Package Exports

upload-js
upload-js/dist/main.js

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Readme

JavaScript File Upload Library
(With Integrated Cloud Storage)

Get Started — Try on CodePen

100% Serverless File Upload Library
Powered by Upload.io

DMCA Compliant • GDPR Compliant • 99.9% Uptime SLA
Supports: Rate Limiting, Volume Limiting, File Size & Type Limiting, JWT Auth, and more...

Installation

Install via NPM:

npm install upload-js

Or via YARN:

yarn add upload-js

Or via a <script> tag:

<script src="https://js.upload.io/upload-js/v2"></script>

Usage — Try on CodePen

To upload a file from the browser:

//
// <input type="file" onchange="onFileSelected(event)" />
//

import { Upload } from "upload-js";

const upload = Upload({ apiKey: "free" }); // Get production API keys from Upload.io

const onFileSelected = async (event) => {
  const [ file ]    = event.target.files;
  const { fileUrl } = await upload.uploadFile(file, { onProgress });
  console.log(`File uploaded: ${fileUrl}`);
}

const onProgress = ({ progress }) => {
  console.log(`File uploading: ${progress}% complete.`)
}

Full Working Example (Copy & Paste)

Try on CodePen / Copy to IDE & Run:

<html>
  <head>
    <script src="https://js.upload.io/upload-js/v2"></script>
    <script>
      const upload = Upload({
        // Get production API keys from Upload.io
        apiKey: "free"
      });

      const onFileSelected = async (event) => {
        try {
          const { fileUrl } = await upload.uploadFile(
            event.target.files[0],
            { onProgress: ({ progress }) => console.log(`${progress}% complete`) }
          );
          alert(`File uploaded!\n${fileUrl}`);
        } catch (e) {
          alert(`Error!\n${e.message}`);
        }
      }
    </script>
  </head>
  <body>
    <input type="file" onchange="onFileSelected(event)" />
  </body>
</html>

Examples with Popular Frameworks

Upload Files with React — Try on CodePen

const { Upload } = require("upload-js");
const upload = Upload({ apiKey: "free" });

const MyUploadButton = () => {
  const onFileSelected = async (event) => {
    try {
      const { fileUrl } = await upload.uploadFile(
        event.target.files[0],
        { onProgress: ({ progress }) => console.log(`${progress}% complete`) }
      );
      alert(`File uploaded!\n${fileUrl}`);
    } catch (e) {
      alert(`Error!\n${e.message}`);
    }
  }

  return <input type="file" onChange={onFileSelected} />;
};

Upload Files with Angular — Try on CodePen

const { Upload } = require("upload-js");
const upload = Upload({ apiKey: "free" });
angular
  .module("exampleApp", [])
  .controller("exampleController", $scope => {
    $scope.uploadFile = async (event) => {
      try {
        const { fileUrl } = await upload.uploadFile(
          event.target.files[0],
          { onProgress: ({ progress }) => console.log(`${progress}% complete`) }
        );
        alert(`File uploaded!\n${fileUrl}`);
      } catch (e) {
        alert(`Error!\n${e.message}`);
      }
    }
  })
  .directive("onChange", () => ({
    link: (scope, element, attrs) => {
      element.on("change", scope.$eval(attrs.onChange));
    }
  }));

Upload Files with Vue.js — Try on CodePen

const { Upload } = require("upload-js");
const upload = Upload({ apiKey: "free" });
const uploadFile = async (event) => {
  try {
    const { fileUrl } = await upload.uploadFile(
      event.target.files[0],
      { onProgress: ({ progress }) => console.log(`${progress}% complete`) }
    );
    alert(`File uploaded!\n${fileUrl}`);
  } catch (e) {
    alert(`Error!\n${e.message}`);
  }
}
const vueApp = new Vue({
  el: "#example",
  methods: { uploadFile }
});

Upload Files with jQuery — Try on CodePen

<html>
  <head>
    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
    <script src="https://js.upload.io/upload-js/v2"></script>
    <script>
      const upload = Upload({
        // Get production API keys from Upload.io
        apiKey: "free"
      });

      $(() => {
        $("#file-input").change(async (event) => {
          $("#file-input").hide()

          try {
            const { fileUrl } = await upload.uploadFile(
              event.target.files[0], {
              onProgress: ({ progress }) => $("#title").html(`File uploading... ${progress}%`)
            });

            $("#title").html(`
              File uploaded:
              <br/>
              <br/>
              <a href="${fileUrl}" target="_blank">${fileUrl}</a>`
            )
          } catch (e) {
            $("#title").html(`Error:<br/><br/>${e.message}`)
          }

        })
      })
    </script>
  </head>
  <body>
    <h1 id="title">Please select a file...</h1>
    <input type="file" id="file-input" />
  </body>
</html>

Upload Multiple Files with jQuery — Try on CodePen

Please refer to the CodePen example (link above).

Overview of the code:

Call Upload once at the start of your app.
Call uploadFile from your <input onchange="..."> handlers.
Use onProgress to display the upload progress for each input element.
When onUploaded fires, record the fileUrl from the callback's argument to a local variable.
When onUploaded has fired for all files, the form is ready to be submitted.

Note: file uploads will safely run in parallel, despite using the same Upload instance.

Resize Images

Given an uploaded image URL:

https://upcdn.io/W142hJk/raw/HhVSQ5ZQ5bfqvanQ

Resize with:

https://upcdn.io/W142hJk/thumbnail/HhVSQ5ZQ5bfqvanQ

Auto-crop (to square dimensions) with:

https://upcdn.io/W142hJk/thumbnail-square/HhVSQ5ZQ5bfqvanQ

Tip: for more transformations, please create an account.

Crop Images — Try on CodePen

To crop images using manually-provided geometry:

<html>
  <head>
    <script src="https://js.upload.io/upload-js/v2"></script>
    <script>
      const upload = Upload({
        // Get production API keys from Upload.io
        apiKey: "free"
      });

      // Step 1: Upload the original file.
      const onOriginalImageUploaded = async (originalImage) => {

        // Step 2: Configure crop geometry.
        const crop = {
          // Type Def: https://github.com/upload-io/upload-image-plugin/blob/main/src/types/ParamsFromFile.ts
          inputPath: originalImage.filePath,
          pipeline: {
            steps: [
              {
                geometry: {
                  // Prompt your user for these dimensions...
                  offset: {
                    x: 20,
                    y: 40
                  },
                  size: {
                    // ...and these too...
                    width: 200,
                    height: 100,
                    type: "widthxheight!"
                  }
                },
                type: "crop"
              }
            ]
          }
        }

        // Step 3: Upload the crop geometry.
        const blob = new Blob([JSON.stringify(crop)], {type: "application/json"});
        const croppedImage = await upload.uploadFile({
          name: "image_cropped.json", // Can be anything.
          type: blob.type,
          size: blob.size,
          slice: (start, end) => blob.slice(start, end)
        })

        // Step 4: Done! Here's the cropped image:
        return croppedImage;
      };

      const onFileSelected = async (event) => {
        const [ file ]      = event.target.files;
        const originalImage = await upload.uploadFile(file);
        const croppedImage  = await onOriginalImageUploaded(originalImage)

        alert(`Cropped image:\n${croppedImage.fileUrl.replace("/raw/", "/thumbnail/")}`)
      }
    </script>
  </head>
  <body>
    <input type="file" onchange="onFileSelected(event)" />
  </body>
</html>

📖 Documentation

See Upload.js Documentation »

🎯 Features

Upload.js is the JavaScript client library for Upload.io: the file upload service for developers.

Core features:

File Storage. (Files stored for 4 hours with the "free" API key.)
File Hosting via CDN. (Files served from 100 locations worldwide.)
Fast Image Transformations. (Resize images, crop images & convert images.)

Available with an account:

Permanent Storage. (The "free" API key provides temporary storage only.)
Unlimited Daily Uploads. (The "free" API key allows 100 uploads per day per IP.)
Extended CDN Coverage. (Files served from 300+ locations worldwide.)
More File Transformations. (Custom image resizing, cropping, converting, etc.)
Upload & Download Authentication. (Supports federated auth via your own JWT authorizer.)
File & Folder Management.
Expiring Links.
Custom CNAME.
Advanced Upload Control:
- Rate Limiting.
- Traffic Limiting.
- File Size Limiting.
- IP Blacklisting.
- File Type Blacklisting.
- And More...

Create an Upload.io account »

See Uploader »

Uploader is a lightweight file upload widget, powered by Upload.js:

Building From Source

Please read: BUILD.md

Contribute

If you would like to contribute to Upload.js:

Add a GitHub Star to the project (if you're feeling generous!).
Determine whether you're raising a bug, feature request or question.
Raise your issue or PR. 🚀

License

MIT

upload-js