Content-Type: application/json
Date: {GMT Time}
Authorization: Signature ...

{
  "order_id": "10290d05-xxxx",
  "request_id": "your request_id",
  "checkout_url": "https://checkout.infini.money/pay/xxxx",
  "client_reference": "client_reference"
}

{
  "order_id": "ord-123",
  "status": "processing",
  "amount": "100",
  "currency": "USD",
  "amount_confirming": "0",
  "amount_confirmed": "0.5",
  "expires_at": 1763512195,
  "created_at": 1763512000,
  "exception_tags": ["wrong_currency"],
  "client_reference": "ORDER-001"
}

{
  "order_id": "ord-123",
  "checkout_url": "https://checkout.infini.money/pay/xxxx"
}

{
  "payment_id": "pay-123",
  "amount": "100.00",
  "address": "0x1234567890abcdef1234567890abcdef12345678",
  "expires_at": 1763512195
}

{
  "chain": "ETHEREUM",
  "token_type": "USDT",
  "amount": "6",
  "wallet_address": "0x5f716e5775b18409917e2a2f0762d29d6c385cb0",
  "note": "123"
}

{"code":0,"message":"","data":{"request_id":"e94b4e88-36c2-4550-907e-839742cf5fae"}}

{
  "code": 0,
  "message": "",
  "data": {
    "status": "completed",
    "amount": "11",
    "fee": "0.1",
    "actual_amount": "10.9",
    "transaction_hash": "0xabc123...",
    "chain": "ETHEREUM",
    "token_type": "USDT"
  }
}

Content-Type: application/json
Date: {GMT Time}
Authorization: Signature ...

{
  "order_id": "10290d05-xxxx",
  "request_id": "your request_id",
  "client_reference": "client_reference",
  "checkout_url": "https://checkout.infini.money/subscription/xxxx",
  "token": "eyJhbGciOiJIUzI1NiIs...",
  "subscription": {
    "subscription_id": "sub-xxxx",
    "merchant_sub_id": "msub_001",
    "status": "pending"
  }
}

{
  "subscription_id": "sub-xxxx",
  "merchant_sub_id": "msub_001",
  "plan_name": "Monthly Plan",
  "trigger_method": "invoice",
  "status": "active",
  "currency": "USD",
  "first_amount": "10.00",
  "amount": "9.99",
  "interval_unit": "MONTH",
  "interval_count": 1,
  "current_period_start": 1740000000,
  "current_period_end": 1742678400,
  "subscription_end_at": 0,
  "next_invoice_at": 1742592000,
  "payer_email": "user@example.com",
  "created_at": 1740000000,
  "updated_at": 1740000100
}

{
  "subscription_id": "sub-xxxx",
  "merchant_sub_id": "msub_001",
  "status": "canceled",
  "canceled_at": 1742678400,
  "cancel_reason": "by_merchant_api"
}

{
  "product_id": 1,
  "top_up_amount": "100.00",
  "token_type": "USDT",
  "user_email": "jane@example.com",
  "holder_name": "Jane Doe",
  "card_alias": "Travel card"
}

{
  "code": 0,
  "message": "",
  "data": {
    "id": "a441831c-a5c7-4bed-8f61-793738afd5bc",
    "status": "init",
    "total_top_up_amount": "100.00",
    "total_fee": "1.00",
    "total_pay_amount": "101.00",
    "message": ""
  }
}

{
  "code": 0,
  "message": "",
  "data": {
    "cards": [
      {
        "id": "a441831c-a5c7-4bed-8f61-793738afd5bc",
        "mask": "411111******1111",
        "holder_name": "Jane Doe",
        "card_alias": "Travel card",
        "status": "active",
        "currency": "USD",
        "available_balance": "50.25",
        "user_id": "usr_01HXYZ",
        "created_at": 1714464000,
        "updated_at": 1714550400
      }
    ],
    "total": 1,
    "page": 1,
    "page_size": 20,
    "total_pages": 1
  }
}

{
  "code": 0,
  "message": "",
  "data": {
    "id": "a441831c-a5c7-4bed-8f61-793738afd5bc",
    "status": "pending",
    "card_alias": "Travel card",
    "mask": "",
    "holder_name": "Jane Doe",
    "currency": "USD",
    "available_balance": "0",
    "user_id": "usr_01HXYZ",
    "created_at": 1714464000,
    "updated_at": 1714464100
  }
}

{
  "id": "a441831c-a5c7-4bed-8f61-793738afd5bc"
}

{
  "code": 0,
  "message": "",
  "data": {
    "card_number": "4111111111111111",
    "cvv": "123",
    "expiration_mmyy": "1228",
    "card_currency": "USD"
  }
}

{
  "event": "order.completed",
  "order_id": "ord-123",
  "client_reference": "ORDER-001",
  "amount": "100",
  "currency": "USD",
  "status": "paid",
  "amount_confirmed": "100",
  "amount_confirming": "0",
  "created_at": 1763512195,
  "updated_at": 1763512573,
  "exception_tags": []
}

{
  "event": "subscription.update",
  "subscription_id": "sub-xxxx",
  "merchant_sub_id": "msub_001",
  "plan_name": "Monthly Plan",
  "trigger_method": "invoice",
  "status": "active",
  "currency": "USD",
  "amount": "9.99",
  "interval_unit": "MONTH",
  "interval_count": 1,
  "payer_email": "user@example.com",
  "current_period_start": 1740000000,
  "current_period_end": 1742678400,
  "next_invoice_at": 1742592000,
  "cancel_reason": "by_merchant_api",
  "canceled_at": 1742678400,
  "created_at": 1740000000,
  "updated_at": 1740000100
}

{
  "code": 40001,
  "message": "Invalid request",
  "detail": "expires_at must be greater than current timestamp"
}

import hmac, hashlib, base64, time
from datetime import datetime, timezone
import requests

key_id = "merchant-001-prod"
secret_key = b"your-secret-key"

def create_order(amount):
    method = "POST"
    path = "/v1/acquiring/order"
    gmt_time = datetime.now(timezone.utc).strftime('%a, %d %b %Y %H:%M:%S GMT')

    signing_string = f"{key_id}\n{method} {path}\ndate: {gmt_time}\n"
    signature = base64.b64encode(
        hmac.new(secret_key, signing_string.encode(), hashlib.sha256).digest()
    ).decode()

    response = requests.post(
        f"https://openapi.infini.money{path}",
        json={
            "amount": amount,
            "currency": "USD",
            "client_reference": "ORDER-2024-001",
            "description": "Product purchase",
            "expires_at": int(time.time()) + 3600
        },
        headers={
            "Date": gmt_time,
            "Authorization": f'Signature keyId="{key_id}",algorithm="hmac-sha256",headers="@request-target date",signature="{signature}"',
            "Content-Type": "application/json"
        }
    )

    response.raise_for_status()
    return response.json()

@app.route('/create-payment', methods=['POST'])
def create_payment():
    order = create_order(amount=request.json['amount'])
    return {"checkout_url": order["checkout_url"]}

@app.route('/webhook', methods=['POST'])
def handle_webhook():
    event = request.json

    if event['event'] == 'order.completed':
        process_fulfillment(event['order_id'], event['amount_confirmed'])
    elif event['event'] == 'order.processing':
        update_order_progress(event['order_id'], event['status'])
    elif event['event'] == 'order.expired':
        mark_order_expired(event['order_id'])

    return {"status": "ok"}

def reissue_checkout_token(order_id):
    method = "POST"
    path = "/v1/acquiring/token/reissue"
    gmt_time = datetime.now(timezone.utc).strftime('%a, %d %b %Y %H:%M:%S GMT')

    signing_string = f"{key_id}\n{method} {path}\ndate: {gmt_time}\n"
    signature = base64.b64encode(
        hmac.new(secret_key, signing_string.encode(), hashlib.sha256).digest()
    ).decode()

    response = requests.post(
        f"https://api.infini.money{path}",
        json={"order_id": order_id},
        headers={
            "Date": gmt_time,
            "Authorization": f'Signature keyId="{key_id}",algorithm="hmac-sha256",headers="@request-target date",signature="{signature}"',
            "Content-Type": "application/json"
        }
    )

    response.raise_for_status()
    return response.json()