Downloading files is a common task for web applications. These files could be some PDF, ZIP or any other binary or text-based file that you want to make accessible to your users. Here's how you can download files in Angular either with a rather simple link or JavaScript-based for more control and progress indication.
Download Observe And Report Mp4
A simple download link can be easily achieved with plain HTML in Angular. You'll use an anchor tag pointing to the file with the href attribute. The download attribute informs the browser that it shouldn't follow the link but rather download the URL target. You can also specify its value in order to set the name of the file being downloaded.
Older browsers, like the Internet Explorer, might not recognize the download attribute. For those cases you can open the download in a new browser tab with the target attribute set to _blank. Make sure though to always include rel="noopener noreferrer" when you're using target="_blank" so you're not opening yourself up to security vulnerabilities.
If there's no download attribute, the filename for your download will solely depend on the HTTP header Content-Disposition sent by the server that's providing the file. The information from this header might also take precedence even if the download attribute is present.
A link-based solution conforms well to HTML standards and lets the browser do most of the work. However, if you want more control over the download and would like to display some custom progress indicator you can also download files via Angular's HttpClient.
Here, we're creating an anchor tag programmatically when the blob arrives. With URL.createObjectURL we can generate a download link to the blob. Finally, we click() the link like the user would've done with a regular browser download link. After the file is downloaded, we'll discard the blob by revoking the object URL we created.
By setting the option observe to events while making an HTTP request, we won't just receive the final response body of the request but also get access to intermediate HTTP events. There are multiple kinds of HTTP events in Angular, all consolidated under the type HttpEvent. We also need to explicitly pass the option reportProgress in order to receive HttpProgressEvents. Our HTTP request will eventually look like follows:
Since we don't just want to forward these events to every component, our service has to do some more work. Otherwise our component would have to deal with HTTP specifics - that's what services are for! Instead let's introduce a data structure representing a download with progress:
A Download can be in one of three states. Either it hasn't started yet, therefore it's pending. Otherwise it's done or still in progress. We use TypeScript's union types to define the different download states. Additionally, a download has a number indicating the download progress from 1 to 100. Once a download is done, it will contain a Blob as its content - until then this property is not available, therefore null.
Based on these guards we can now create our custom operator. It'll leverage scan, an operator that allows us to accumulate state for successive values coming through an observable. It takes up to two arguments: First, we provide an accumulator function which will compute the next Download state from the previous one and the current HttpEvent. Second, we'll pass a seed to scan representing the initial Download state. This seed will represent our download being pending without any progress or content:
When we encounter a HttpProgressEvent, we calculate the progress based on the number of bytes already loaded and the total bytes. A download is done when we receive a HttpResponse containing the file contents in its body. When receiving any other events than HttpProgressEvent or HttpResponse, we won't alter the download's state and return it as it is. This way, for example, we can keep the information in the progress property while other events that won't allow us to compute the progress can be ignored for now.
Notice that this download operator accepts an optional parameter saver. Once a HTTP response is received, this function is invoked with the download content from inside the accumulator. This allows us to pass in a strategy for persisting the download to a file without directly coupling the operator to FileSaver.js.
By keeping FileSaver.js out of our custom operator, the resulting code is more maintainable. The download operator can be tested without somehow mocking the saveAs import (see here for corresponding tests). If we apply the same pattern to the service, we'll be able to test it just as easy. So let's do that by creating a custom injection token for saveAs in a file called saver.provider.ts:
Let's use the Progress Bar from Angular Material to show how far along our download is. We'll create a component property for binding a download called download$. The component now only has to assign an observable download to this property:
We can then subscribe to this observable through the AsyncPipe in combination with NgIf. While the download is pending we'll display the progress bar in 'buffer' mode (you may also use 'query'), otherwise the progress is determinate. The bar's value can then easily be applied from Download.
31 U.S.C. 5311 - Declaration of purpose31 U.S.C. 5312 - Definitions and application31 U.S.C. 5313 - Reports on domestic coins and currency transactions31 U.S.C. 5314 - Records and reports on foreign financial agency transactions
31 U.S.C. 5316 - Reports on exporting and importing monetary instruments31 U.S.C. 5317 - Search and forfeiture of monetary instruments31 U.S.C. 5318 - Compliance, exemptions, and summons authority31 U.S.C. 5318A - Special measures for jurisdictions, financial institutions, international transactions, or types of accounts of primary money laundering concern31 U.S.C. 5319 - Availability of reports31 U.S.C. 5320 - Injunctions31 U.S.C. 5321 - Civil penalties31 U.S.C. 5322 - Criminal penalties31 U.S.C. 5323 - Whistleblower incentives and protections31 U.S.C. 5324 - Structuring transactions to evade reporting requirement prohibited31 U.S.C. 5325 - Identification required to purchase certain monetary instruments31 U.S.C. 5326 - Records of certain domestic transactions
[31 U.S.C. 5327 and 5328 have been repealed. Section 5327, relating to financial institutions reporting on customers, was repealed in 1996. Section 5328, relating to protections for whistleblowers, was repealed by the National Defense Authorization Act for Fiscal Year 2021.]
31 U.S.C. 5329 - Staff commentaries31 U.S.C. 5330 - Registration of money transmitting businesses31 U.S.C. 5331 - Reports relating to coins and currency received in nonfinancial trade or business31 U.S.C. 5332 - Bulk cash smuggling into or out of the United States31 U.S.C. 5333 - Safe harbor with respect to keep open directives31 U.S.C. 5334 - Training regarding anti-money laundering and countering the financing of terrorism31 U.S.C. 5335 - Prohibition on concealment of the source of assets in monetary transactions31 U.S.C. 5336 - Beneficial ownership information reporting requirements
in the blob to file function we are expecting first parameter as our blob data, type of file and pass file name including extention 1. we are creating an html a tag element 2. then we append the element in html 3. then hide the a tag element 4. then create new blob object with file and type 5. we will convert the blob object to URL 6. then appened that URL to href property of our a tag 7. we are opening our URL in window so it will download
After spending much time searching for a response to this answer: how to download a simple image from my API restful server written in Node.js into an Angular component app, I finally found a beautiful answer in this web Angular HttpClient Blob. Essentially it consist on:
Want to track how many times visitors download your eBook, PDF, or any other files on your WordPress website in Google Analytics? The MonsterInsights plugin lets you easily and accurately set up Google Analytics download tracking in just a couple clicks.
The easiest way of tracking file downloads in Google Analytics is by using a WordPress plugin. MonsterInsights is the best Google Analytics WordPress plugin, and it makes it very easy to see which files people like to download the most.
To view your file download data in Google Analytics 4, you can start by clicking the View All Download Links Report button at the bottom of your MonsterInsights downloads report, or by navigating to Reports Engagement Events, then scrolling down to the table and clicking on the file_download event.
We hope that you liked our guide on how to track file downloads in WordPress and Google Analytics. If you want, you can also check out our article on how to track links and button clicks in Google Analytics.
The layout and size of the report depends on what you are sharing.For saved searches, dashboards, and visualizations, the layout depends on the size of the panels.For workpads, the layout depends on the size of the worksheet dimensions.
Reports are stored in Elasticsearch and managed by the kibana-reporting index lifecycle management(ILM) policy. By default, the policy stores reports forever. To learnmore about ILM policies, refer to the ElasticsearchILM documentation.
[beta]This functionality is in beta and is subject to change. The design and code is less mature than official GA features and is being provided as-is with no warranties. Beta features are not subject to the support SLA of official GA features. Canvas allows you to create shareables, which are workpads that you download and securely share on a website.To customize the behavior of the workpad on your website, you can choose to autoplay the pages or hide the workpad toolbar.
An HTTP range request asks the server to send only a portion of an HTTP message back to a client. Range requests are useful for clients like media players that support random access, data tools that know they need only part of a large file, and download managers that let the user pause and resume the download. 2ff7e9595c
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