447000\"",
    //    "id": "en.usa#holiday@group.v.calendar.google.com",
    //    "summary": "Holidays in United States",
    //    "timeZone": "America/Chicago",
    //    "colorId": "8",
    //    "backgroundColor": "#16a765",
    //    "foregroundColor": "#000000",
    //    "selected": true,
    //    "accessRole": "reader",
    //    "defaultReminders": []
    //   }
    //  ]
    // }
    // 

    // Iterate over the JSON response..
    json := chilkat.NewJsonObject()
    json.Load(*jsonResponse)

    numCalendars := json.SizeOfArray("items")
    i := 0
    for i < numCalendars {
        fmt.Println("--- ", i, " ---")
        json.SetI(i)
        fmt.Println("kind: ", *json.StringOf("items[i].kind"))
        fmt.Println("id: ", *json.StringOf("items[i].id"))

        // Examine the notification settings, if any..
        numSettings := json.SizeOfArray("items[i].notificationSettings.notifications")
        if numSettings > 0 {
            j := 0
            for j < numSettings {
                json.SetJ(j)
                fmt.Println("Notification Type: ", *json.StringOf("items[i].notificationSettings.notifications[j].type"))
                fmt.Println("Notification Method: ", *json.StringOf("items[i].notificationSettings.notifications[j].method"))
                j = j + 1
            }

        }

        i = i + 1
    }


    jsonToken.DisposeJsonObject()
    http.DisposeHttp()
    json.DisposeJsonObject()