(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.

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#include <C_CkHttp.h>
#include <C_CkStringBuilder.h>
#include <C_CkHashtable.h>
#include <C_CkJsonObject.h>
#include <C_CkDateTime.h>
#include <C_CkDtObj.h>

void ChilkatSample(void)
    {
    HCkHttp http;
    HCkStringBuilder sbResponse;
    HCkHashtable htFolderMap;
    HCkStringBuilder sbMap;
    const char *folderId;
    BOOL success;
    HCkJsonObject json;
    HCkStringBuilder sbExpression;
    HCkDateTime dt;
    HCkDtObj dtObj;

    // 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 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).

    CkHttp_putAuthToken(http,"MICROSOFT_GRAPH_ACCESS_TOKEN");

    sbResponse = CkStringBuilder_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 = CkHashtable_Create();
    sbMap = CkStringBuilder_Create();
    CkStringBuilder_LoadFile(sbMap,"qa_data/outlook/folderMap.xml","utf-8");
    CkHashtable_AddFromXmlSb(htFolderMap,sbMap);

    // Get the ID for the "/Inbox" folder:
    folderId = CkHashtable_lookupStr(htFolderMap,"/Inbox");
    if (CkHashtable_getLastMethodSuccess(htFolderMap) != TRUE) {
        printf("Folder ID not found\n");
        CkHttp_Dispose(http);
        CkStringBuilder_Dispose(sbResponse);
        CkHashtable_Dispose(htFolderMap);
        CkStringBuilder_Dispose(sbMap);
        return;
    }

    success = TRUE;
    json = CkJsonObject_Create();
    CkJsonObject_putEmitCompact(json,FALSE);

    CkHttp_SetUrlVar(http,"folder_id",folderId);
    CkHttp_SetUrlVar(http,"select","subject,from");

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

    // To return the full content of each email, omit the "&select=..." part of the URL.
    success = CkHttp_QuickGetSb(http,"https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}",sbResponse);
    if ((success != TRUE) && (CkHttp_getLastStatus(http) == 0)) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkStringBuilder_Dispose(sbResponse);
        CkHashtable_Dispose(htFolderMap);
        CkStringBuilder_Dispose(sbMap);
        CkJsonObject_Dispose(json);
        return;
    }

    CkJsonObject_LoadSb(json,sbResponse);
    printf("%s\n",CkJsonObject_emit(json));

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

    success = CkHttp_QuickGetSb(http,"https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}",sbResponse);
    if ((success != TRUE) && (CkHttp_getLastStatus(http) == 0)) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkStringBuilder_Dispose(sbResponse);
        CkHashtable_Dispose(htFolderMap);
        CkStringBuilder_Dispose(sbMap);
        CkJsonObject_Dispose(json);
        return;
    }

    CkJsonObject_LoadSb(json,sbResponse);
    printf("%s\n",CkJsonObject_emit(json));

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

    success = CkHttp_QuickGetSb(http,"https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}",sbResponse);
    if ((success != TRUE) && (CkHttp_getLastStatus(http) == 0)) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkStringBuilder_Dispose(sbResponse);
        CkHashtable_Dispose(htFolderMap);
        CkStringBuilder_Dispose(sbMap);
        CkJsonObject_Dispose(json);
        return;
    }

    CkJsonObject_LoadSb(json,sbResponse);
    printf("%s\n",CkJsonObject_emit(json));

    // -----------------------------------------------------------------------------------------------------
    // Only return emails received within the last 24 hours
    sbExpression = CkStringBuilder_Create();

    CkStringBuilder_Append(sbExpression,"receivedDateTime ge ");
    dt = CkDateTime_Create();
    CkDateTime_SetFromCurrentSystemTime(dt);
    CkDateTime_AddDays(dt,-1);
    CkStringBuilder_Append(sbExpression,CkDateTime_getAsTimestamp(dt,FALSE));

    CkHttp_SetUrlVar(http,"filter",CkStringBuilder_getAsString(sbExpression));

    success = CkHttp_QuickGetSb(http,"https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}",sbResponse);
    if ((success != TRUE) && (CkHttp_getLastStatus(http) == 0)) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkStringBuilder_Dispose(sbResponse);
        CkHashtable_Dispose(htFolderMap);
        CkStringBuilder_Dispose(sbMap);
        CkJsonObject_Dispose(json);
        CkStringBuilder_Dispose(sbExpression);
        CkDateTime_Dispose(dt);
        return;
    }

    CkJsonObject_LoadSb(json,sbResponse);
    printf("%s\n",CkJsonObject_emit(json));

    // -----------------------------------------------------------------------------------------------------
    // Only return emails received in October 2016
    dtObj = CkDtObj_Create();
    CkDtObj_putYear(dtObj,2016);
    CkDtObj_putMonth(dtObj,10);
    CkDtObj_putDay(dtObj,1);
    CkDtObj_putUtc(dtObj,TRUE);
    CkDateTime_SetFromDtObj(dt,dtObj);

    CkStringBuilder_Clear(sbExpression);
    CkStringBuilder_Append(sbExpression,"(receivedDateTime ge ");
    CkStringBuilder_Append(sbExpression,CkDateTime_getAsTimestamp(dt,FALSE));
    CkStringBuilder_Append(sbExpression,") and (receivedDateTime lt ");
    CkDtObj_putMonth(dtObj,11);
    CkDateTime_SetFromDtObj(dt,dtObj);
    CkStringBuilder_Append(sbExpression,CkDateTime_getAsTimestamp(dt,FALSE));
    CkStringBuilder_Append(sbExpression,")");

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

    CkHttp_SetUrlVar(http,"filter",CkStringBuilder_getAsString(sbExpression));

    success = CkHttp_QuickGetSb(http,"https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}",sbResponse);
    if ((success != TRUE) && (CkHttp_getLastStatus(http) == 0)) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkStringBuilder_Dispose(sbResponse);
        CkHashtable_Dispose(htFolderMap);
        CkStringBuilder_Dispose(sbMap);
        CkJsonObject_Dispose(json);
        CkStringBuilder_Dispose(sbExpression);
        CkDateTime_Dispose(dt);
        CkDtObj_Dispose(dtObj);
        return;
    }

    CkJsonObject_LoadSb(json,sbResponse);
    printf("%s\n",CkJsonObject_emit(json));

    // -----------------------------------------------------------------------------------------------------
    // Return unread emails
    CkHttp_SetUrlVar(http,"filter","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) && (CkHttp_getLastStatus(http) == 0)) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkStringBuilder_Dispose(sbResponse);
        CkHashtable_Dispose(htFolderMap);
        CkStringBuilder_Dispose(sbMap);
        CkJsonObject_Dispose(json);
        CkStringBuilder_Dispose(sbExpression);
        CkDateTime_Dispose(dt);
        CkDtObj_Dispose(dtObj);
        return;
    }

    CkJsonObject_LoadSb(json,sbResponse);
    printf("%s\n",CkJsonObject_emit(json));

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

    success = CkHttp_QuickGetSb(http,"https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}",sbResponse);
    if ((success != TRUE) && (CkHttp_getLastStatus(http) == 0)) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkStringBuilder_Dispose(sbResponse);
        CkHashtable_Dispose(htFolderMap);
        CkStringBuilder_Dispose(sbMap);
        CkJsonObject_Dispose(json);
        CkStringBuilder_Dispose(sbExpression);
        CkDateTime_Dispose(dt);
        CkDtObj_Dispose(dtObj);
        return;
    }

    CkJsonObject_LoadSb(json,sbResponse);
    printf("%s\n",CkJsonObject_emit(json));

    // -----------------------------------------------------------------------------------------------------
    // 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
    CkHttp_SetUrlVar(http,"search","Amazon");

    success = CkHttp_QuickGetSb(http,"https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$search={$search}&$select={$select}",sbResponse);
    if ((success != TRUE) && (CkHttp_getLastStatus(http) == 0)) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkStringBuilder_Dispose(sbResponse);
        CkHashtable_Dispose(htFolderMap);
        CkStringBuilder_Dispose(sbMap);
        CkJsonObject_Dispose(json);
        CkStringBuilder_Dispose(sbExpression);
        CkDateTime_Dispose(dt);
        CkDtObj_Dispose(dtObj);
        return;
    }

    CkJsonObject_LoadSb(json,sbResponse);
    printf("%s\n",CkJsonObject_emit(json));

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

    success = CkHttp_QuickGetSb(http,"https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$search={$search}&$select={$select}",sbResponse);
    if ((success != TRUE) && (CkHttp_getLastStatus(http) == 0)) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkStringBuilder_Dispose(sbResponse);
        CkHashtable_Dispose(htFolderMap);
        CkStringBuilder_Dispose(sbMap);
        CkJsonObject_Dispose(json);
        CkStringBuilder_Dispose(sbExpression);
        CkDateTime_Dispose(dt);
        CkDtObj_Dispose(dtObj);
        return;
    }

    CkJsonObject_LoadSb(json,sbResponse);
    printf("%s\n",CkJsonObject_emit(json));


    CkHttp_Dispose(http);
    CkStringBuilder_Dispose(sbResponse);
    CkHashtable_Dispose(htFolderMap);
    CkStringBuilder_Dispose(sbMap);
    CkJsonObject_Dispose(json);
    CkStringBuilder_Dispose(sbExpression);
    CkDateTime_Dispose(dt);
    CkDtObj_Dispose(dtObj);

    }