Quickstart for agents

import { Ed25519Keypair } from "@mysten/sui/keypairs/ed25519";
import { fromBase64 } from "@mysten/sui/utils";

import type { ClientSuiSigner } from "@tentaclepay/sui-x402";

const keypair = Ed25519Keypair.fromSecretKey(process.env.CLIENT_PRIVATE_KEY!);

const signer: ClientSuiSigner = {
  address: keypair.toSuiAddress() as `0x${string}`,
  signTransaction: async (bytes: string) => {
    const { signature } = await keypair.signTransaction(fromBase64(bytes));
    return signature;
  },
};

import { x402Client } from "@x402/core/client";
import { wrapFetchWithPayment } from "@x402/fetch";

import { ExactSuiScheme } from "@tentaclepay/sui-x402/exact/client";

const client = new x402Client();
client.register("sui:testnet", new ExactSuiScheme(signer));

const fetchWithPayment = wrapFetchWithPayment(fetch, client);

const response = await fetchWithPayment("http://localhost:3000/weather", {
  method: "GET",
  headers: { "Content-Type": "application/json" },
});

const data = await response.json();
console.log("Response:", data);

import { x402HTTPClient } from "@x402/core/client";

if (response.ok) {
  const httpClient = new x402HTTPClient(client);
  const paymentResponse = httpClient.getPaymentSettleResponse((name) =>
    response.headers.get(name)
  );
  console.log(
    "Transaction:",
    `https://testnet.suivision.xyz/txblock/${paymentResponse.transaction}`
  );
}