Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Download a string as.
Asked 4 years, 5 months ago. Active 2 years, 8 months ago. Viewed 31k times. Chris Akash Sateesh Akash Sateesh 2 2 gold badges 6 6 silver badges 15 15 bronze badges. What is your setup? Add a comment. Active Oldest Votes. Chris Chris KevinB, not really. The linked question does not explain the solution, nor is it a question related to react. I have used three ways for downloading file — two ways for Save as functionality and one way to show the file content on browser itself. The above line create a Blob object with file content in response and expecting the file of JSON type.
The above two lines create a URL that will open the file in browser in new window. The above line shows the file content on browser, so it does not give you save as option. The above line uses ready-made FileSaver module that will open the file with Save as option. I have created service class to fetch file data from a server URL but I need to provide a link or button for downloading the file.
In the view file I will give users two options for downloading the same file. I will use link as well as button for downloading the same file from the server. In the service class I have used Http module which may not be found automatically.
So I need to register it in providers array of NgModule. Run the Angular application angular-file-download by executing command ng serve --open. When you click on link or button for downloading file you will see below page with file save option:. When you use the code for displaying data on browser inside download function of controller code and click on button or link, then you should see below output:.
For server side code you can read the post on Download file using Angular and Spring Boot. Hi, There is no such step other than running the command for installing file-saver package. You can check what goes wrong in the browser conaole. I found the answers so far lacking insight as well as warnings. This is the complete example with the application part and service part after. Note that we set the observe: "response" to catch the header for the filename.
Also note that the Content-Disposition header has to be set and exposed by the server, otherwise the current Angular HttpClient will not pass it on. I added a dotnet core piece of code for that below. I got a solution for downloading from angular 2 without getting corrupt, using spring mvc and angular 2. Here I am sending byte[] array has return type from the controller.
This will give you xls file format. If you want other formats change the mediatype and file name with right extension. I was facing this same case today, I had to download a pdf file as an attachment the file shouldn't be rendered in the browser, but downloaded instead.
To achieve that I discovered I had to get the file in an Angular Blob , and, at the same time, add a Content-Disposition header in the response. Well, I wrote a piece of code inspired by many of the above answers that should easily work in most scenarios where the server sends a file with a content disposition header, without any third-party installations, except rxjs and angular.
As you can see, it's basically pretty much the average backend call from angular, with two changes. Once the file is fetched from the server, I am in principle, delegating the entire task of saving the file to the helper function, which I keep in a separate file, and import into whichever component I need to. There, no more cryptic GUID filenames! We can use whatever name the server provides, without having to specify it explicitly in the client, or, overwrite the filename provided by the server as in this example.
Also, one can easily, if need be, change the algorithm of extracting the filename from the content-disposition to suit their needs, and everything else will stay unaffected - in case of an error during such extraction, it will just pass 'null' as the filename. As another answer already pointed out, IE needs some special treatment, as always. But with chromium edge coming in a few months, I wouldn't worry about that while building new apps hopefully. There is also the matter of revoking the URL, but I'm kinda not-so-sure about that, so if someone could help out with that in the comments, that would be awesome.
You may also download a file directly from your template where you use download attribute and to [attr. This simple solution should work on most browsers.
This answer suggests that you cannot download files directly with AJAX, primarily for security reasons. So I'll describe what I do in this situation,. Add href attribute in your anchor tag inside the component. Do all following steps in your component. If a tab opens and closes without downloading anything, i tried following with mock anchor link and it worked.
You can return a Blob object from the server and create an anchor tag and set the href property to an object URL created from the Blob. Now clicking on the anchor will download the file. You can set the file name as well. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow.
Learn more. How do I download a file with Angular2 or greater Ask Question. Asked 5 years, 9 months ago. Active 1 month ago. Viewed k times.
Basil 1, 12 12 silver badges 19 19 bronze badges. You cannot download large files with this method. You will hit the memory limit per tab. This may be as low as GB. For large file downloads you need to specify a new tab e. I don't think there's a clean way to get around the large file size limitation with Ajax-style requests.
Add a comment. Active Oldest Votes. One of the many ways that exist to solve this is as follows: this. Amr ElAdawy 3, 5 5 gold badges 32 32 silver badges 49 49 bronze badges. Alejandro Corredor Alejandro Corredor 2, 1 1 gold badge 8 8 silver badges 6 6 bronze badges. What is this. Burjua the getReport returns a this. The issue I'm having is that the window opens and closes immediately not downloading the file — Braden Brown.
How can we set file name in here? I've used the above code for downloading a file from API response but i'm getting some error in creating the Blob part "Type response is not assignable to type Blobpart". Kindly help if anyone knows this issue — knbibin. Show 10 more comments. Try this! Hector Cuevas Hector Cuevas 1, 1 1 gold badge 6 6 silver badges 3 3 bronze badges. I used step 2 in combination with the answer from Alejandro and it worked without the need to install file-saver Thank you!
It works perfectly! I wonder if we can get the filename that is defined on the header of the response. Is that possible? This one however is not suitable for big files download. Can someone please tell why this answer is downvoted?
The topic is to download a file using angular2. If this method works to do a simple download then it should also be marked as a valid answer. SaurabhShetty, This won't help in case you want to send custom headers, what if you want to send an auth token for example?
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