(Unicode 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

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#include <C_CkHttpW.h>
#include <C_CkStringBuilderW.h>
#include <C_CkJsonObjectW.h>

void ChilkatSample(void)
    {
    HCkHttpW http;
    HCkStringBuilderW sbResponse;
    const wchar_t *messageId;
    BOOL success;
    HCkJsonObjectW json;

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

    http = CkHttpW_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).

    CkHttpW_putAuthToken(http,L"MICROSOFT_GRAPH_ACCESS_TOKEN");

    sbResponse = CkStringBuilderW_Create();

    // 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

    CkHttpW_ClearUrlVars(http);
    CkHttpW_SetUrlVar(http,L"userPrincipalName",L"chilkatsoft@outlook.com");

    // Assume we already have a message ID from previously listing the messages in a folder
    messageId = L"AAMkADYzZWE3YmZmLWU0YzgtNGNkZC04MGE1LWFiYTFlNTRlY2QwYQBGAAAAAAAu7cUXL5YOTrdsUIw7-v8FBwBUcG0qWqkmQYqWLHQataQxAACnwqJUAABUcG0qWqkmQYqWLHQataQxAACnwrnOAAA=";
    CkHttpW_SetUrlVar(http,L"message_id",messageId);

    // Send the request to list the messages.
    success = CkHttpW_QuickGetSb(http,L"https://graph.microsoft.com/v1.0/users/{$userPrincipalName}/messages/{$message_id}/attachments",sbResponse);
    if ((success != TRUE) && (CkHttpW_getLastStatus(http) == 0)) {
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkHttpW_Dispose(http);
        CkStringBuilderW_Dispose(sbResponse);
        return;
    }

    json = CkJsonObjectW_Create();
    CkJsonObjectW_LoadSb(json,sbResponse);
    CkJsonObjectW_putEmitCompact(json,FALSE);

    wprintf(L"Status code = %d\n",CkHttpW_getLastStatus(http));
    if (CkHttpW_getLastStatus(http) != 200) {
        wprintf(L"%s\n",CkJsonObjectW_emit(json));
        wprintf(L"Failed.\n");
    }

    CkStringBuilderW_Clear(sbResponse);
    CkJsonObjectW_EmitSb(json,sbResponse);
    CkStringBuilderW_WriteFile(sbResponse,L"qa_output/attachments.txt",L"utf-8",FALSE);

    wprintf(L"OK\n");


    CkHttpW_Dispose(http);
    CkStringBuilderW_Dispose(sbResponse);
    CkJsonObjectW_Dispose(json);

    }