WL.backgroundUpload (Windows Store app)

Last modified: March 13, 2015

Makes a call to upload a file to Microsoft OneDrive.

Important note Important

WL.backgroundUpload is supported only for use with Windows Store apps using JavaScript. If you are writing a web app, use WL.upload instead.

Parameters

  • properties

    Required. A JSON object that contains the following properties, which are necessary to make the REST API call.

    Name

    Type

    Description

    Default Value

    path

    string

    Required. The path to the file to upload.

    None

    file_name

    string

    Optional. The name of the file to upload.

    None

    file_input

    Windows.Storage.StorageFile or File

    Optional. The file input object to read the file from.

    None

    stream_input

    Windows.Storage.Streams.IInputStream

    Optional. The file input stream to read the file from.

    None

    overwrite

    boolean or string

    Optional. Indicates whether the uploaded file should overwrite an existing copy. Specify true or "true" to overwrite, false or "false" to not overwrite and for the WL.backgroundUpload method call to fail, or "rename" to not overwrite and enable OneDrive to assign a new name to the uploaded file.

    "false"

  • callback

    Optional. Specifies a callback function that is executed when the REST API call is complete. The callback function takes the API response object as a parameter. The response object exposes the data returned from the Live SDK, or if an error occurs, an error property that contains the error code.

    Note Note

    Although the callback parameter is still supported, we recommend that you use the Promise object instead, which is described later in this topic.

Return value

Returns a Promiseobject. For Windows Store apps using JavaScript, this object's then method accepts callback functions for onSuccess, onError, and onProgress to enable your code to handle a successful, failed, and in-progress call to the corresponding WL.backgroudUpload method, respectively.

Remarks

Note Note

Before calling the WL.backgroundUpload function, your code must call either the WL.init or WL.login function with, at minimum, the required scopes for uploading the corresponding file. If you don't do this, the call to the WL.backgroundUpload function may fail. Also, this requirement applies to each webpage's current session. Therefore, if your app contains multiple webpages, each webpage must follow this requirement.

Example

function uploadFile_onClick() {
    var picker = setupOpenPicker();
    var filePickOp = picker.pickSingleFileAsync().then(
        function (file) {
            WL.login({
                scope: "wl.skydrive_update"
            }).then(
                function (response) {
                    WL.backgroundUpload({
                        path: "me/skydrive",
                        file_name: file.fileName,
                        file_input: file,
                        overwrite: "rename"
                    }).then(
                       function (response) {
                           document.getElementById("infoLabel").innerText = "Uploaded file.";
                       },
                       function (responseFailed) {
                           document.getElementById("infoLabel").innerText =
                               "Error calling API: " + responseFailed.error.message;
                       }
                    );
                },
                function (responseFailed) {
                    document.getElementById("infoLabel").innerText =
                        "Error signing in: " + responseFailed.error.message;
                }
            );
        },
        function (fileFailed) {
            document.getElementById("infoLabel").innerText = "Cannot upload file.";
        }
    );
}

function setupOpenPicker() {
    var openpicker = new Windows.Storage.Pickers.FileOpenPicker();
    openpicker.fileTypeFilter.replaceAll(["*"]);
    return openpicker;
}

Requirements

Library

Wl.js

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