Is it to read the contents of the file so your React app can use that content in some way, or is it to actually download the file to the user's computer? Thanks for your reply. The goal is for the user on the client side to be able to download the file in csv format. I actually figured out how to do this in the end using Blob but was having issues due to certain features being deprecated. I will answer this myself now, many thanks though!
Add a comment. Active Oldest Votes. Pavlov Serhiy Pavlov Serhiy 4 4 bronze badges. Thanks for the heads up, noted and appreciate the advice! Amr Omar Amr Omar 1 1 silver badge 7 7 bronze badges. Dharman Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast what if you could invest in your favorite developer?
I wanted the user to be able to click a button and immediately initiate a download without popping open a new tab with a PDF preview.
Generally, if a file is hosted at a URL that has a different domain that the site the user is currently on, immediate downloads are blocked by many browsers for user security reasons. If you use this solution, do not initiate the file download unless a user clicks on a button to intentionally download.
In order to get by this, I needed to fetch the file from the URL getting around any CORS policies to save a local Blob that would then be the source of the downloaded file. Update As of January 31st, , the cors-anywhere demo hosted on Heroku servers will only allow limited use for testing purposes and cannot be used for production applications.
You will have to host your own cors-anywhere server by following cors-anywhere or cors-server. You can use FileSaver. I have the exact same problem, and here is the solution I make use of now: Note, this seems ideal to me because it keeps the files closely tied to the SinglePageApplication React app, that loads from Amazon S3.
So, it's like storing on S3, and in an application, that knows where it is in S3, relatively speaking. For downloading you can use multiple ways as been explained above, moreover I will also provide my strategy for this scenario.
How are we doing? Please help us improve Stack Overflow. Take our short survey. 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. Asked 3 years, 5 months ago. Active 15 days ago. Viewed k times. Sameer Thite Sameer Thite 1, 2 2 gold badges 6 6 silver badges 11 11 bronze badges. Triggering browser download from front-end is not a reliable way to do it.
You should create endpoint that when called, will provide the correct response headers, thus triggering the browser download. From my understanding, you are saying that it can be achieved by rest api with correct response headers, is it right?
I didn't know how to attach a link in comment, so I posted an answer. Add a comment. Active Oldest Votes. Anchor tag opens image in same browser tab preview of image and then we need to manually save the image. I am trying to achieve automatic download on button click, without opening file preview — Sameer Thite. Refer to this for more details: stackoverflow. I try for zip file, the file downloads, and never unzips properly. Someone might know the reason for it? When project directory creation is finished with all of its components then first task is to change the default title of the page.
Create DownloadFile. It is always good idea to call the super constructor even if we do not initialize any variable here. You have two approaches in coding style for downloading the file and give users Save As option to save the file according to their choice of place. I have the below code snippets that create URL with anchor tag, we pass the file name as employees. I have another line of code as shown blow, which will give users Save As option. Next we have render function to render the elements of React app.
Elements are the building blocks of React apps. As we said in Introduction section that we will give users two options for downloading file using link or using button. So in this render function we define our HTML elements with button and link to download file. Export the DownloadFile at the end of the DownloadFile class so that you can use this class in other modules, such as, I have used it later in below index. Notice I had included download.
This file is put under the src directory. The download.
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