RFC 9421 HTTP Signatures Signer

import json, time
from algovoi_rfc9421_signer import sign_request

SEED = bytes.fromhex("9d61b19deffd5a60ba844af492ec2cc44449c5697b326919703bac031cae3d55")
body = json.dumps({"recipient_address": "ALGO...", "network": "algorand"}, separators=(",", ":")).encode()

sig = sign_request(
    method="POST",
    authority="api.algovoi.co.uk",
    path="/compliance/screen",
    body=body,
    private_key=SEED,
    keyid="did:web:api.algovoi.co.uk",
    created=int(time.time()),
)

# Attach to your HTTP request:
headers = {
    "Content-Type": "application/json",
    "Signature-Input": sig.signature_input,
    "Signature": sig.signature,
    "Content-Digest": sig.content_digest,
    "X-Signer-Pubkey": "<your-ed25519-public-key-hex>",
}

import { signRequest } from "@algovoi/rfc9421-signer";

const body = Buffer.from(
  JSON.stringify({ recipient_address: "ALGO...", network: "algorand" })
);

const sig = await signRequest({
  method: "POST",
  authority: "api.algovoi.co.uk",
  path: "/compliance/screen",
  body,
  privateKey: SEED_HEX,
  keyid: "did:web:api.algovoi.co.uk",
  created: Math.floor(Date.now() / 1000),
});

const headers = {
  "Content-Type": "application/json",
  "Signature-Input": sig.signatureInput,
  Signature: sig.signature,
  "Content-Digest": sig.contentDigest,
  "X-Signer-Pubkey": "<your-ed25519-public-key-hex>",
};

import httpx

with httpx.Client(timeout=30) as client:
    resp = client.post(
        "https://api.algovoi.co.uk/compliance/screen",
        content=body,
        headers=headers,
    )

data = resp.json()
print(data["request_signature_verified"])  # True
print(data["request_signature_keyid"])     # "did:web:api.algovoi.co.uk"
print(data["verdict"])                     # "allow" | "flag" | "block"