anchor-link
Advanced tools
Library for authenticating and signing transactions using the Anchor Link protocol
Persistent, fast and secure signature provider for EOSIO chains built on top of EOSIO Signing Requests (EEP-7)
Key features:
Take it for a spin: Anchor Link Demo
Resources:
The Anchor Link protocol uses EEP-7 identity requests to establish a channel to compatible wallets using an untrusted HTTP POST to WebSocket forwarder (see buoy node.js and buoy golang).
A session key and unique channel URL is generated by the client which is attached to the identity request and sent to the wallet (see transports). The wallet signs the identity proof and sends it back along with its own channel URL and session key. Subsequent signature requests can now be encrypted to a shared secret derived from the two keys and pushed directly to the wallet channel.
The anchor-link package is distributed both as a module on npm and a standalone bundle on unpkg.
Install Anchor Link and a transport:
yarn add anchor-link anchor-link-browser-transport
# or
npm install --save anchor-link anchor-link-browser-transport
Import them into your project:
import AnchorLink from 'anchor-link'
import AnchorLinkBrowserTransport from 'anchor-link-browser-transport'
Jump to basic usage.
Include the scripts in your <head> tag.
<script src="https://unpkg.com/anchor-link"></script>
<script src="https://unpkg.com/anchor-link-browser-transport"></script>
AnchorLink and AnchorLinkBrowserTransport are now available in the global scope of your document.
Using node.js or bundler (e.g. webpack) recommended
yarn add anchor-link
Transports in Anchor Link are responsible for getting signature requests to the users wallet when establishing a session or when using anchor link without logging in.
Available transports:
| Package | Description |
|---|---|
| anchor-link-browser-transport | Browser overlay that generates QR codes or triggers local URI handler if available |
| anchor-link-console-transport | Transport that prints ASCII QR codes and esr:// links to the JavaScript console |
See the LinkTransport documentation for details on how to implement custom transports.
Take it for a spin
Download Anchor
Persistent signing sessions for [Anchor]*
Persistent Session library for ESR
EOSIO
Example usage:
import {Link} from 'anchor-link'
const link = new Link({
chainId: 'e70aaab8997e1dfce58fbfac80cbbb8fecec7b99cf982a9444273cbc64c41473',
rpc: 'https://jungle.greymass.com',
service: 'https://link.dirty.fish',
})
link.transact({
broadcast: true,
action: {
account: 'eosio.token',
name: 'transfer',
authorization: [
{
actor: '............1',
permission: '............1',
},
],
data: {
from: '............1',
to: 'teamgreymass',
quantity: '0.0001 EOS',
memo: 'nani',
},
},
})
.then((result) => {
console.log('success', result)
})
.catch((error) => {
console.log('error', error)
})
FAQs
Library for authenticating and signing transactions using the Anchor Link protocol
The npm package anchor-link receives a total of 711 weekly downloads. As such, anchor-link popularity was classified as not popular.
We found that anchor-link demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 2 open source maintainers collaborating on the project.
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