/**
* Tezos x402 NFT Minting Worker
*
* This worker mints NFTs when users pay via the x402 protocol.
* It returns 402 Payment Required until a valid payment is received,
* then mints an NFT receipt to the payer.
*
* Endpoints:
* GET/POST / - Mint an NFT (requires x402 payment)
* GET /health - Health check
*
* Environment variables (secrets):
* TEZOS_RPC_URL - Tezos RPC endpoint
* MINTER_PRIVATE_KEY - edsk... key authorized to mint
* NFT_CONTRACT - KT1... FA2 NFT contract address
* PAYMENT_RECIPIENT - tz1... address to receive payments
* FACILITATOR_URL - x402 facilitator URL
* PINATA_JWT - Pinata API JWT for IPFS
*
* Environment variables (vars):
* NETWORK - "shadownet" or "mainnet"
* PAYMENT_AMOUNT - Amount in mutez (e.g., "100000")
*/
import type { Env } from "./types/index.js";
import { handleMint } from "./handlers/mint.js";
export default {
async fetch(
request: Request,
env: Env,
ctx: ExecutionContext
): Promise<Response> {
const url = new URL(request.url);
const path = url.pathname;
// CORS headers for preflight requests
if (request.method === "OPTIONS") {
return new Response(null, {
headers: {
"Access-Control-Allow-Origin": "*",
"Access-Control-Allow-Methods": "GET, POST, OPTIONS",
"Access-Control-Allow-Headers": "Content-Type, X-PAYMENT",
"Access-Control-Max-Age": "86400",
},
});
}
// Health check endpoint
if (path === "/health") {
return new Response(
JSON.stringify({
status: "ok",
service: "tezos-x402-nft",
network: env.NETWORK,
contract: env.NFT_CONTRACT,
}),
{
status: 200,
headers: { "Content-Type": "application/json" },
}
);
}
// Root path handles minting
if (path === "/" || path === "") {
if (request.method === "GET" || request.method === "POST") {
const response = await handleMint(request, env, ctx);
// Add CORS headers to response
const headers = new Headers(response.headers);
headers.set("Access-Control-Allow-Origin", "*");
headers.set("Access-Control-Expose-Headers", "X-PAYMENT");
return new Response(response.body, {
status: response.status,
statusText: response.statusText,
headers,
});
}
return new Response(JSON.stringify({ error: "Method not allowed" }), {
status: 405,
headers: {
"Content-Type": "application/json",
Allow: "GET, POST, OPTIONS",
},
});
}
// 404 for unknown routes
return new Response(JSON.stringify({ error: "Not found" }), {
status: 404,
headers: { "Content-Type": "application/json" },
});
},
};
