Public Finance Campaign Reconciliation

{
  "data": {
    "chargedAmount": "10012",
    "inputHash": "sha256:0315f9f8473655f93166a4f51e53236922b167913b56e2680aa7da648…",
    "limitations": [
      "Public or synthetic inputs only. Caller labels are declarations,…"
    ],
    "productId": "campaign-record-reconcile",
    "result": {
      "approvalGranted": false,
      "basis": "synthetic",
      "limitations": [
        "Public or synthetic, redacted non-personal metadata only. Refere…"
      ],
      "method": "campaign-record-reconcile/1",
      "rows": [
        {
          "id": "entry-1",
          "metrics": [
            {
              "name": "duplicateId",
              "value": "0"
            }
          ],
          "relatedIds": [
            "document-1"
          ],
          "status": "clear"
        }
      ],
      "totals": [
        {
          "name": "inflowCents",
          "value": "5000"
        }
      ]
    },
    "resultHash": "sha256:33d4e7138bb41699b16cb9201136bb393bd47ba9843a2b6262459c1f4…",
    "sourceContractAmount": "80000",
    "version": "maha-legacy-adapter/1"
  },
  "proof": {
    "settlement_id": "0x00000000000000000000000000000000000000000000000000000000000000…"
  },
  "success": true
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://www.mahastrategies.com/api/v1/verify/public-finance/campaign-reconciliation' \
  -H 'content-type: application/json' \
  --data-raw '{"closingCents":"13000","commercialUseAuthorized":true,"currency":"USD","dataClass":"synthetic","noIndividualContributorInformation":true,"openingCents":"10000","records":[{"amountCents":"5000","direction":"in","documentRef":"document-1","id":"entry-1"},{"amountCents":"2000","direction":"out","documentRef":null,"id":"entry-2"}],"redactedNoPersonalData":true,"sourceSetDigest":"sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"}'

# 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://www.mahastrategies.com/api/v1/verify/public-finance/campaign-reconciliation' \
  -H 'content-type: application/json' \
  --data-raw '{"closingCents":"13000","commercialUseAuthorized":true,"currency":"USD","dataClass":"synthetic","noIndividualContributorInformation":true,"openingCents":"10000","records":[{"amountCents":"5000","direction":"in","documentRef":"document-1","id":"entry-1"},{"amountCents":"2000","direction":"out","documentRef":null,"id":"entry-2"}],"redactedNoPersonalData":true,"sourceSetDigest":"sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"}' \
  | 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 $0.010012 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.010012" });
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 $0.010012 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwww.mahastrategies.com%2Fapi%2Fv1%2Fverify%2Fpublic-finance%2Fcampaign-reconciliation&method=POST
const res = await pay("https://www.mahastrategies.com/api/v1/verify/public-finance/campaign-reconciliation", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "closingCents": "13000",
    "commercialUseAuthorized": true,
    "currency": "USD",
    "dataClass": "synthetic",
    "noIndividualContributorInformation": true,
    "openingCents": "10000",
    "records": [
      {
        "amountCents": "5000",
        "direction": "in",
        "documentRef": "document-1",
        "id": "entry-1"
      },
      {
        "amountCents": "2000",
        "direction": "out",
        "documentRef": null,
        "id": "entry-2"
      }
    ],
    "redactedNoPersonalData": true,
    "sourceSetDigest": "sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
  }),
});
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 $0.010012 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.010012"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://www.mahastrategies.com/api/v1/verify/public-finance/campaign-reconciliation",
        json={
            "closingCents": "13000",
            "commercialUseAuthorized": True,
            "currency": "USD",
            "dataClass": "synthetic",
            "noIndividualContributorInformation": True,
            "openingCents": "10000",
            "records": [
                {
                    "amountCents": "5000",
                    "direction": "in",
                    "documentRef": "document-1",
                    "id": "entry-1",
                },
                {
                    "amountCents": "2000",
                    "direction": "out",
                    "documentRef": None,
                    "id": "entry-2",
                },
            ],
            "redactedNoPersonalData": True,
            "sourceSetDigest": "sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
        },
    )
    print(res.status_code, res.text)