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"""Payment API service"""
# TODO: Implement payment endpoints
from fastapi import FastAPI, Request, HTTPException
from pydantic import BaseModel
from datetime import datetime
import random
import uvicorn
import logging
from typing import Dict, Any
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
app = FastAPI(
title="Invoice Payment API",
description="Payment processing simulation for invoice automation",
version="1.0.0",
root_path="/spaces/PARTHA181098/InvoicePaymentAPI"
)
TRANSACTIONS: Dict[str, Dict[str, Any]] = {}
PAYMENT_METRICS = {
'total_transactions': 0,
'successful_payments': 0,
'failed_payments': 0,
'cancelled_payments': 0,
'last_transaction_time': None
}
class PaymentRequest(BaseModel):
order_id: str
customer_name: str
amount: float
currency: str = 'USD'
method: str = 'bank_transfer'
recipient_account: str = 'default_account'
due_date: str
class PaymentResponse(BaseModel):
transaction_id: str
status: str
message: str
processed_at: str
@app.get("/")
async def root():
return {'message': 'Welcome to the Invoice Payment API', 'version': '1.0.0'}
@app.get("/health")
async def health_check():
return {
'status': 'healthy',
'timestamp': datetime.utcnow().isoformat(),
'uptime': 'OK'
}
@app.post("/initiate_payment")
async def initiate_payment(payment_request: PaymentRequest):
transaction_id = f"txn_{int(datetime.utcnow().timestamp())}_{random.randint(1000,9999)}"
PAYMENT_METRICS['total_transactions'] += 1
PAYMENT_METRICS['last_transaction_time'] = datetime.utcnow().isoformat()
success_chance = 0.85
if random.random() < success_chance:
status = 'SUCCESS'
message = f"Payment of {payment_request.amount} {payment_request.currency} successful."
PAYMENT_METRICS['successful_payments'] += 1
else:
status = 'FAILED'
message = 'Payment failed due to simulated gateway error.'
PAYMENT_METRICS['failed_payments'] += 1
transaction_data = {
'transaction_id': transaction_id,
'order_id': payment_request.order_id,
'customer_name': payment_request.customer_name,
'amount': payment_request.amount,
'currency': payment_request.currency,
'method': payment_request.method,
'recipient_account': payment_request.recipient_account,
'status': status,
'message': message,
'created_at': datetime.utcnow().isoformat(),
'updated_at': datetime.utcnow().isoformat()
}
TRANSACTIONS[transaction_id] = transaction_data
logger.info(f"Processed payment transaction {transaction_id} with status: {status}")
return PaymentResponse(
transaction_id=transaction_id,
status=status,
message=message,
processed_at=transaction_data['updated_at']
)
@app.get("/transaction/{transaction_id}")
async def get_transaction_status(transaction_id: str):
transaction = TRANSACTIONS.get(transaction_id)
if not transaction:
raise HTTPException(status_code=404, detail="Transaction not found")
return transaction
@app.post("/cancel_payment/{transaction_id}")
async def cancel_payment(transaction_id: str):
transaction = TRANSACTIONS.get(transaction_id)
if not transaction:
raise HTTPException(status_code=400, detail="Cannot cancel a non-existent payment")
if transaction['status'] in ['SUCCESS', 'FAILED']:
raise HTTPException(status_code=400, detail="Cannot cancel a completed payment")
transaction['status'] = 'CANCELLED'
transaction['updated_at'] = datetime.utcnow().isoformat()
PAYMENT_METRICS['cancelled_payments'] += 1
logger.info(f"Cancelled payment transaction: {transaction_id}")
return {
'transaction_id': transaction_id,
'status': 'CANCELLED',
'message': 'Payment has been cancelled successfully'
}
@app.get("/payment_methods")
async def get_payment_methods():
return {
'available_methods': [
'bank_transfer',
'credit_card',
'paypal',
'upi',
'crypto'
],
'default_method': 'bank_transfer'
}
@app.get("/metrics")
async def get_metrics():
return {
'metrics': PAYMENT_METRICS,
'active_transactions': len(TRANSACTIONS)
}
# if __name__ == "__main__":
# uvicorn.run(app, host="0.0.0.0", port=8001) |