How to get the file with specific file name? Adrita Sharma Adrita Sharma I've set the HttpHeader as blob but still the same issue. Your call would then look like this: this.
Also, I would suggest using a File object instead of just the Blob , which gives you the flexibility of giving it a filename like so: public downloadFile response: any, fileName? ShayD 5 5 silver badges 14 14 bronze badges. Suhas Bharadwaj Suhas Bharadwaj 1, 1 1 gold badge 14 14 silver badges 8 8 bronze badges. This is working fine, but the fileName doesn't work — Pradeep. To download the excel, use the below function.
Rohinibabu Rohinibabu 3 3 silver badges 11 11 bronze badges. Abhishek Gupta Abhishek Gupta 63 1 1 silver badge 9 9 bronze badges. According to the free dictionary "fs" has definitions.
Check it out here: acronyms. Just pasting code is not cool. So we can get notified when the download URL is available. Enter Project name, set Project Id, and click on Continue. Click on Web App , a window will be shown:. Open Tab Rules , then change allow read, write value to true. Open app. This component has a Form to upload a new File. It calls FileUploadService. This component will export item details for the list later. It has a file name with a URL and a Delete button. You can run this App with the command: ng serve.
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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.
Anything unclear? Let's finally define our custom operator that's using scan with our accumulator and seed :. 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.
By keeping FileSaver. 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. Let's use the Progress Bar from Angular Material to show how far along our download is.
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. Pro Tip : If you need to map something to more than two values inside a template or rather a ternary statement won't do it for you: map the observable to the type you need or use a custom pipe instead of calling a component function from the template. Both methods are pretty easy to write, more declarative and perform better.
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