(Unicode C++) Outlook -- Search Messages in a Particular Folder

Demonstrates search the messages in a particular Outlook mailbox folder.

This uses the OData $filter and $search system query options. See OData System Query Options for general information.

Also see OData URL Conventions for information about $filter, $search and other query options.

This example demonstrates the following searches:

Find emails from a particular email address.
Find emails where the subject contains a particular word or phrase.
Using an "AND" expression.
Find emails received in the last 24 hours.
Find emails received in October 2016
Find unread emails
Find emails containing a particular phrase in the body.
Free-text search of a keyword or phrase.
Free-text search of an email address.

Note: This example requires Chilkat v9.5.0.68 or greater.

Chilkat C/C++ Library Downloads

MS Visual C/C++

Linux/CentOS C/C++

Alpine Linux C/C++

MAC OS X C/C++

armhf/aarch64 C/C++

C++ Builder

iOS C/C++

Android C/C++

Solaris C/C++

MinGW C/C++

#include <CkHttpW.h>
#include <CkStringBuilderW.h>
#include <CkHashtableW.h>
#include <CkJsonObjectW.h>
#include <CkDateTimeW.h>
#include <CkDtObjW.h>

void ChilkatSample(void)
    {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkHttpW http;

    // 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.put_AuthToken(L"MICROSOFT_GRAPH_ACCESS_TOKEN");

    CkStringBuilderW sbResponse;

    // 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)
    CkHashtableW htFolderMap;
    CkStringBuilderW sbMap;
    sbMap.LoadFile(L"qa_data/outlook/folderMap.xml",L"utf-8");
    htFolderMap.AddFromXmlSb(sbMap);

    // Get the ID for the "/Inbox" folder:
    const wchar_t *folderId = htFolderMap.lookupStr(L"/Inbox");
    if (htFolderMap.get_LastMethodSuccess() != true) {
        wprintf(L"Folder ID not found\n");
        return;
    }

    bool success = true;
    CkJsonObjectW json;
    json.put_EmitCompact(false);

    http.SetUrlVar(L"folder_id",folderId);
    http.SetUrlVar(L"select",L"subject,from");

    // -----------------------------------------------------------------------------------------------------
    // Only return emails from "chilkat.support@gmail.com"
    http.SetUrlVar(L"filter",L"from/emailAddress/address eq 'chilkat.support@gmail.com'");

    // To return the full content of each email, omit the "&select=..." part of the URL.
    success = http.QuickGetSb(L"https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}",sbResponse);
    if ((success != true) && (http.get_LastStatus() == 0)) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    json.LoadSb(sbResponse);
    wprintf(L"%s\n",json.emit());

    // -----------------------------------------------------------------------------------------------------
    // Only return emails where the subject contains "Amazon"
    http.SetUrlVar(L"filter",L"contains(subject,'Amazon')");

    success = http.QuickGetSb(L"https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}",sbResponse);
    if ((success != true) && (http.get_LastStatus() == 0)) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    json.LoadSb(sbResponse);
    wprintf(L"%s\n",json.emit());

    // -----------------------------------------------------------------------------------------------------
    // Only return emails where the subject starts with "this email" and the from address is support@chilkatsoft.com
    // (the startswith function is case insensitive)
    http.SetUrlVar(L"filter",L"startswith(subject,'this email') and (from/emailAddress/address eq 'support@chilkatsoft.com')");

    success = http.QuickGetSb(L"https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}",sbResponse);
    if ((success != true) && (http.get_LastStatus() == 0)) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    json.LoadSb(sbResponse);
    wprintf(L"%s\n",json.emit());

    // -----------------------------------------------------------------------------------------------------
    // Only return emails received within the last 24 hours
    CkStringBuilderW sbExpression;

    sbExpression.Append(L"receivedDateTime ge ");
    CkDateTimeW dt;
    dt.SetFromCurrentSystemTime();
    dt.AddDays(-1);
    sbExpression.Append(dt.getAsTimestamp(false));

    http.SetUrlVar(L"filter",sbExpression.getAsString());

    success = http.QuickGetSb(L"https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}",sbResponse);
    if ((success != true) && (http.get_LastStatus() == 0)) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    json.LoadSb(sbResponse);
    wprintf(L"%s\n",json.emit());

    // -----------------------------------------------------------------------------------------------------
    // Only return emails received in October 2016
    CkDtObjW dtObj;
    dtObj.put_Year(2016);
    dtObj.put_Month(10);
    dtObj.put_Day(1);
    dtObj.put_Utc(true);
    dt.SetFromDtObj(dtObj);

    sbExpression.Clear();
    sbExpression.Append(L"(receivedDateTime ge ");
    sbExpression.Append(dt.getAsTimestamp(false));
    sbExpression.Append(L") and (receivedDateTime lt ");
    dtObj.put_Month(11);
    dt.SetFromDtObj(dtObj);
    sbExpression.Append(dt.getAsTimestamp(false));
    sbExpression.Append(L")");

    // This is the expression we just built:  (receivedDateTime ge 2016-10-01T00:00:00Z) and (receivedDateTime lt 2016-11-01T00:00:00Z)
    wprintf(L"%s\n",sbExpression.getAsString());

    http.SetUrlVar(L"filter",sbExpression.getAsString());

    success = http.QuickGetSb(L"https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}",sbResponse);
    if ((success != true) && (http.get_LastStatus() == 0)) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    json.LoadSb(sbResponse);
    wprintf(L"%s\n",json.emit());

    // -----------------------------------------------------------------------------------------------------
    // Return unread emails
    http.SetUrlVar(L"filter",L"isRead eq false");

    // success = http.QuickGetSb("https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}",sbResponse);
    if ((success != true) && (http.get_LastStatus() == 0)) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    json.LoadSb(sbResponse);
    wprintf(L"%s\n",json.emit());

    // -----------------------------------------------------------------------------------------------------
    // Return emails with a plain-text or HTML body containing the phrase "Outlook 365"
    http.SetUrlVar(L"filter",L"contains(body/content,'Outlook 365')");

    success = http.QuickGetSb(L"https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}",sbResponse);
    if ((success != true) && (http.get_LastStatus() == 0)) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    json.LoadSb(sbResponse);
    wprintf(L"%s\n",json.emit());

    // -----------------------------------------------------------------------------------------------------
    // Use the $search query option instead of $filter.
    // $search is a free-text search over whatever fields the server deems appropriate, such as in the subject,
    // body, address fields, etc.

    // Search for the word Amazon
    http.SetUrlVar(L"search",L"Amazon");

    success = http.QuickGetSb(L"https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$search={$search}&$select={$select}",sbResponse);
    if ((success != true) && (http.get_LastStatus() == 0)) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    json.LoadSb(sbResponse);
    wprintf(L"%s\n",json.emit());

    // -----------------------------------------------------------------------------------------------------
    // Search for chilkatsoft.com
    // Some chars, such as the "." make it necessary to enclose the search expression in double-quotes.
    http.SetUrlVar(L"search",L"\"chilkatsoft.com\"");

    success = http.QuickGetSb(L"https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$search={$search}&$select={$select}",sbResponse);
    if ((success != true) && (http.get_LastStatus() == 0)) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    json.LoadSb(sbResponse);
    wprintf(L"%s\n",json.emit());
    }