Pascal (Lazarus/Delphi)
Pascal (Lazarus/Delphi)
Outlook -- List Selected Fields in Messages
See more Outlook Examples
Demonstrates how to list the messages in a particular Outlook mailbox folder, but selects particular fields to be returned.This uses the OData $select system query option. See OData System Query Option $select for general information.
Also see OData URL Conventions for information about $select and other query options.
Note: This example requires Chilkat v9.5.0.68 or greater.
This example applies to: Exchange Online | Office 365 | Hotmail.com | Live.com | MSN.com | Outlook.com | Passport.com
Chilkat Pascal (Lazarus/Delphi) Downloads
program ChilkatDemo;
// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.
{$IFDEF FPC}
{$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}
uses
{$IFDEF UNIX}
cthreads,
{$ENDIF}
SysUtils,
CkDllLoader,
Chilkat.Http,
Chilkat.StringBuilder,
Chilkat.Hashtable,
Chilkat.JsonObject;
// ---------------------------------------------------------------------------
procedure RunDemo;
var
success: Boolean;
http: THttp;
sbResponse: TStringBuilder;
htFolderMap: THashtable;
sbMap: TStringBuilder;
folderId: string;
json: TJsonObject;
i: Integer;
numMessages: Integer;
messageId: string;
begin
success := False;
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
http := THttp.Create;
// Use your previously obtained access token here:
// See the following examples for getting an access token:
// Get Microsoft Graph OAuth2 Access Token (Azure AD v2.0 Endpoint).
// Get Microsoft Graph OAuth2 Access Token (Azure AD Endpoint).
// Refresh Access Token (Azure AD v2.0 Endpoint).
// Refresh Access Token (Azure AD Endpoint).
http.AuthToken := 'MICROSOFT_GRAPH_ACCESS_TOKEN';
sbResponse := TStringBuilder.Create;
// In this example, we'd like to get the messages in the folder "/Inbox",
// but we must specify the corresponding folder_id. The best way to do this is to create
// a local map of folderPaths-to-folderIds.
// This example does it: Create Outlook Folder Map)
htFolderMap := THashtable.Create;
sbMap := TStringBuilder.Create;
sbMap.LoadFile('qa_data/outlook/folderMap.xml','utf-8');
htFolderMap.AddFromXmlSb(sbMap);
// Get the ID for the "/Inbox" folder:
folderId := htFolderMap.LookupStr('/Inbox');
if (htFolderMap.LastMethodSuccess <> True) then
begin
WriteLn('Folder ID not found');
Exit;
end;
http.SetUrlVar('folder_id',folderId);
// Send the request to list the messages, returning only the subject and from address.
success := http.QuickGetSb('https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$select=subject,from',sbResponse);
if ((success <> True) and (http.LastStatus = 0)) then
begin
WriteLn(http.LastErrorText);
Exit;
end;
json := TJsonObject.Create;
json.LoadSb(sbResponse);
json.EmitCompact := False;
WriteLn('Status code = ' + http.LastStatus);
if (http.LastStatus <> 200) then
begin
WriteLn(json.Emit());
WriteLn('Failed.');
end;
WriteLn(json.Emit());
// In my test case, the raw JSON returned is shown below.
// Iterate over the messages to get information about each..
i := 0;
numMessages := json.SizeOfArray('value');
while i < numMessages do
begin
json.I := i;
// This is the id for the email message.
// For REST API calls that require particular email message id, this is what should be used..
messageId := json.StringOf('value[i].id');
WriteLn('id: ' + messageId);
WriteLn('From Name: ' + json.StringOf('value[i].from.emailAddress.name'));
WriteLn('From Addr: ' + json.StringOf('value[i].from.emailAddress.address'));
WriteLn('Subject: ' + json.StringOf('value[i].subject'));
WriteLn('--');
i := i + 1;
end;
// The output of the above loop:
//
// id: AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAAM6Jj1oAAAA=
// From Name: Chilkat Software
// From Addr: admin@chilkat.io
// Subject: This is an example email from chilkat.io
// --
// id: AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAAM6Jj1kAAAA=
// From Name: Chilkat Support
// From Addr: chilkat.support@gmail.com
// Subject: Hello from GMail
// --
// id: AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAAHrLra8AAAA=
// From Name: Microsoft Office 365
// From Addr: MicrosoftOffice365@email.office.com
// Subject: The latest for you in Office 365
// --
// id: AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAADLHd_EAAAA=
// From Name: Amazon Web Services
// From Addr: no-reply-aws@amazon.com
// Subject: Amazon SES Address Verification Request in region US West (Oregon)
// --
// id: AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAADLHd_AAAAA=
// From Name: Amazon Web Services
// From Addr: no-reply-aws@amazon.com
// Subject: Amazon SES Address Verification Request in region US West (Oregon)
// --
// id: AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAAAG6l8UAAAA=
// From Name: Microsoft
// From Addr: msa@communication.microsoft.com
// Subject: Updates to our terms of use and privacy statement
// --
//
// ------------------------------------------------------
// This is the raw JSON response:
// {
// "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('me')/mailFolders('AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA')/messages(subject,from)",
// "value": [
// {
// "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AADOpwfo\"",
// "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAAM6Jj1oAAAA=",
// "subject": "This is an example email from chilkat.io",
// "from": {
// "emailAddress": {
// "name": "Chilkat Software",
// "address": "admin@chilkat.io"
// }
// }
// },
// {
// "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AADOpwfn\"",
// "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAAM6Jj1kAAAA=",
// "subject": "Hello from GMail",
// "from": {
// "emailAddress": {
// "name": "Chilkat Support",
// "address": "chilkat.support@gmail.com"
// }
// }
// },
// {
// "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AAB63d8O\"",
// "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAAHrLra8AAAA=",
// "subject": "The latest for you in Office 365",
// "from": {
// "emailAddress": {
// "name": "Microsoft Office 365",
// "address": "MicrosoftOffice365@email.office.com"
// }
// }
// },
// {
// "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AAA1jyl7\"",
// "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAADLHd_EAAAA=",
// "subject": "Amazon SES Address Verification Request in region US West (Oregon)",
// "from": {
// "emailAddress": {
// "name": "Amazon Web Services",
// "address": "no-reply-aws@amazon.com"
// }
// }
// },
// {
// "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AAA1jyl6\"",
// "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAADLHd_AAAAA=",
// "subject": "Amazon SES Address Verification Request in region US West (Oregon)",
// "from": {
// "emailAddress": {
// "name": "Amazon Web Services",
// "address": "no-reply-aws@amazon.com"
// }
// }
// },
// {
// "@odata.etag": "W/\"CQAAABYAAADn68XtMop0TpsYJGpfKXY9AAAGt5YG\"",
// "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA5_vF7TKKdE6bGCRqXyl2PQAAAAG6l8UAAAA=",
// "subject": "Updates to our terms of use and privacy statement",
// "from": {
// "emailAddress": {
// "name": "Microsoft",
// "address": "msa@communication.microsoft.com"
// }
// }
// }
// ]
// }
http.Free;
sbResponse.Free;
htFolderMap.Free;
sbMap.Free;
json.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.