Wine Sommelier

{
  "data": {
    "grapes": [
      {
        "color": "red",
        "name": "Nebbiolo",
        "profile": "High tannin, high acidity, ruby-garnet color with floral and spiced aromatics.",
        "sensoryProfile": {
          "acidity": 4,
          "aromaticIntensity": 4,
          "body": 4,
          "elegance": 5,
          "longevity": 5,
          "tannin": 5
        },
        "slug": "nebbiolo"
      }
    ],
    "producer": {
      "annualBottles": 250000,
      "description": "Historic family-owned Barolo pioneer renowned for single-vineyard crus.",
      "founded": 1873,
      "hectares": 35,
      "location": "Castiglione Falletto (CN)",
      "name": "Vietti",
      "region": "Piedmont",
      "slug": "vietti"
    },
    "sommelierNotes": {
      "characteristicsSummary": "Classic expression of Piedmont, crafted with Nebbiolo. Balanced sensory profile combining varietal typicity and terroir distinction.",
      "drinkingWindow": {
        "currentMaturity": "in_drinking_window",
        "drinkFrom": 2025,
        "drinkUntil": 2045
      },
      "servingAdvice": "Optimal serving temperature: 16-18°C. Serve in a large Bordeaux/Burgundy glass. At optimal drinking peak: uncork 30-45 minutes before serving."
    },
    "terroir": {
      "country": "IT",
      "denomination": "Barolo DOCG",
      "province": "CN",
      "region": "Piedmont"
    },
    "wine": {
      "appellation": "Barolo DOCG",
      "category": "red",
      "description": "Elegantly structured red with notes of dried rose, tar, and wild berries.",
      "id": "6645a1b2c3d4e5f6a7b8c9d1",
      "name": "Barolo",
      "vintage": 2019
    }
  },
  "success": true
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.wines.bet/v1/wine/sommelier?country=IT&lang=en&name=Barolo&vintage=2019'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://api.wines.bet/v1/wine/sommelier?country=IT&lang=en&name=Barolo&vintage=2019' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.wines.bet%2Fv1%2Fwine%2Fsommelier
const res = await pay("https://api.wines.bet/v1/wine/sommelier?country=IT&lang=en&name=Barolo&vintage=2019");
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://api.wines.bet/v1/wine/sommelier?country=IT&lang=en&name=Barolo&vintage=2019")
    print(res.status_code, res.text)