Unicode C

Create a File in a Folder

See more Google Drive Examples

Creates (uploads) a file to be located in a particular folder.

See Google Drive Files: create for more details.

Also See Google Drive Multipart Upload for more details.

Unicode C

#include <C_CkAuthGoogleW.h>
#include <C_CkRestW.h>
#include <C_CkJsonObjectW.h>
#include <C_CkJsonArrayW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkAuthGoogleW gAuth;
    HCkRestW rest;
    BOOL bAutoReconnect;
    HCkJsonObjectW json;
    HCkJsonArrayW parents;
    const wchar_t *folderId;
    const wchar_t *fileContents;
    const wchar_t *jsonResponse;

    success = FALSE;

    success = TRUE;

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

    // This example uses a previously obtained access token having permission for the 
    // Google Drive scope.

    gAuth = CkAuthGoogleW_Create();
    CkAuthGoogleW_putAccessToken(gAuth,L"GOOGLE-DRIVE-ACCESS-TOKEN");

    rest = CkRestW_Create();

    // Connect using TLS.
    bAutoReconnect = TRUE;
    success = CkRestW_Connect(rest,L"www.googleapis.com",443,TRUE,bAutoReconnect);

    // Provide the authentication credentials (i.e. the access token)
    CkRestW_SetAuthGoogle(rest,gAuth);

    // -------------------------------------------------------------------------
    // A multipart upload to Google Drive needs a multipart/related Content-Type
    CkRestW_AddHeader(rest,L"Content-Type",L"multipart/related");

    // Specify each part of the request.

    // The 1st part is JSON with information about the file.
    CkRestW_putPartSelector(rest,L"1");
    CkRestW_AddHeader(rest,L"Content-Type",L"application/json; charset=UTF-8");

    json = CkJsonObjectW_Create();
    CkJsonObjectW_AppendString(json,L"name",L"testHello.txt");
    CkJsonObjectW_AppendString(json,L"description",L"A simple file that says Hello World.");
    CkJsonObjectW_AppendString(json,L"mimeType",L"text/plain");

    // To place the file in a folder, we must add a parents[] array to the JSON
    // and list the folder id's.  It's possible for a file to be in multiple folders at once
    // if it has more than one parent.  If no parents are specified, then the file is created
    // in the My Drive folder.  
    // Note: We'll assume we already have the id if the folder.  It is the id's that are specified here,
    // not the folder names.

    parents = CkJsonArrayW_Create();
    CkJsonObjectW_AppendArray2(json,L"parents",parents);

    folderId = L"0B53Q6OSTWYolY2tPU1BnYW02T2c";
    CkJsonArrayW_AddStringAt(parents,-1,folderId);

    CkRestW_SetMultipartBodyString(rest,CkJsonObjectW_emit(json));

    // The 2nd part is the file content, which will contain "Hello World!"
    CkRestW_putPartSelector(rest,L"2");
    CkRestW_AddHeader(rest,L"Content-Type",L"text/plain");

    fileContents = L"Hello World!";
    CkRestW_SetMultipartBodyString(rest,fileContents);

    jsonResponse = CkRestW_fullRequestMultipart(rest,L"POST",L"/upload/drive/v3/files?uploadType=multipart");
    if (CkRestW_getLastMethodSuccess(rest) == FALSE) {
        wprintf(L"%s\n",CkRestW_lastErrorText(rest));
        CkAuthGoogleW_Dispose(gAuth);
        CkRestW_Dispose(rest);
        CkJsonObjectW_Dispose(json);
        CkJsonArrayW_Dispose(parents);
        return;
    }

    // A successful response will have a status code equal to 200.
    if (CkRestW_getResponseStatusCode(rest) != 200) {
        wprintf(L"response status code = %d\n",CkRestW_getResponseStatusCode(rest));
        wprintf(L"response status text = %s\n",CkRestW_responseStatusText(rest));
        wprintf(L"response header: %s\n",CkRestW_responseHeader(rest));
        wprintf(L"response JSON: %s\n",jsonResponse);
        CkAuthGoogleW_Dispose(gAuth);
        CkRestW_Dispose(rest);
        CkJsonObjectW_Dispose(json);
        CkJsonArrayW_Dispose(parents);
        return;
    }

    // Show the JSON response.
    CkJsonObjectW_Load(json,jsonResponse);

    // Show the full JSON response.
    CkJsonObjectW_putEmitCompact(json,FALSE);
    wprintf(L"%s\n",CkJsonObjectW_emit(json));

    // A successful response looks like this:
    // {
    //   "kind": "drive#file",
    //   "id": "0B53Q6OSTWYoldmJ0Z3ZqT2x5MFk",
    //   "name": "Untitled",
    //   "mimeType": "text/plain"
    // }

    // Get the fileId:
    wprintf(L"fileId: %s\n",CkJsonObjectW_stringOf(json,L"id"));


    CkAuthGoogleW_Dispose(gAuth);
    CkRestW_Dispose(rest);
    CkJsonObjectW_Dispose(json);
    CkJsonArrayW_Dispose(parents);

    }