(C) OneDrive -- Download Binary File to Memory

See more OneDrive Examples

Note: This example requires Chilkat v9.5.0.97 or greater.

Chilkat C/C++ Library Downloads
MS Visual C/C++ C++ Builder Linux C/C++ Alpine Linux C/C++	MacOS C/C++ iOS C/C++ Android C/C++ MinGW C/C++

#include <C_CkJsonObject.h>
#include <C_CkHttp.h>
#include <C_CkBinData.h>

void ChilkatSample(void)
    {
    HCkJsonObject json;
    HCkHttp http;
    HCkBinData fileData;
    const char *url;
    BOOL success;

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

    // Use your client ID, client secret, and tenant ID in the following lines
    json = CkJsonObject_Create();
    CkJsonObject_UpdateString(json,"client_id","2871da2c-8176-4b7f-869b-2311aa82e743");
    CkJsonObject_UpdateString(json,"client_secret","2hu9Q~r5QuryUcEkNbg1btLtnfU1VUXzhSCG6brH");
    CkJsonObject_UpdateString(json,"scope","https://graph.microsoft.com/.default");
    CkJsonObject_UpdateString(json,"token_endpoint","https://login.microsoftonline.com/114d7ed6-71bf-4dbe-a866-748364121bf2/oauth2/v2.0/token");

    http = CkHttp_Create();
    CkHttp_putAuthToken(http,CkJsonObject_emit(json));

    // Sends the following GET request:
    // GET https://graph.microsoft.com/v1.0/users/{user-id}/drive/root:/{item-path}:/content

    // Make sure to automatically follow redirects
    CkHttp_putFollowRedirects(http,TRUE);

    // This example will download /Misc/starfish.jpg
    CkHttp_SetUrlVar(http,"item_path","Misc/starfish.jpg");
    CkHttp_SetUrlVar(http,"user_id","4fe732c3-322e-4a6b-b729-2fd1eb5c6104");

    fileData = CkBinData_Create();
    url = "https://graph.microsoft.com/v1.0/users/{$user_id}/drive/root:/{$item_path}:/content";
    success = CkHttp_DownloadBd(http,url,fileData);
    if (CkHttp_getLastMethodSuccess(http) != TRUE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkJsonObject_Dispose(json);
        CkHttp_Dispose(http);
        CkBinData_Dispose(fileData);
        return;
    }

    // If the response status code was not 200, then it failed.
    if (CkHttp_getLastStatus(http) != 200) {
        printf("Response Status Code = %d\n",CkHttp_getLastStatus(http));
        printf("Failed.\n");
        CkJsonObject_Dispose(json);
        CkHttp_Dispose(http);
        CkBinData_Dispose(fileData);
        return;
    }

    // If we got here, then the file was successfully downloaded.
    printf("Download binary from OneDrive successful.\n");
    printf("The file is contained in fileData.\n");


    CkJsonObject_Dispose(json);
    CkHttp_Dispose(http);
    CkBinData_Dispose(fileData);

    }