Python SDK

import hashlib
import hmac
import json
import time
import requests

class HDWaaSClient:
    def __init__(self, api_key: str, secret_key: str, base_url: str = 'https://api.2settle.io'):
        self.api_key = api_key
        self.secret_key = secret_key
        self.base_url = base_url

    def _sign(self, method: str, path: str, body: dict = None) -> tuple:
        timestamp = str(int(time.time() * 1000))
        body_str = json.dumps(body or {}, separators=(',', ':'))
        body_hash = hashlib.sha256(body_str.encode()).hexdigest()
        payload = f"{timestamp}|{method}|{path}|{body_hash}"
        hmac_key = hashlib.sha256(self.secret_key.encode()).hexdigest()
        signature = hmac.new(hmac_key.encode(), payload.encode(), hashlib.sha256).hexdigest()
        return timestamp, signature, body_str

    def _request(self, method: str, path: str, body: dict = None):
        timestamp, signature, body_str = self._sign(method, path, body)

        headers = {
            'Content-Type': 'application/json',
            'X-API-Key': self.api_key,
            'X-Timestamp': timestamp,
            'X-Signature': signature,
        }

        response = requests.request(
            method,
            f"{self.base_url}{path}",
            headers=headers,
            data=body_str if method != 'GET' else None,
        )

        return response.json()

    def create_wallet(self, network: str, crypto: str, metadata: dict = None, expires_in_minutes: int = None):
        body = {'network': network, 'crypto': crypto}
        if metadata:
            body['metadata'] = metadata
        if expires_in_minutes:
            body['expiresInMinutes'] = expires_in_minutes
        return self._request('POST', '/v1/wallets', body)

    def get_wallet(self, wallet_id: str):
        return self._request('GET', f'/v1/wallets/{wallet_id}', {})

    def list_wallets(self, status: str = None, limit: int = 50, offset: int = 0):
        params = []
        if status:
            params.append(f"status={status}")
        params.append(f"limit={limit}")
        params.append(f"offset={offset}")
        path = f"/v1/wallets?{'&'.join(params)}"
        return self._request('GET', path, {})


# Usage
client = HDWaaSClient('pk_your_api_key', 'sk_your_secret_key')

# Create USDT deposit address
result = client.create_wallet(
    network='trc20',
    crypto='USDT',
    metadata={'orderId': 'ORD-12345'},
    expires_in_minutes=60
)

print(f"Deposit address: {result['wallet']['address']}")

# Check deposit status
status = client.get_wallet(result['wallet']['id'])
print(f"Status: {status['wallet']['status']}")