Set file name when downloading with blob

After clicked the " Select " button on the container list in last step, you are able to operate with the blobs under the selected container. Selected container name:. Click ListBlobs button to view the blobs under your selected container. Click UploadBlob button to upload a local file to current container after selecting a file:. How to get full detailed API definitions? The JavaScript global variable AzureStorage.

Blob is just like the object require 'azure-storage' returns in Node. Go to BlobService to view possible methods provided by BlobService class. However, for security concerns, we recommend use of a limited time SAS Token, generated by a backend web server using a Stored Access Policy.

Warning: By default, the speedSummary. There are 2 default settings that may influence the upload progress display. This means, by default, blobs smaller than 32MB will only get the progress update when the upload is over, and blobs larger than 32MB will update the process every 4MB.

Learn about downloading and installing Oracle Application Express. Restarting Processes Restart the processes that you stopped before you began the installation. To install Oracle Application Express:. Available installation options include: Full development environment. Example: apexins.

This section describes how to create or update your Instance Administrator account. Tip: Skip this section if you are upgrading from a previous release of Oracle Application Express. What Is an Instance Administrator? About apxchpwd. Running apxchpwd. Tip: You do not need to run apxchpwd.

To create or update your Instance Administrator account:. In fact, the File object is a special extension of the Blob interface. Blob objects can be obtained from a couple of sources:. Here are some code samples for the aforementioned blob object sources:. It is one thing to obtain a blob object and another thing altogether to work with it. One thing you want to be able to do is to read the content of the blob. That sounds like a good opportunity to use a FileReader object. You can learn about FileReader objects here.

A FileReader object provides some very helpful methods for asynchronously reading the content of blob objects or files in different ways. The FileReader interface has pretty good browser support and supports reading blob data as follows as at the time of this writing :. Here is what a typical object URL looks like:.

The URL. Here is what it looks like:. It is important to note that, this method will always return a new object URL each time it is called, even if it is called with the same blob object. Whenever an object URL is created, it stays around for the lifetime of the document on which it was created. Usually, the browser will release all object URLs when the document is being unloaded. However, it is important that you release object URLs whenever they are no longer needed in order to improve performance and minimize memory usage.

It takes the object URL to be released as its argument. For example:. We have also seen how we can programmatically extract or generate content in the browser using Web APIs. In this section, we will examine how we can download programmatically generate content in the browser, leveraging all we have learned from the beginning of the article and what we already know about blobs and object URLs. The logic of our helper function can be broken down as follows:. Here is what an implementation of this helper function will look like:.

The default fileName value is also picked up by the process. The PDF. For easy demonstration, the sample application uses the basically unmodified version of the PDF. All PDF. Pdf project. As the time of writing this article, the latest stable version of the PDF. This version works fine for all latest versions of major browsers except for Internet Explorer 11 in which a runtime error is thrown when closing the viewer in an IFrame.

The sample application that comes with the PDF. You can find all release versions of the PDF. In the below line, the iframe is the DOM object and the response. The Apple stopped to release the Safari for Windows after the version 5. Although the PDF. I do notice that the later versions of PDF. In the past, Web developers commonly use the code to explicitly check the browser types and versions for conditionally directing to executions of particular code sections. The better practice now is to conduct the available option-based scenarios to resolve possible browser compatibility issues.

The sample application presents such scenarios for displaying PDF documents and downloading PDF files as shown with the link Option-based Scenario for All Browsers on the demo home page.