npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@spheron/browser-upload

v2.0.1

Published

Typescript library for uploading files or directory from the Browser to IPFS, Filecoin or Arweave via Spheron

Downloads

30

Readme

Usage:

This package adds support to upload files directly from browser to IPFS, Filecoin or Arweave via Spheron. The general usage flow would be as:

  1. Send a request from your web app to your BE service to generate a token that can be used only for a single upload. In this request you can check if the user of you app has all the requirements to upload data.
// Send a request to your Backend endpoint to create a token that will be used with the @spheron/browser-upload
const response = await fetch(`<BACKEND_URL>/initiate-upload`);
  1. On your BE service, use the method createSingleUploadToken from @spheron/storage package. This method will provide you with a unique token that can only be used for a single upload with the upload function from @spheron/browser-upload, and this token has a expiration of 10 minutes.
import { SpheronClient, ProtocolEnum } from "@spheron/storage";

...

app.get("/initiate-upload", async (req, res, next) => {
  try {
    const bucketName = "example-browser-upload"; // use which ever name you prefer
    const protocol = ProtocolEnum.IPFS; // use which ever protocol you prefer

    const client = new SpheronClient({
      token: <SPHERON_TOKEN>,
    });

    const { uploadToken } = await client.createSingleUploadToken({
      name: bucketName,
      protocol,
    });

    res.status(200).json({
      uploadToken,
    });
  } catch (error) {
    console.error(error);
    next(error);
  }
});
  1. Return to your web app the token you got from createSingleUploadToken, and using upload method from @spheron/browser-upload, upload files directly from the Browser to the specified protocol.
import { upload } from "@spheron/browser-upload";

...

const response = await fetch(`<BACKEND_URL>/initiate-upload`); // from step 1
const resJson = await response.json();
const token =  resJson.uploadToken;
const uploadResult = await upload(<FILES_YOU_WANT_TO_UPLOAD>, { token });

...

Using this flow, you can control who can use you API token and upload data from your web app.

Checkout the LINK for a working example.

Example:

import { upload } from "@spheron/browser-upload";

const uploadToken = /* logic that would send a request to your BE and return a token that can be used only for a single upload */

let currentlyUploaded = 0;
const uploadResult = await upload(files, {
  token: res.uploadToken,
  onChunkUploaded: (uploadedSize, totalSize) => {
    currentlyUploaded += uploadedSize;
    console.log(`Uploaded ${currentlyUploaded} of ${totalSize} Bytes.`);
  },
});
  • The package exports one function upload(files: File[], configuration: { token: string; onChunkUploaded?: (uploadedSize: number, totalSize: number) => void; }): Promise<UploadResult>
    • Function upload has two parameters client.upload(filePath, configuration);
      • files - files that will be uploaded.
      • configuration - an object with parameters:
        • configuration.token - a token used for a single upload. Check the Access Token section bellow for more information.
        • configuration.onChunkUploaded - optional - callback function (uploadedSize: number, totalSize: number) => void. The function will be called multiple times, depending on the upload size. The function will be called each time a chunk is uploaded, with two parameters. the first one uploadedSize represents the size in Bytes for the uploaded chunk. The totalSize represents the total size of the upload in Bytes.
    • The response of the upload function is an object with parameters:
      • uploadId - the id of the upload.
      • bucketId - the id of the bucket.
      • protocolLink - the protocol link of the upload.
      • dynamicLinks - domains that you have setup for your bucket. When you upload new data to the same bucket, the domains will point to the new uploaded data.
      • cid - the CID of the uploaded data. Only exists for IPFS and Filecoin protocols.

Access Token

To create a token you should use the method createSingleUploadToken from @spheron/storage package on you Backend service. This method will generate a unique token that can be used only for a single upload.

Notes

The package is only meant for Browser environments.

Learn More

You can learn more about Spheron and browser-upload package here: