(C++) Outlook -- List Attachments for a Specific Message

Demonstrates how to list the attachments for a particular email message.

Note: This example requires Chilkat v9.5.0.67 or greater.

This example applies to: Exchange Online | Office 365 | Hotmail.com | Live.com | MSN.com | Outlook.com | Passport.com

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 <CkHttp.h>
#include <CkStringBuilder.h>
#include <CkJsonObject.h>

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

    CkHttp 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("MICROSOFT_GRAPH_ACCESS_TOKEN");

    CkStringBuilder sbResponse;

    // Sends:  GET /users/{user_id | userPrincipalName}/messages/{message_id}/attachments
    // Note: It is also possible to use the literal string "me" for the current logged-on user.
    // For example: GET /me/messages/{message_id}/attachments

    http.ClearUrlVars();
    http.SetUrlVar("userPrincipalName","chilkatsoft@outlook.com");

    // Assume we already have a message ID from previously listing the messages in a folder
    const char *messageId = "AAMkADYzZWE3YmZmLWU0YzgtNGNkZC04MGE1LWFiYTFlNTRlY2QwYQBGAAAAAAAu7cUXL5YOTrdsUIw7-v8FBwBUcG0qWqkmQYqWLHQataQxAACnwqJUAABUcG0qWqkmQYqWLHQataQxAACnwrnOAAA=";
    http.SetUrlVar("message_id",messageId);

    // Send the request to list the messages.
    bool success = http.QuickGetSb("https://graph.microsoft.com/v1.0/users/{$userPrincipalName}/messages/{$message_id}/attachments",sbResponse);
    if ((success != true) && (http.get_LastStatus() == 0)) {
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

    CkJsonObject json;
    json.LoadSb(sbResponse);
    json.put_EmitCompact(false);

    std::cout << "Status code = " << http.get_LastStatus() << "\r\n";
    if (http.get_LastStatus() != 200) {
        std::cout << json.emit() << "\r\n";
        std::cout << "Failed." << "\r\n";
    }

    sbResponse.Clear();
    json.EmitSb(sbResponse);
    sbResponse.WriteFile("qa_output/attachments.txt","utf-8",false);

    std::cout << "OK" << "\r\n";
    }