@identity.com/solana-gateway-ts

Gateway-ts - library

This library provides a utility methods for helping decentralized Apps (dApps) to make use of on-chain identity methods like gateway token retrieval, lookup, and revocation.

• Gateway-ts - library
  • Usage
    • Installation
    • Import
  • Functions
    • findGatewayTokens
    • addGatekeeper
    • getGatekeeperAccountKeyFromGatekeeperAuthority
    • getGatewayTokenKeyForOwner
    • issue
    • findGatewayTokens

Usage

Installation

yarn add @identity.com/solana-gateway-ts

Import

import {
  addGatekeeper,
  getGatekeeperAccountKeyFromGatekeeperAuthority,
  getGatewayTokenKeyForOwner,
  issue,
  findGatewayTokens,
} from "@identity.com/solana-gateway-ts";

Functions

findGatewayTokens

Utility method for finding gateway token created for a given public key. This method does the lookup against the Solana blockchain. Returns an empty array if gateway tokens doesn't exist for the given public key.

const gatewayToken: PublicKey = await findGatewayToken(connection, owner, gatekeeperKey);

Optionally, a 'revoked' flag can be passed to allow retrieval of all, even revoked, tokens.

addGatekeeper

Creates the instruction for adding a gatekeeper to the gatekeeper network Usage:

const payer: Keypair;
const gatekeeperNetwork: Keypair;
const gatekeeperAccount: PublicKey;
const gatekeeperAuthority: PublicKey;
const transaction = new Transaction().add(
      addGatekeeper(
        payer.publicKey,
        gatekeeperAccount,
        gatekeeperAuthority,
        gatekeeperNetwork.publicKey
      )
    );

    await send(
      connection,
      transaction,
      payer,
      gatekeeperNetwork
    );

getGatekeeperAccountKeyFromGatekeeperAuthority

Retrieves the gatekeeperAccount for a gatekeeper authority key, so the caller doens't need to keep a record of the gatekeeper account.

const gatekeeperAccount =
      await getGatekeeperAccountKeyFromGatekeeperAuthority(
        this.gatekeeperAuthority.publicKey
      );

getGatewayTokenKeyForOwner

Derives a gateway token key for an owner using the gateway program, additionally accepting a seed parameter

const gatewayTokenKey = await getGatewayTokenKeyForOwner(owner);

issue

Issue a gatewayToken to an account

const owner: PublicKey;
const payer: Keypair;
const gatekeeperNetwork: Keypair;
const gatekeeperAccount: PublicKey;
const gatekeeperAuthority: PublicKey;

const gatewayTokenKey = await getGatewayTokenKeyForOwner(owner);
const gatekeeperAccount =
  await getGatekeeperAccountKeyFromGatekeeperAuthority(
    gatekeeperAuthority.publicKey
  );

const transaction = new Transaction().add(
  issue(
    seed,
    gatewayTokenKey,
    payer.publicKey,
    gatekeeperAccount,
    owner,
    gatekeeperAuthority.publicKey,
    gatekeeperNetwork
  )
);

await send(
  connection,
  transaction,
  payer,
  gatekeeperAuthority
);

findGatewayTokens

Find gatewayTokens that have been created on a network for an account

const owner: PublicKey;
const gatekeeperNetwork: Keypair;
const accounts = await findGatewayTokens(
    connection,
    owner.publicKey,
    gatekeeperNetworkKey
  );