Pascal (Lazarus/Delphi)
Pascal (Lazarus/Delphi)
MS Graph Calendar Create Event
See more Microsoft Calendar Examples
Creates a new event in a specified calendar.For more details, see https://docs.microsoft.com/en-us/graph/api/calendar-post-events?view=graph-rest-1.0
Chilkat Pascal (Lazarus/Delphi) Downloads
program ChilkatDemo;
// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.
{$IFDEF FPC}
{$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}
uses
{$IFDEF UNIX}
cthreads,
{$ENDIF}
SysUtils,
CkDllLoader,
Chilkat.Http,
Chilkat.HttpResponse,
Chilkat.JsonObject;
// ---------------------------------------------------------------------------
procedure RunDemo;
var
success: Boolean;
http: THttp;
jsonToken: TJsonObject;
json: TJsonObject;
resp: THttpResponse;
displayName: string;
locationType: string;
uniqueId: string;
uniqueIdType: string;
statusResponse: string;
statusTime: string;
emailAddressName: string;
emailAddressAddress: string;
odataContext: string;
odataEtag: string;
id: string;
createdDateTime: string;
lastModifiedDateTime: string;
changeKey: string;
originalStartTimeZone: string;
originalEndTimeZone: string;
iCalUId: string;
reminderMinutesBeforeStart: string;
isReminderOn: string;
hasAttachments: string;
subject: string;
bodyPreview: string;
importance: string;
sensitivity: string;
isAllDay: string;
isCancelled: string;
isOrganizer: string;
responseRequested: string;
seriesMasterId: string;
showAs: string;
type: string;
webLink: string;
onlineMeetingUrl: string;
recurrence: string;
responseStatusResponse: string;
responseStatusTime: string;
bodyContentType: string;
bodyContent: string;
startDateTime: string;
startTimeZone: string;
endDateTime: string;
endTimeZone: string;
locationDisplayName: string;
locationLocationType: string;
locationUniqueId: string;
locationUniqueIdType: string;
organizerEmailAddressName: string;
organizerEmailAddressAddress: string;
i: Integer;
count_i: Integer;
begin
success := False;
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
http := THttp.Create;
// Use your previously obtained access token as shown here:
// Get Microsoft Graph OAuth2 Access Token with Calendars.ReadWrite scope.
jsonToken := TJsonObject.Create;
success := jsonToken.LoadFile('qa_data/tokens/msGraphCalendar.json');
if (success = False) then
begin
WriteLn(jsonToken.LastErrorText);
Exit;
end;
http.AuthToken := jsonToken.StringOf('access_token');
// Create a JSON body for the HTTP POST
// Use this online tool to generate the code from sample JSON:
// Generate Code to Create JSON
// {
// "subject": "Let's go for lunch",
// "body": {
// "contentType": "HTML",
// "content": "Does mid month work for you?"
// },
// "start": {
// "dateTime": "2019-11-15T12:00:00",
// "timeZone": "Pacific Standard Time"
// },
// "end": {
// "dateTime": "2019-11-15T14:00:00",
// "timeZone": "Pacific Standard Time"
// },
// "location":{
// "displayName":"Harry's Bar"
// },
// "attendees": [
// {
// "emailAddress": {
// "address":"adelev@contoso.onmicrosoft.com",
// "name": "Adele Vance"
// },
// "type": "required"
// }
// ]
// }
json := TJsonObject.Create;
json.UpdateString('subject','Let''s go for lunch');
json.UpdateString('body.contentType','HTML');
json.UpdateString('body.content','Does mid month work for you?');
json.UpdateString('start.dateTime','2019-11-15T12:00:00');
json.UpdateString('start.timeZone','Pacific Standard Time');
json.UpdateString('end.dateTime','2019-11-15T14:00:00');
json.UpdateString('end.timeZone','Pacific Standard Time');
json.UpdateString('location.displayName','Harry''s Bar');
json.UpdateString('attendees[0].emailAddress.address','adelev@contoso.onmicrosoft.com');
json.UpdateString('attendees[0].emailAddress.name','Adele Vance');
json.UpdateString('attendees[0].type','required');
// POST the JSON to https://graph.microsoft.com/v1.0/me/calendars/{id}/events
// This is posting to a calendar in the default calendarGroup.
// Specify the calendar id
http.SetUrlVar('id','AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEGAAAA5_vF7TKKdE6bGCRqXyl2PQAClEpRTgAAAA==');
resp := THttpResponse.Create;
success := http.HttpJson('POST','https://graph.microsoft.com/v1.0/me/calendars/{$id}/events',json,'application/json',resp);
if (success = False) then
begin
WriteLn(http.LastErrorText);
Exit;
end;
json.Load(resp.BodyStr);
json.EmitCompact := False;
if (resp.StatusCode <> 201) then
begin
WriteLn(json.Emit());
WriteLn('Failed, response status code = ' + resp.StatusCode);
Exit;
end;
WriteLn(json.Emit());
// A sample response:
// (See code for parsing this response below..)
// {
// "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('admin%40chilkat.io')/calendars('AQMkADAwATM0MDAAMS ... AClEpRTgAAAA%3D%3D')/events/$entity",
// "@odata.etag": "W/\"5+vF7TKKdE6bGCRqXyl2PQAClIgmmw==\"",
// "id": "AQMkADAwAT ... ApRZ7JkAAAA=",
// "createdDateTime": "2019-04-26T14:31:39.8791929Z",
// "lastModifiedDateTime": "2019-04-26T14:31:41.2753537Z",
// "changeKey": "5+vF7TKKdE6bGCRqXyl2PQAClIgmmw==",
// "categories": [
// ],
// "originalStartTimeZone": "Pacific Standard Time",
// "originalEndTimeZone": "Pacific Standard Time",
// "iCalUId": "040000008200E00074C5B7101A82E00800000000F05DF1C23CFCD40100000000000000001000000009911D155F71EF42A230FEBFE5F7486A",
// "reminderMinutesBeforeStart": 15,
// "isReminderOn": true,
// "hasAttachments": false,
// "subject": "Let's go for lunch",
// "bodyPreview": "Does mid month work for you?",
// "importance": "normal",
// "sensitivity": "normal",
// "isAllDay": false,
// "isCancelled": false,
// "isOrganizer": true,
// "responseRequested": true,
// "seriesMasterId": null,
// "showAs": "busy",
// "type": "singleInstance",
// "webLink": "https://outlook.live.com/owa/?itemid=AQMkADAwATM0MDAAMS1iNTcwL...pRZ7JkAAAA%3D&exvsurl=1&path=/calendar/item",
// "onlineMeetingUrl": null,
// "recurrence": null,
// "responseStatus": {
// "response": "organizer",
// "time": "0001-01-01T00:00:00Z"
// },
// "body": {
// "contentType": "html",
// "content": "<html>\r\n<head>\r\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">\r\n<meta content=\"text/html; charset=us-ascii\">\r\n</head>\r\n<body>\r\nDoes mid month work for you?\r\n</body>\r\n</html>\r\n"
// },
// "start": {
// "dateTime": "2019-11-15T12:00:00.0000000",
// "timeZone": "Pacific Standard Time"
// },
// "end": {
// "dateTime": "2019-11-15T14:00:00.0000000",
// "timeZone": "Pacific Standard Time"
// },
// "location": {
// "displayName": "Harry's Bar",
// "locationType": "default",
// "uniqueId": "Harry's Bar",
// "uniqueIdType": "private"
// },
// "locations": [
// {
// "displayName": "Harry's Bar",
// "locationType": "default",
// "uniqueId": "Harry's Bar",
// "uniqueIdType": "private"
// }
// ],
// "attendees": [
// {
// "type": "required",
// "status": {
// "response": "none",
// "time": "0001-01-01T00:00:00Z"
// },
// "emailAddress": {
// "name": "Adele Vance",
// "address": "adelev@contoso.onmicrosoft.com"
// }
// }
// ],
// "organizer": {
// "emailAddress": {
// "name": "Matt",
// "address": "outlook_3A33FCEB9B74CC15@outlook.com"
// }
// }
// }
//
//
// Use this online tool to generate parsing code from sample JSON:
// Generate Parsing Code from JSON
odataContext := json.StringOf('"@odata.context"');
odataEtag := json.StringOf('"@odata.etag"');
id := json.StringOf('id');
createdDateTime := json.StringOf('createdDateTime');
lastModifiedDateTime := json.StringOf('lastModifiedDateTime');
changeKey := json.StringOf('changeKey');
originalStartTimeZone := json.StringOf('originalStartTimeZone');
originalEndTimeZone := json.StringOf('originalEndTimeZone');
iCalUId := json.StringOf('iCalUId');
reminderMinutesBeforeStart := json.IntOf('reminderMinutesBeforeStart');
isReminderOn := json.BoolOf('isReminderOn');
hasAttachments := json.BoolOf('hasAttachments');
subject := json.StringOf('subject');
bodyPreview := json.StringOf('bodyPreview');
importance := json.StringOf('importance');
sensitivity := json.StringOf('sensitivity');
isAllDay := json.BoolOf('isAllDay');
isCancelled := json.BoolOf('isCancelled');
isOrganizer := json.BoolOf('isOrganizer');
responseRequested := json.BoolOf('responseRequested');
seriesMasterId := json.StringOf('seriesMasterId');
showAs := json.StringOf('showAs');
type := json.StringOf('type');
webLink := json.StringOf('webLink');
onlineMeetingUrl := json.StringOf('onlineMeetingUrl');
recurrence := json.StringOf('recurrence');
responseStatusResponse := json.StringOf('responseStatus.response');
responseStatusTime := json.StringOf('responseStatus.time');
bodyContentType := json.StringOf('body.contentType');
bodyContent := json.StringOf('body.content');
startDateTime := json.StringOf('start.dateTime');
startTimeZone := json.StringOf('start.timeZone');
endDateTime := json.StringOf('end.dateTime');
endTimeZone := json.StringOf('end.timeZone');
locationDisplayName := json.StringOf('location.displayName');
locationLocationType := json.StringOf('location.locationType');
locationUniqueId := json.StringOf('location.uniqueId');
locationUniqueIdType := json.StringOf('location.uniqueIdType');
organizerEmailAddressName := json.StringOf('organizer.emailAddress.name');
organizerEmailAddressAddress := json.StringOf('organizer.emailAddress.address');
i := 0;
count_i := json.SizeOfArray('categories');
while i < count_i do
begin
json.I := i;
// ...
i := i + 1;
end;
i := 0;
count_i := json.SizeOfArray('locations');
while i < count_i do
begin
json.I := i;
displayName := json.StringOf('locations[i].displayName');
locationType := json.StringOf('locations[i].locationType');
uniqueId := json.StringOf('locations[i].uniqueId');
uniqueIdType := json.StringOf('locations[i].uniqueIdType');
i := i + 1;
end;
i := 0;
count_i := json.SizeOfArray('attendees');
while i < count_i do
begin
json.I := i;
type := json.StringOf('attendees[i].type');
statusResponse := json.StringOf('attendees[i].status.response');
statusTime := json.StringOf('attendees[i].status.time');
emailAddressName := json.StringOf('attendees[i].emailAddress.name');
emailAddressAddress := json.StringOf('attendees[i].emailAddress.address');
i := i + 1;
end;
WriteLn('Success.');
http.Free;
jsonToken.Free;
json.Free;
resp.Free;
end;
// ---------------------------------------------------------------------------
begin
try
RunDemo;
except
on E: Exception do
WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
end;
WriteLn;
{$IFDEF MSWINDOWS}
WriteLn('Press Enter to exit...');
ReadLn;
{$ENDIF}
end.