Issuer Configuration Off Chain

Token Negotiator issuer configuration off chain

Off chain tokens can be used in the same way as on chain tokens via Token Negotiator using the configurations below. The key difference is that instead of identifying tokens via blockchain(s), tokens are derived via an issuer website (the host origin that dispatched the tokens e.g. Devcon). An additional benefit to using this technology is that tokens can be read cross origin (via the issuer website with Token Negotiator).

EAS Off Chain configuration:

Parameters	Type	Details	Options
onChain	boolean	defines if the collection is on or off chain. Set this value to false.	true | false
collectionID	string	a unique string identifier for your usage (this will be the name space your tokens are kept)	string
title	string	collection display title	string
image	string	collection image	string
tokenOrigin	string	origin of token issuer	string
attestationOrigin	string	origin of attestation issuer	string
eas.schemaUid	string	schema identifier value	string
eas.idFields	string []	id fields	string []
eas.fields	object []	custom shema fields	object []
base64senderPublicKeys	object {}	key value object. Where keys represent each issuer event name and the value represents the public key.	object {}
base64attestorPubKey	string	attestation issuer public key	string
unEndPoint	string	origin of unpredictable number generator	string

A custom schema defined EAS issuer configuration:

{
      "collectionID": "customtoken",
      "onChain": false,
      "title": "Custom token",
      "image": "https://pbs.twimg.com/profile_images/1653427962350370816/GiJ0Wh-h_400x400.jpg",
      "tokenOrigin": "http://localhost:3002/",
      "attestationOrigin": "https://test.attestation.id/",
      "eas": {
         "schemaUid": "0x9dbdfc814762e2f356a87843ea3a0ef969c47bea0d70ee8c4a3a2f29c8c330dd",
         "idFields": ["tokenId"],
         "fields": [
            {
               "name": "tokenId",
               "label": "Token ID",
               "type": "string"
            },
            {
               "name": "ownerName",
               "label": "Owner Name",
               "type": "string"
            },
            {
               "name": "commitment",
               "label": "Hidden Identity",
               "type": "bytes"
            }
         ]
      },
      "base64senderPublicKeys": {
         "": "MIIBMzCB7AYHKoZIzj0CATCB4AIBATAsBgcqhkjOPQEBAiEA/////////////////////////////////////v///C8wRAQgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHBEEEeb5mfvncu6xVoGKVzocLBwKb/NstzijZWfKBWxb4F5hIOtp3JqPEZV2k+/wOEQio/Re0SKaFVBmcR9CP+xDUuAIhAP////////////////////66rtzmr0igO7/SXozQNkFBAgEBA0IABAjUvEi8UYyC+0rSFu+IwRBos/DEC6YMJV+eCnoYOC4nZU7uayKDJmBxVnmTOSwaM4+gufLbeqqxuovyF5gI3TQ="
      },
      "base64attestorPubKey": "MIIBMzCB7AYHKoZIzj0CATCB4AIBATAsBgcqhkjOPQEBAiEA/////////////////////////////////////v///C8wRAQgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHBEEEeb5mfvncu6xVoGKVzocLBwKb/NstzijZWfKBWxb4F5hIOtp3JqPEZV2k+/wOEQio/Re0SKaFVBmcR9CP+xDUuAIhAP////////////////////66rtzmr0igO7/SXozQNkFBAgEBA0IABL+y43T1OJFScEep69/yTqpqnV/jzONz9Sp4TEHyAJ7IPN9+GHweCX1hT4OFxt152sBN3jJc1s0Ymzd8pNGZNoQ="
   }

Example use

import { Client } from "@tokenscript/token-negotiator";
import "@tokenscript/token-negotiator/dist/theme/style.css";

// configuration

const negotiator = new Client({
	type: "active",
	issuers: [
		{
			onChain: false,
			collectionID: "devcon",
			title: "Devcon",
			image: "https://raw.githubusercontent.com/TokenScript/token-negotiator/main/mock-images/devcon.svg",
			tokenOrigin: "http://localhost:3002/",
			attestationOrigin: "https://stage.attestation.id/",
			unEndPoint: "https://crypto-verify.herokuapp.com/use-devcon-ticket",
			base64senderPublicKeys: { AttestationDAO: "MFYwEAYHKoZIzj0CAQYFK..." },
			base64attestorPubKey: "MIIBMzCB7AYHKoZIzj0C..."
		}
	],
	uiOptions: {
		openingHeading: "Connect your NFT to access custom content and more.",
		issuerHeading: "Get discount with token",
		repeatAction: "try again",
		theme: "light",
		position: "bottom-right",
	},
});

// invoke

negotiator.negotiate();

// event hooks

negotiator.on("tokens-selected", (tokens) => {
	console.log('owner tokens', tokens);
});

For any more details around this technology solution, please reach out to us on discord or via [e-mail]