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MFC Examples

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(MFC) OneDrive -- Streaming File Upload

Uploads a local file by path to the signed-in user's OneDrive. This uses OneDrive's simple upload API to upload in a single API call. Uploading in this way only supports files up to 4MB in size. (See the other example(s) for uploading larger files.)

Note: This example requires Chilkat v9.5.0.68 or greater.

Chilkat C/C++ Library Downloads

MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkHttp.h>
#include <CkHttpRequest.h>
#include <CkHttpResponse.h>
#include <CkJsonObject.h>

void ChilkatSample(void)
    {
    CkString strOut;

    //  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).

    //  (Make sure your token was obtained with the FilesRead or Files.ReadWrite scope.)
    http.put_AuthToken("MICROSOFT_GRAPH_ACCESS_TOKEN");

    //  To upload in a single HTTP request, send a PUT request such as the following:

    //  	PUT /v1.0/users/me/drive/root:/{item-path}:/content
    //  	Content-type: text/plain
    //  	Content-Length: <the actual content length>
    // 
    //  	The contents of the file goes here.

    //  Note: This example can upload any type of file.
    //  Chilkat automatically adds the Content-Length header.

    CkHttpRequest req;
    req.put_HttpVerb("PUT");
    req.put_Path("/v1.0/users/me/drive/root:/someFolder/penguins.jpg:/content");
    //  Indicate the local file to be streamed in the upload.
    req.StreamBodyFromFile("qa_data/jpg/penguins.jpg");
    //  If you're uploading a file and don't know what the Content-Type should be,
    //  just use "application/octet-stream".  See below for an example..
    req.put_ContentType("image/jpeg");

    CkHttpResponse *resp = http.SynchronousRequest("graph.microsoft.com",443,true,req);
    if (http.get_LastMethodSuccess() != true) {
        strOut.append(http.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    //  If successful, a 201 status code is returned, with the driveItem object in the response body for the newly created file.
    CkJsonObject json;
    json.put_EmitCompact(false);
    json.Load(resp->bodyStr());

    if (resp->get_StatusCode() != 201) {

        //  Here is an example of an error:

        //  		{
        //  		  "error": {
        //  		    "code": "nameAlreadyExists",
        //  		    "message": "An item with the same name already exists under the parent",
        //  		    "innerError": {
        //  		      "request-id": "22302ba5-b885-4b67-9e20-8f6801aec372",
        //  		      "date": "2017-06-03T14:22:27"
        //  		    }
        //  		  }
        //  		}
        // 
        //  		Response status = 409

        strOut.append(json.emit());
        strOut.append("\r\n");
        strOut.append("Response status = ");
        strOut.appendInt(resp->get_StatusCode());
        strOut.append("\r\n");
        delete resp;
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    delete resp;

    //  Success.  Examine the driveItem JSON object:
    strOut.append(json.emit());
    strOut.append("\r\n");
    strOut.append("-- Success --");
    strOut.append("\r\n");

    //  Here is a sample successful response:

    //  	{
    //  	  "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('me')/drive/root/$entity",
    //  	  "@microsoft.graph.downloadUrl": "https://s5ucmg.dm2301.livefilestore.com/y4p0MT4NGBshn3EMBjrq8NuU3c_3Bt4DBz0BjZiQPNhiCDj3DjXEHrMr71M6wAGRrvT6WJmPIqNo_lxBP4Uen5MXFVtO3Dz_tdZ531hC_J9fb-eU6CoEmvjonwapmTorJb6hbi6g8VNxBQLItDyVgWM-InmxoNRo0N6xpcAuIbKZccN5vuctIs-Wqxefaza19thlu__bOl8kfG_SkgsrbBzKdTjOS0phBhIi8kYo9wG25k",
    //  	  "createdBy": {
    //  	    "application": {
    //  	      "displayName": "Chilkat",
    //  	      "id": "441c9990"
    //  	    },
    //  	    "user": {
    //  	      "displayName": "Matt Murdock",
    //  	      "id": "3a33fceb9b74cc15"
    //  	    }
    //  	  },
    //  	  "createdDateTime": "2017-06-03T14:23:52.153Z",
    //  	  "cTag": "aYzozQTMzRkNFQjlCNzRDQzE1ITQ4NjMuMjU3",
    //  	  "eTag": "aM0EzM0ZDRUI5Qjc0Q0MxNSE0ODYzLjA",
    //  	  "id": "3A33FCEB9B74CC15!4863",
    //  	  "lastModifiedBy": {
    //  	    "application": {
    //  	      "displayName": "Chilkat",
    //  	      "id": "441c9990"
    //  	    },
    //  	    "user": {
    //  	      "displayName": "Matt Murdock",
    //  	      "id": "3a33fceb9b74cc15"
    //  	    }
    //  	  },
    //  	  "lastModifiedDateTime": "2017-06-03T14:23:52.153Z",
    //  	  "name": "penguins.jpg",
    //  	  "parentReference": {
    //  	    "driveId": "3a33fceb9b74cc15",
    //  	    "id": "3A33FCEB9B74CC15!4862",
    //  	    "name": "someFolder",
    //  	    "path": "/drive/root:/someFolder"
    //  	  },
    //  	  "size": 777835,
    //  	  "webUrl": "https://1drv.ms/i/s!ABXMdJvr_DM6pX8",
    //  	  "file": {
    //  	    "hashes": {
    //  	      "sha1Hash": "DF7BE9DC4F467187783ACA68C7CE98E4DF2172D0"
    //  	    },
    //  	    "mimeType": "image/jpeg",
    //  	    "processingMetadata": true
    //  	  },
    //  	  "fileSystemInfo": {
    //  	    "createdDateTime": "2017-06-03T14:23:52.153Z",
    //  	    "lastModifiedDateTime": "2017-06-03T14:23:52.153Z"
    //  	  }
    //  	}

    //  ------------------------------------------------------------------------------------
    //  Now let's upload some file where we don't know what the Content-Type should be.
    // 
    //  In this case, we're uploading the same JPG file but instead of providing "image/jpeg" for the
    //  Content-Type, we provide "application/octet-stream".  ("application/octet-stream" is the general
    //  HTTP content-type used for anything unkown.  "octet" is a synonym for "byte".  It's just a way of
    //  saying: Here's a stream of bytes that comprise the file.)

    //  Also, you'll notice in the successful JSON response (below), that Microsoft automatically
    //  detected the Content-Type as "image/jpeg", because the mimeType is set as such.
    //  It is likely Microsoft set the MIME type (i.e. Content-Type) based on the file extension, or even better
    //  it may have determined the MIME type by examining the initial bytes of the file to find the standard
    //  identifying markers that signify common file types such as PDF, JPG, ZIP, and many more.

    //  In a nutshell:  Don't worry about setting the ContentType precisely. If you know it, great.  If not, just
    //  use "application/octet-stream".

    req.put_HttpVerb("PUT");
    req.put_Path("/v1.0/users/me/drive/root:/someFolder/penguins2.jpg:/content");
    req.StreamBodyFromFile("qa_data/jpg/penguins.jpg");
    req.put_ContentType("application/octet-stream");

    resp = http.SynchronousRequest("graph.microsoft.com",443,true,req);
    if (http.get_LastMethodSuccess() != true) {
        strOut.append(http.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    json.Load(resp->bodyStr());
    if (resp->get_StatusCode() != 201) {
        strOut.append(json.emit());
        strOut.append("\r\n");
        strOut.append("Response status = ");
        strOut.appendInt(resp->get_StatusCode());
        strOut.append("\r\n");
        delete resp;
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    delete resp;

    //  Success.  Examine the driveItem JSON object:
    strOut.append(json.emit());
    strOut.append("\r\n");
    strOut.append("-- Success --");
    strOut.append("\r\n");

    //  	{
    //  	  "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('me')/drive/root/$entity",
    //  	  "@microsoft.graph.downloadUrl": "https://s5ucmg.dm2301.livefilestore.com/y4pKX-VIcxZfOUa1iYzGo7K4dX8an2xkcL7i-bb1YLE2ralUEPAixycWzekSn6-lUl5ojvZLQzpce45pgX2SIZfHe9l9scGcYu1viPHxKQ67Xh5b6iMhQNwbjbPQdr3ez6DET55DL25f7kS-fnksazALBtHiTLYayEqMc3WokdQYPsCj7AtzyNPzgKh6ye9R0FxM6ZRS5y6ARY23dIWuGkAKE9lKLgC4PPjvgNBBvl7zi8",
    //  	  "createdBy": {
    //  	    "application": {
    //  	      "displayName": "Chilkat",
    //  	      "id": "441c9990"
    //  	    },
    //  	    "user": {
    //  	      "displayName": "Matt Murdock",
    //  	      "id": "3a33fceb9b74cc15"
    //  	    }
    //  	  },
    //  	  "createdDateTime": "2017-06-03T14:30:22.017Z",
    //  	  "cTag": "aYzozQTMzRkNFQjlCNzRDQzE1ITQ4NjUuMjU3",
    //  	  "eTag": "aM0EzM0ZDRUI5Qjc0Q0MxNSE0ODY1LjA",
    //  	  "id": "3A33FCEB9B74CC15!4865",
    //  	  "lastModifiedBy": {
    //  	    "application": {
    //  	      "displayName": "Chilkat",
    //  	      "id": "441c9990"
    //  	    },
    //  	    "user": {
    //  	      "displayName": "Matt Murdock",
    //  	      "id": "3a33fceb9b74cc15"
    //  	    }
    //  	  },
    //  	  "lastModifiedDateTime": "2017-06-03T14:30:22.017Z",
    //  	  "name": "penguins2.jpg",
    //  	  "parentReference": {
    //  	    "driveId": "3a33fceb9b74cc15",
    //  	    "id": "3A33FCEB9B74CC15!4862",
    //  	    "name": "someFolder",
    //  	    "path": "/drive/root:/someFolder"
    //  	  },
    //  	  "size": 777835,
    //  	  "webUrl": "https://1drv.ms/i/s!ABXMdJvr_DM6pgE",
    //  	  "file": {
    //  	    "hashes": {
    //  	      "sha1Hash": "DF7BE9DC4F467187783ACA68C7CE98E4DF2172D0"
    //  	    },
    //  	    "mimeType": "image/jpeg",
    //  	    "processingMetadata": true
    //  	  },
    //  	  "fileSystemInfo": {
    //  	    "createdDateTime": "2017-06-03T14:30:22.016Z",
    //  	    "lastModifiedDateTime": "2017-06-03T14:30:22.016Z"
    //  	  }
    //  	}


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }

 

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