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Introducing the Socket Python SDK
The initial version of the Socket Python SDK is now on PyPI, enabling developers to more easily interact with the Socket REST API in Python projects.
file-saver
Advanced tools
The file-saver package is a solution for client-side file saving. It allows web applications to save files on the client's computer, effectively generating files based on data within the browser. This can be useful for applications that need to export reports, download documents, or save user-generated content without sending data back to a server.
Saving text files
This feature allows you to save text files. The code sample demonstrates saving a simple text file named 'hello_world.txt' with the content 'Hello, world!'.
saveAs(new Blob(['Hello, world!'], {type: 'text/plain;charset=utf-8'}), 'hello_world.txt');
Saving binary files
This feature enables the saving of binary files, such as images or documents, in a binary format. The code sample shows how to save a binary file named 'example.bin'.
saveAs(new Blob([binaryData], {type: 'application/octet-stream'}), 'example.bin');
js-file-download is a package for triggering browser downloads from JavaScript. It's simpler and has fewer features than file-saver, focusing mainly on triggering downloads by creating and clicking a hidden link with the file URL.
If you need to save really large files bigger then the blob's size limitation or don't have enough RAM, then have a look at the more advanced StreamSaver.js that can save data directly to the hard drive asynchronously with the power of the new streams API. That will have support for progress, cancelation and knowing when it's done writing
FileSaver.js is the solution to saving files on the client-side, and is perfect for webapps that generates files on the client, However if the file is coming from the server we recomend you to first try to use Content-Disposition attachment response header as it has more cross browser compatible
Looking for canvas.toBlob()
for saving canvases? Check out
canvas-toBlob.js for a cross-browser implementation.
Browser | Constructs as | Filenames | Max Blob Size | Dependencies |
---|---|---|---|---|
Firefox 20+ | Blob | Yes | 800 MiB | None |
Firefox < 20 | data: URI | No | n/a | Blob.js |
Chrome | Blob | Yes | 500 MiB | None |
Chrome for Android | Blob | Yes | 500 MiB | None |
Edge | Blob | Yes | ? | None |
IE 10+ | Blob | Yes | 600 MiB | None |
Opera 15+ | Blob | Yes | 500 MiB | None |
Opera < 15 | data: URI | No | n/a | Blob.js |
Safari 6.1+* | Blob | No | ? | None |
Safari < 6 | data: URI | No | n/a | Blob.js |
Safari 10.1+ | Blob | Yes | n/a | None |
Feature detection is possible:
try {
var isFileSaverSupported = !!new Blob;
} catch (e) {}
It is possible to save text files in IE < 10 without Flash-based polyfills.
See ChenWenBrian and koffsyrup's saveTextAs()
for more details.
Blobs may be opened instead of saved sometimes—you may have to direct your Safari users to manually
press ⌘+S to save the file after it is opened. Using the application/octet-stream
MIME type to force downloads can cause issues in Safari.
saveAs must be run within a user interaction event such as onTouchDown or onClick; setTimeout will prevent saveAs from triggering. Due to restrictions in iOS saveAs opens in a new window instead of downloading, if you want this fixed please tell Apple how this WebKit bug is affecting you.
import saveAs from 'file-saver';
FileSaver saveAs(Blob/File/Url, optional DOMString filename, optional Object { autoBOM })
Pass { autoBOM: true }
if you want FileSaver.js to automatically provide Unicode text encoding hints (see: byte order mark).
var FileSaver = require('file-saver');
var blob = new Blob(["Hello, world!"], {type: "text/plain;charset=utf-8"});
FileSaver.saveAs(blob, "hello world.txt");
var blob = new Blob(["Hello, world!"], {type: "text/plain;charset=utf-8"});
FileSaver.saveAs(blob, "hello world.txt");
FileSaver.saveAs("https://httpbin.org/image", "image.jpg");
Using urls within the same origin will just use a[download]
Otherwise it will first check if it supports cors header with a synchronously head request
if it dose it will download the data and save it using blob urls
if not it will try to download it using a[download]
The standard W3C File API Blob
interface is not available in all browsers.
Blob.js is a cross-browser Blob
implementation that solves this.
var canvas = document.getElementById("my-canvas");
canvas.toBlob(function(blob) {
saveAs(blob, "pretty image.png");
});
Note: The standard HTML5 canvas.toBlob()
method is not available in all browsers.
canvas-toBlob.js is a cross-browser canvas.toBlob()
that polyfills this.
You can save a File constructor without specifying a filename. The File itself already contains a name, There is a hand full of ways to get a file instance (from storage, file input, new constructor, clipboard event) But if you still want to change the name, then you can change it in the 2nd argument
// Note: Ie and Edge don't support the new File constructor,
// so it's better to construct blobs and use saveAs(blob, filename)
var file = new File(["Hello, world!"], "hello world.txt", {type: "text/plain;charset=utf-8"});
FileSaver.saveAs(file);
npm install file-saver --save
bower install file-saver
Additionally, TypeScript definitions can be installed via:
npm install @types/file-saver --save-dev
[2.0.0-rc.4] - 2018-10-17
FAQs
An HTML5 saveAs() FileSaver implementation
The npm package file-saver receives a total of 2,866,743 weekly downloads. As such, file-saver popularity was classified as popular.
We found that file-saver demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 2 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
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