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Get keys bound to a wallet address

While most Open Payments code snippets are intended for clients, getting the keys bound to a wallet address is primarily a function of account servicing entities.

When an authorization server receives a signed grant request, the server can make a call to acquire the public keys bound to the wallet address. Then, when a client makes a request to a resource server, the resource server calls the auth server to ensure the signature of the request corresponds to the public JWK of the wallet address. This enables the server to ensure the client is who it says it is.

These code snippets get the keys associated with the specified wallet address.

Before you begin

We recommend creating a wallet account on the test wallet. Creating an account allows you to test your client against the Open Payments APIs by using an ILP-enabled wallet funded with play money.

Retrieve the public keys for a wallet address

Prerequisites

Additional configuration

Add "type": "module" to package.json

Add the following to tsconfig.json

{
  "compilerOptions": {
    "target": "ES2022",
    "module": "ES2022"
  }
}

Import dependencies

Import createAuthenticatedClient from the Open Payments SDK package.

Import dependencies

import { createAuthenticatedClient } from "@interledger/open-payments";
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Create an authenticated Open Payments client

Create an Open Payments-authenticated client by providing the following properties:

  • walletAddressURL : your Open Payments-enabled wallet address that your client will use to authenticate itself to one or more authorization servers.
  • privateKey : the EdDSA-Ed25519 key or preferably the absolute or relative file path to the key that is bound to your wallet address. A public key signed with this private key must be made available as a public JWK document at {walletAddressUrl}/jwks.json url.
  • keyId : the identifier of the private key and the corresponding public key.

Initialize Open Payments client

const client = await createAuthenticatedClient({
  walletAddressUrl: WALLET_ADDRESS,
  privateKey: PRIVATE_KEY_PATH,
  keyId: KEY_ID,
});
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Get started

Import dependencies

import { createAuthenticatedClient } from "@interledger/open-payments";
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Initialize Open Payments client

const client = await createAuthenticatedClient({
  walletAddressUrl: WALLET_ADDRESS,
  privateKey: PRIVATE_KEY_PATH,
  keyId: KEY_ID,
});
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Get wallet address keys

const walletAddressKeys = await client.walletAddress.getKeys({
  url: WALLET_ADDRESS,
});
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Output

console.log("WALLET ADDRESS KEYS:", JSON.stringify(walletAddressKeys, null, 2));
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Run tsx path/to/directory/index.ts.

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References