Wod Custom

{
  "constraints": {
    "contraindicated": [
      {
        "movement": "Barbell Overhead Press",
        "reason": "loads the impinged range"
      }
    ],
    "equipment_inventory": [
      "50lb dumbbells",
      "pull-up bar",
      "resistance bands"
    ],
    "experience_level": "intermediate",
    "goals": [
      "lower body strength",
      "aerobic engine"
    ],
    "injuries": [
      {
        "area": "left shoulder",
        "condition": "impingement"
      }
    ],
    "needs_medical_clearance": false,
    "red_flags": [],
    "substitutions": [
      {
        "avoid": "Barbell Overhead Press",
        "use": "Landmine Press",
        "why": "safer arc"
      }
    ]
  },
  "duration": "multi_week",
  "markdown": "# 4-Week Lower Body & Engine Block (Shoulder-Safe)\n\n## Overview\n- …\n\n## Warm-Up\n- …\n\n## Main Work\n### Week 1: Baseline\n#### Session 1: Posterior Chain\n- **DB Romanian Deadlift**: 4 × 8 @ RPE 7, rest 90 s\n…\n### Week 4: Deload\n…\n\n## Progression & Scaling Guidelines\n- …\n\n## Injury Modification Notes\n- Avoid: Barbell Overhead Press → Do instead: Landmine Press (neutral-grip, below-shoulder path)\n\n## Safety\n- …",
  "model": "gemini-flash-latest",
  "title": "4-Week Lower Body & Engine Block (Shoulder-Safe)",
  "weeks": 4
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://wod-api-production.up.railway.app/wod/custom' \
  -H 'content-type: application/json' \
  --data-raw '{"duration":"multi_week","equipment":["50lb dumbbells","pull-up bar","resistance bands"],"session_minutes":60,"sessions_per_week":3,"user_context":"Intermediate, 3 years CrossFit. Left shoulder impingement, focus on lower body & engine, avoid heavy overhead pressing.","weeks":4}'

# 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 - -X POST 'https://wod-api-production.up.railway.app/wod/custom' \
  -H 'content-type: application/json' \
  --data-raw '{"duration":"multi_week","equipment":["50lb dumbbells","pull-up bar","resistance bands"],"session_minutes":60,"sessions_per_week":3,"user_context":"Intermediate, 3 years CrossFit. Left shoulder impingement, focus on lower body & engine, avoid heavy overhead pressing.","weeks":4}' \
  | 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 $0.35 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.35" });
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 $0.35 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwod-api-production.up.railway.app%2Fwod%2Fcustom&method=POST
const res = await pay("https://wod-api-production.up.railway.app/wod/custom", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "duration": "multi_week",
    "equipment": [
      "50lb dumbbells",
      "pull-up bar",
      "resistance bands"
    ],
    "session_minutes": 60,
    "sessions_per_week": 3,
    "user_context": "Intermediate, 3 years CrossFit. Left shoulder impingement, focus on lower body & engine, avoid heavy overhead pressing.",
    "weeks": 4
  }),
});
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 $0.35 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.35"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://wod-api-production.up.railway.app/wod/custom",
        json={
            "duration": "multi_week",
            "equipment": [
                "50lb dumbbells",
                "pull-up bar",
                "resistance bands",
            ],
            "session_minutes": 60,
            "sessions_per_week": 3,
            "user_context": "Intermediate, 3 years CrossFit. Left shoulder impingement, focus on lower body & engine, avoid heavy overhead pressing.",
            "weeks": 4,
        },
    )
    print(res.status_code, res.text)