from typing import Optional, List, Dict, Any
import requests
from datetime import datetime
from paytmchecksum import PaytmChecksum
from config.settings import settings
import json
import datetime
class OrderListService:
def __init__(self, key_secret: str, mid: str):
"""
Initialize the OrderListService with Paytm credentials.
Args:
key_secret (str): Paytm merchant key secret
mid (str): Paytm merchant ID
"""
self.key_secret = key_secret
self.mid = mid
self.base_url = settings.PAYTM_BASE_URL
def fetch_order_list(
self,
from_date: str,
to_date: str,
order_search_type: str = "TRANSACTION",
order_search_status: str = "SUCCESS",
page_number: int = 1,
page_size: int = 50,
is_sort: bool = True
) -> str:
"""
Fetch the list of orders from Paytm.
Args:
from_date (str): Start date in ISO format (YYYY-MM-DDTHH:mm:ss+HH:mm)
to_date (str): End date in ISO format (YYYY-MM-DDTHH:mm:ss+HH:mm)
order_search_type (str): Type of order search (default: TRANSACTION)
order_search_status (str): Status of orders to search for (default: SUCCESS)
page_number (int): Page number for pagination (default: 1)
page_size (int): Number of records per page (default: 50)
is_sort (bool): Whether to sort results by order date (default: True)
Returns:
str: Formatted string containing order list details
"""
try:
# Prepare request body
body = {
"mid": self.mid,
"fromDate": from_date,
"toDate": to_date,
"orderSearchType": order_search_type,
"pageNumber": str(page_number),
"pageSize": str(page_size),
"isSort": is_sort
}
# Add optional parameters if provided
if order_search_status:
body["orderSearchStatus"] = order_search_status
signature = PaytmChecksum.generateSignature(json.dumps(body), self.key_secret)
# Prepare request head
head = {
"tokenType": "CHECKSUM",
"signature": signature
}
# Make API request
response = requests.post(
f"{self.base_url}/merchant-passbook/search/list/order/v2",
json={"head": head, "body": body},
headers={"Content-Type": "application/json"}
)
# Check if response is successful
response.raise_for_status()
# Try to get response text first
response_text = response.text
if not response_text:
return "Empty response received from Paytm API"
try:
response_data = json.loads(response_text)
except json.JSONDecodeError as e:
return f"Invalid JSON response from Paytm API: {str(e)}"
# Check if the response is successful - resultInfo is in body
result_info = response_data.get("body", {}).get("resultInfo", {})
if result_info.get("resultStatus") != "SUCCESS":
error_msg = result_info.get("resultMsg", "Unknown error")
return f"Error fetching order list: {error_msg}"
# Get orders from response
orders = response_data.get("body", {}).get("orders", [])
if not orders:
return "No orders found for the given criteria."
# Format the response
result = "Order List:\n"
for order in orders:
result += f"\nOrder ID: {order.get('merchantOrderId', 'N/A')}"
result += f"\nTransaction ID: {order.get('txnId', 'N/A')}"
result += f"\nAmount: ₹{order.get('amount', 'N/A')}"
result += f"\nPayment Mode: {order.get('payMode', 'N/A')}"
result += f"\nCreated Time: {order.get('orderCreatedTime', 'N/A')}"
result += f"\nCompleted Time: {order.get('orderCompletedTime', 'N/A')}"
result += f"\nStatus: {order.get('orderSearchStatus', 'N/A')}"
result += f"\nMerchant Name: {order.get('merchantName', 'N/A')}"
if order.get('vanId'):
result += f"\nVAN ID: {order.get('vanId')}"
if order.get('rrn'):
result += f"\nRRN: {order.get('rrn')}"
if order.get('vanIfscCode'):
result += f"\nVAN IFSC Code: {order.get('vanIfscCode')}"
result += "\n" + "-"*50
# Add pagination info
result += f"\n\nPage {page_number}"
result += f"\nTotal Records: {len(orders)}"
return result
except requests.exceptions.RequestException as e:
return f"Failed to fetch order list: {str(e)}"
except Exception as e:
return f"Unexpected error while fetching order list: {str(e)}"
