(Tcl) Insert a New Google Calendar Event

See more Google Calendar Examples

Demonstrates how to insert a new Google Calendar event.

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load ./chilkat.dll

# 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..
set jsonToken [new_CkJsonObject]

set success [CkJsonObject_LoadFile $jsonToken "qa_data/tokens/googleCalendar.json"]
if {[CkJsonObject_HasMember $jsonToken "access_token"] == 0} then {
    puts "No access token found."
    delete_CkJsonObject $jsonToken
    exit
}

set http [new_CkHttp]

CkHttp_put_AuthToken $http [CkJsonObject_stringOf $jsonToken "access_token"]

# Build a Google Calendar event:
set json [new_CkJsonObject]

CkJsonObject_put_EmitCompact $json 0
CkJsonObject_UpdateString $json "kind" "calendar#event"
CkJsonObject_UpdateString $json "summary" "Eat Lou Malnati's Pizza"
CkJsonObject_UpdateString $json "start.dateTime" "2021-03-12T12:00:00-05:00"
CkJsonObject_UpdateString $json "end.dateTime" "2021-03-12T13:00:00-05:00"

puts [CkJsonObject_emit $json]

# This is the event JSON we'll be sending the HTTP POST:

# {
#   "kind": "calendar#event",
#   "summary": "Eat Lou Malnati's Pizza",
#   "start": {
#     "dateTime": "2021-03-12T12:00:00-05:00"
#   },
#   "end": {
#     "dateTime": "2021-03-12T13:00:00-05:00"
#   }
# }

set url "https://www.googleapis.com/calendar/v3/calendars/{$calendarId}/events"
CkHttp_SetUrlVar $http "calendarId" "primary"
# resp is a CkHttpResponse
set resp [CkHttp_PostJson3 $http $url "application/json" $json]
if {[CkHttp_get_LastMethodSuccess $http] == 0} then {
    puts [CkHttp_lastErrorText $http]
    delete_CkJsonObject $jsonToken
    delete_CkHttp $http
    delete_CkJsonObject $json
    exit
}

set jsonResp [new_CkJsonObject]

CkJsonObject_put_EmitCompact $jsonResp 0
CkJsonObject_Load $jsonResp [CkHttpResponse_bodyStr $resp]

if {[CkHttpResponse_get_StatusCode $resp] == 200} then {
    # Success.
    # The newly created event resource JSON is returned.
    puts [CkJsonObject_emit $jsonResp]
} else {
    if {[CkHttpResponse_get_StatusCode $resp] == 401} then {
        puts "Try refreshing the access token and then retry..."
    }

    # Failed. 
    # Show the JSON error response.
    puts [CkJsonObject_emit $jsonResp]
}

delete_CkHttpResponse $resp

# A successful response body:

# {
#   "kind": "calendar#event",
#   "etag": "\"3004969011208000\"",
#   "id": "v7kvmsvsoms3hjl5uq423jqhb0",
#   "status": "confirmed",
#   "htmlLink": "https://www.google.com/calendar/event?eid=djdrdm1zdnNvbXMzaGpsNXVxNDIzanFoYjAgc3VwcG9ydEBjaGlsa2F0Y2xvdWQuY29t",
#   "created": "2017-08-11T20:48:25.000Z",
#   "updated": "2017-08-11T20:48:25.604Z",
#   "summary": "Eat Lou Malnati's Pizza",
#   "creator": {
#     "email": "support@chilkatcloud.com",
#     "self": true
#   },
#   "organizer": {
#     "email": "support@chilkatcloud.com",
#     "self": true
#   },
#   "start": {
#     "dateTime": "2017-08-12T12:00:00-05:00"
#   },
#   "end": {
#     "dateTime": "2017-08-12T13:00:00-05:00"
#   },
#   "iCalUID": "v7kvmsvsoms3hjl5uq423jqhb0@google.com",
#   "sequence": 0,
#   "hangoutLink": "https://plus.google.com/hangouts/_/chilkatcloud.com/support?hceid=c3VwcG9ydEBjaGlsa2F0Y2xvdWQuY29t.v7kvmsvsoms3hjl5uq423jqhb0",
#   "reminders": {
#     "useDefault": true
#   }
# }

delete_CkJsonObject $jsonToken
delete_CkHttp $http
delete_CkJsonObject $json
delete_CkJsonObject $jsonResp