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(Delphi DLL) MS Graph Calendar List EventsRetrieve a list of events in a calendar. The list contains single instance meetings and series masters. For more details, see https://docs.microsoft.com/en-us/graph/api/calendar-list-events?view=graph-rest-1.0
uses Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics, Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, JsonObject, Http; ... procedure TForm1.Button1Click(Sender: TObject); var http: HCkHttp; jsonToken: HCkJsonObject; success: Boolean; strResponse: PWideChar; json: HCkJsonObject; odataContext: PWideChar; i: Integer; count_i: Integer; odataEtag: PWideChar; id: PWideChar; createdDateTime: PWideChar; lastModifiedDateTime: PWideChar; changeKey: PWideChar; originalStartTimeZone: PWideChar; originalEndTimeZone: PWideChar; iCalUId: PWideChar; reminderMinutesBeforeStart: Integer; isReminderOn: Boolean; hasAttachments: Boolean; subject: PWideChar; bodyPreview: PWideChar; importance: PWideChar; sensitivity: PWideChar; isAllDay: Boolean; isCancelled: Boolean; isOrganizer: Boolean; responseRequested: Boolean; seriesMasterId: PWideChar; showAs: PWideChar; v_type: PWideChar; webLink: PWideChar; onlineMeetingUrl: PWideChar; recurrence: PWideChar; responseStatusResponse: PWideChar; responseStatusTime: PWideChar; bodyContentType: PWideChar; bodyContent: PWideChar; startDateTime: PWideChar; startTimeZone: PWideChar; endDateTime: PWideChar; endTimeZone: PWideChar; locationDisplayName: PWideChar; locationLocationType: PWideChar; locationUniqueId: PWideChar; locationUniqueIdType: PWideChar; organizerEmailAddressName: PWideChar; organizerEmailAddressAddress: PWideChar; j: Integer; count_j: Integer; displayName: PWideChar; locationType: PWideChar; uniqueId: PWideChar; uniqueIdType: PWideChar; statusResponse: PWideChar; statusTime: PWideChar; emailAddressName: PWideChar; emailAddressAddress: PWideChar; begin // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. http := CkHttp_Create(); // Use your previously obtained access token as shown here: // Get Microsoft Graph OAuth2 Access Token with Calendars.ReadWrite scope. jsonToken := CkJsonObject_Create(); success := CkJsonObject_LoadFile(jsonToken,'qa_data/tokens/msGraphCalendar.json'); if (success = False) then begin Memo1.Lines.Add(CkJsonObject__lastErrorText(jsonToken)); Exit; end; CkHttp_putAuthToken(http,CkJsonObject__stringOf(jsonToken,'access_token')); // Specify the calendar id CkHttp_SetUrlVar(http,'id','AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEGAAAA5_vF7TKKdE6bGCRqXyl2PQAClEpRTgAAAA=='); // Send a GET request to https://graph.microsoft.com/v1.0/me/calendars/{$id}/events strResponse := CkHttp__quickGetStr(http,'https://graph.microsoft.com/v1.0/me/calendars/{$id}/events'); if (CkHttp_getLastMethodSuccess(http) = False) then begin Memo1.Lines.Add(CkHttp__lastErrorText(http)); Exit; end; json := CkJsonObject_Create(); CkJsonObject_Load(json,strResponse); CkJsonObject_putEmitCompact(json,False); if (CkHttp_getLastStatus(http) <> 200) then begin Memo1.Lines.Add(CkJsonObject__emit(json)); Memo1.Lines.Add('Failed, response status code = ' + IntToStr(CkHttp_getLastStatus(http))); Exit; end; Memo1.Lines.Add(CkJsonObject__emit(json)); // Sample output: // (See parsing code below..) // { // "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('admin%40chilkat.io')/calendars('AQMkADAwATM0MDAAMS1i ... AClEpRTgAAAA%3D%3D')/events", // "value": [ // { // "@odata.etag": "W/\"5+vF7TKKdE6bGCRqXyl2PQAClIgmmw==\"", // "id": "AQMkADAwATM0MDAAM ... AApRZ7JkAAAA=", // "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": "040000008200E ... A230FEBFE5F7486A", // "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=AQMkADAwATM0MDAAMS1iNTcwLWI2NT ... gkal8pdj0AApRZ7JkAAAA%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": "2019-11-15T20:00:00.0000000", // "timeZone": "UTC" // }, // "end": { // "dateTime": "2019-11-15T22:00:00.0000000", // "timeZone": "UTC" // }, // "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 := CkJsonObject__stringOf(json,'"@odata.context"'); i := 0; count_i := CkJsonObject_SizeOfArray(json,'value'); while i < count_i do begin CkJsonObject_putI(json,i); odataEtag := CkJsonObject__stringOf(json,'value[i]."@odata.etag"'); id := CkJsonObject__stringOf(json,'value[i].id'); createdDateTime := CkJsonObject__stringOf(json,'value[i].createdDateTime'); lastModifiedDateTime := CkJsonObject__stringOf(json,'value[i].lastModifiedDateTime'); changeKey := CkJsonObject__stringOf(json,'value[i].changeKey'); originalStartTimeZone := CkJsonObject__stringOf(json,'value[i].originalStartTimeZone'); originalEndTimeZone := CkJsonObject__stringOf(json,'value[i].originalEndTimeZone'); iCalUId := CkJsonObject__stringOf(json,'value[i].iCalUId'); reminderMinutesBeforeStart := CkJsonObject_IntOf(json,'value[i].reminderMinutesBeforeStart'); isReminderOn := CkJsonObject_BoolOf(json,'value[i].isReminderOn'); hasAttachments := CkJsonObject_BoolOf(json,'value[i].hasAttachments'); subject := CkJsonObject__stringOf(json,'value[i].subject'); bodyPreview := CkJsonObject__stringOf(json,'value[i].bodyPreview'); importance := CkJsonObject__stringOf(json,'value[i].importance'); sensitivity := CkJsonObject__stringOf(json,'value[i].sensitivity'); isAllDay := CkJsonObject_BoolOf(json,'value[i].isAllDay'); isCancelled := CkJsonObject_BoolOf(json,'value[i].isCancelled'); isOrganizer := CkJsonObject_BoolOf(json,'value[i].isOrganizer'); responseRequested := CkJsonObject_BoolOf(json,'value[i].responseRequested'); seriesMasterId := CkJsonObject__stringOf(json,'value[i].seriesMasterId'); showAs := CkJsonObject__stringOf(json,'value[i].showAs'); v_type := CkJsonObject__stringOf(json,'value[i].type'); webLink := CkJsonObject__stringOf(json,'value[i].webLink'); onlineMeetingUrl := CkJsonObject__stringOf(json,'value[i].onlineMeetingUrl'); recurrence := CkJsonObject__stringOf(json,'value[i].recurrence'); responseStatusResponse := CkJsonObject__stringOf(json,'value[i].responseStatus.response'); responseStatusTime := CkJsonObject__stringOf(json,'value[i].responseStatus.time'); bodyContentType := CkJsonObject__stringOf(json,'value[i].body.contentType'); bodyContent := CkJsonObject__stringOf(json,'value[i].body.content'); startDateTime := CkJsonObject__stringOf(json,'value[i].start.dateTime'); startTimeZone := CkJsonObject__stringOf(json,'value[i].start.timeZone'); endDateTime := CkJsonObject__stringOf(json,'value[i].end.dateTime'); endTimeZone := CkJsonObject__stringOf(json,'value[i].end.timeZone'); locationDisplayName := CkJsonObject__stringOf(json,'value[i].location.displayName'); locationLocationType := CkJsonObject__stringOf(json,'value[i].location.locationType'); locationUniqueId := CkJsonObject__stringOf(json,'value[i].location.uniqueId'); locationUniqueIdType := CkJsonObject__stringOf(json,'value[i].location.uniqueIdType'); organizerEmailAddressName := CkJsonObject__stringOf(json,'value[i].organizer.emailAddress.name'); organizerEmailAddressAddress := CkJsonObject__stringOf(json,'value[i].organizer.emailAddress.address'); j := 0; count_j := CkJsonObject_SizeOfArray(json,'value[i].categories'); while j < count_j do begin CkJsonObject_putJ(json,j); // ... j := j + 1; end; j := 0; count_j := CkJsonObject_SizeOfArray(json,'value[i].locations'); while j < count_j do begin CkJsonObject_putJ(json,j); displayName := CkJsonObject__stringOf(json,'value[i].locations[j].displayName'); locationType := CkJsonObject__stringOf(json,'value[i].locations[j].locationType'); uniqueId := CkJsonObject__stringOf(json,'value[i].locations[j].uniqueId'); uniqueIdType := CkJsonObject__stringOf(json,'value[i].locations[j].uniqueIdType'); j := j + 1; end; j := 0; count_j := CkJsonObject_SizeOfArray(json,'value[i].attendees'); while j < count_j do begin CkJsonObject_putJ(json,j); v_type := CkJsonObject__stringOf(json,'value[i].attendees[j].type'); statusResponse := CkJsonObject__stringOf(json,'value[i].attendees[j].status.response'); statusTime := CkJsonObject__stringOf(json,'value[i].attendees[j].status.time'); emailAddressName := CkJsonObject__stringOf(json,'value[i].attendees[j].emailAddress.name'); emailAddressAddress := CkJsonObject__stringOf(json,'value[i].attendees[j].emailAddress.address'); j := j + 1; end; i := i + 1; end; Memo1.Lines.Add('Success.'); CkHttp_Dispose(http); CkJsonObject_Dispose(jsonToken); CkJsonObject_Dispose(json); end; |
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