(20241216) Payments requesting started, callback noting started.

api/blueprints/finstitutions/payments/callback.py

@@ -0,0 +1,194 @@
+"""
+
+    AUTHOR:
+
+        Khushal P Soonderji
+
+    DATE:
+
+        Monday, 16th Dec., 2024
+
+    OBJECTIVE:
+
+        To receive payment updates from various financial institutions.
+
+    REFERENCES:
+
+        N/A
+
+    DOWNLOADS:
+
+        N/A
+
+    NOTES:
+
+        N/A
+
+"""
+
+
+#   *****************************************************************************************************************
+#  *****                                                                                                          ****
+# ***                                                   IMPORT                                                      ***
+#  *****                                                                                                          ****
+#   *****************************************************************************************************************
+
+
+# To make sibling directories accessible for imports:
+import sys
+sys.path.append(".")
+sys.path.append("..")
+
+# For using Quart:
+from quart import Blueprint, current_app, request
+
+# My utils:
+from utils_v2.string import json
+from utils_v2.api.codes import StatusCodes, HttpCodes
+from utils_v2.api.response import ResponseModel
+from utils_v2.api.async_quart import (
+    set_api_version,
+    read_input,
+    get_session_info,
+    log_request_to_mongo,
+    log_chain_to_mongo,
+    should_not_be_under_maintenance,
+    only_whitelisted_ips,
+    limit_rate,
+    validate_input,
+    handle_cancelled_request
+)
+
+# Common:
+from shared import constants
+
+# To work with MongoDB:
+from bson.objectid import ObjectId
+
+# Data Models:
+from models.api.finstitutions.payments.request import PGPaymentRequestHeaders, PGPaymentRequestData
+from models.core.auth_token import CoreAuthTokenModel
+from models.core.payment import CorePaymentModel, PaymentEvent
+
+# For asynchronous activities:
+import asyncio
+
+
+#   *****************************************************************************************************************
+#  *****                                                                                                          ****
+# ***                                           MACROS / ONE-TIME INIT                                              ***
+#  *****                                                                                                          ****
+#   *****************************************************************************************************************
+
+
+# Related to Quart:
+pg_callback_bp = Blueprint("pg_callback", __name__)
+
+
+#   *****************************************************************************************************************
+#  *****                                                                                                          ****
+# ***                                                VARIABLES                                                      ***
+#  *****                                                                                                          ****
+#   *****************************************************************************************************************
+
+
+# --- Nothing Yet
+
+
+#   *****************************************************************************************************************
+#  *****                                                                                                          ****
+# ***                                                  FUNCTIONS                                                    ***
+#  *****                                                                                                          ****
+#   *****************************************************************************************************************
+
+
+@pg_callback_bp.record_once
+def init(blueprint_setup_state):
+
+    # This gets called when the blueprint is registered.
+    # Consider this to be a one-time setup for the whole blueprint:
+    pass
+
+
+# ---------------------------------------------------------------------------------------------------------------------
+
+
+@pg_callback_bp.route("/callback/<payment_id>", methods = ["POST"])
+@set_api_version(api_version = "1.0.0")
+@read_input(sanitize_headers = False, sanitize_data = False)
+@log_request_to_mongo(
+    attr_name = "logs_mongo",
+    project = constants.PROJECT_NAME,
+    log_type = constants.MODULE_NAME,
+    operation = "pgClbkApi",
+    log_input = True,
+    log_output = True,
+    sensitive_keys = None
+)
+@log_chain_to_mongo(attr_name = "logs_mongo")
+@should_not_be_under_maintenance(attr_name = "is_under_maintenance")
+@handle_cancelled_request()
+async def payment_event_callback(
+        payment_id: str = None,
+        inbound_headers: dict = None,
+        inbound_data: dict = None,
+        inbound_files: dict = None,
+        **kwargs
+):
+
+    """
+    We receive payment updates for various payment gateways here.
+    :param payment_id: The id of the document in MongoDB that holds the reference to the payment.
+    :param inbound_headers: auto-extracted by the decorators.
+    :param inbound_data: auto-extracted by the decorators.
+    :param inbound_files: auto-extracted by the decorators.
+    :param kwargs: Any number of extra inputs supplied by the decorators.
+    :return: A standard response structure.
+    """
+
+    # ┏┓     ┏┓              ┳  ┏
+    # ┃┓┏┓╋  ┃┃┏┓┓┏┏┳┓┏┓┏┓╋  ┃┏┓╋┏┓
+    # ┗┛┗ ┗  ┣┛┗┻┗┫┛┗┗┗ ┛┗┗  ┻┛┗┛┗┛
+    #             ┛
+
+    # payment_info = await current_app.payment_controller.get_payment_internal(
+    #     mongo_conn = current_app.data_mongo,
+    #     payment_id = ObjectId(payment_id)
+    # )
+    # print("PAYMENT INFO:", json.to_string(payment_info.model_dump(), default=str))
+
+    # For now, we just insert the event into the record:
+    event_note_success = await current_app.payment_controller.add_event(
+        mongo_conn = current_app.data_mongo,
+        payment_id = ObjectId(payment_id),
+        event = PaymentEvent(
+            paymentStatus = "unknown",
+            initByPG = True,
+            httpCode = None,
+            headers = inbound_headers,
+            payload = inbound_data
+        )
+    )
+
+    # ┳┓
+    # ┣┫┏┓┏┏┓┏┓┏┓┏┏┓
+    # ┛┗┗ ┛┣┛┗┛┛┗┛┗
+    #      ┛
+
+    # Done here:
+    return ResponseModel(
+        status_code = StatusCodes.OK if event_note_success else StatusCodes.FAILED,
+        http_code = HttpCodes.NOT_IMPLEMENTED
+    )
+
+
+#   *****************************************************************************************************************
+#  *****                                                                                                          ****
+# ***                                               MAIN PROGRAM                                                    ***
+#  *****                                                                                                          ****
+#   *****************************************************************************************************************
+
+
+if __name__ == "__main__":
+
+    pass

api/blueprints/finstitutions/payments/request.py

@@ -0,0 +1,211 @@
+"""
+
+    AUTHOR:
+
+        Khushal P Soonderji
+
+    DATE:
+
+        Monday, 16th Dec., 2024
+
+    OBJECTIVE:
+
+        To request payments from customers from various financial institutions.
+
+    REFERENCES:
+
+        N/A
+
+    DOWNLOADS:
+
+        N/A
+
+    NOTES:
+
+        N/A
+
+"""
+
+
+#   *****************************************************************************************************************
+#  *****                                                                                                          ****
+# ***                                                   IMPORT                                                      ***
+#  *****                                                                                                          ****
+#   *****************************************************************************************************************
+
+
+# To make sibling directories accessible for imports:
+import sys
+sys.path.append(".")
+sys.path.append("..")
+
+# For using Quart:
+from quart import Blueprint, current_app, request
+
+# My utils:
+from utils_v2.string import json
+from utils_v2.api.codes import StatusCodes, HttpCodes
+from utils_v2.api.response import ResponseModel
+from utils_v2.api.async_quart import (
+    set_api_version,
+    read_input,
+    get_session_info,
+    log_request_to_mongo,
+    log_chain_to_mongo,
+    should_not_be_under_maintenance,
+    only_whitelisted_ips,
+    limit_rate,
+    validate_input,
+    handle_cancelled_request
+)
+
+# Common:
+from shared import constants
+
+# To work with MongoDB:
+from bson.objectid import ObjectId
+
+# Data Models:
+from models.core.user import CoreUserInfoModel
+from models.api.finstitutions.payments.request import PGPaymentRequestHeaders, PGPaymentRequestData
+from models.core.auth_token import CoreAuthTokenModel
+
+# For asynchronous activities:
+import asyncio
+
+
+#   *****************************************************************************************************************
+#  *****                                                                                                          ****
+# ***                                           MACROS / ONE-TIME INIT                                              ***
+#  *****                                                                                                          ****
+#   *****************************************************************************************************************
+
+
+# Related to Quart:
+pg_request_bp = Blueprint("pg_request", __name__)
+
+
+#   *****************************************************************************************************************
+#  *****                                                                                                          ****
+# ***                                                VARIABLES                                                      ***
+#  *****                                                                                                          ****
+#   *****************************************************************************************************************
+
+
+# --- Nothing Yet
+
+
+#   *****************************************************************************************************************
+#  *****                                                                                                          ****
+# ***                                                  FUNCTIONS                                                    ***
+#  *****                                                                                                          ****
+#   *****************************************************************************************************************
+
+
+@pg_request_bp.record_once
+def init(blueprint_setup_state):
+
+    # This gets called when the blueprint is registered.
+    # Consider this to be a one-time setup for the whole blueprint:
+    pass
+
+
+# ---------------------------------------------------------------------------------------------------------------------
+
+
+@pg_request_bp.route("/request", methods = ["POST"])
+@set_api_version(api_version = "1.0.0")
+@read_input(sanitize_headers = False, sanitize_data = False)
+@get_session_info(key = "X-Session-Token", session_coro = "get_session")
+@log_request_to_mongo(
+    attr_name = "logs_mongo",
+    project = constants.PROJECT_NAME,
+    log_type = constants.MODULE_NAME,
+    operation = "pgReqApi",
+    log_input = True,
+    log_output = True,
+    sensitive_keys = ["sessionToken", "X-Session-Token"]
+)
+@log_chain_to_mongo(attr_name = "logs_mongo")
+@should_not_be_under_maintenance(attr_name = "is_under_maintenance")
+@validate_input(
+    header_validator = lambda x: PGPaymentRequestHeaders(**x).model_dump(),
+    data_validator = lambda x: PGPaymentRequestData(**x)
+)
+@handle_cancelled_request()
+async def request_payment(
+        inbound_headers: dict | PGPaymentRequestHeaders = None,
+        inbound_data: dict | PGPaymentRequestData = None,
+        inbound_files: dict = None,
+        **kwargs
+):
+
+    """
+    To request payments from customers through payment gateways.
+    :param inbound_headers: auto-extracted by the decorators.
+    :param inbound_data: auto-extracted by the decorators.
+    :param inbound_files: auto-extracted by the decorators.
+    :param kwargs: Any number of extra inputs supplied by the decorators.
+    :return: A standard response structure.
+    """
+
+    # ┏┓
+    # ┃┃┏┓┏┓┏┓┏┓┏┓┏┏┓┏┏
+    # ┣┛┛ ┗ ┣┛┛ ┗┛┗┗ ┛┛
+    #       ┛
+
+    # If the session token is invalid/expired:
+    if kwargs.get("session_info") is None:
+        return ResponseModel(
+            status_code = StatusCodes.FAILED,
+            http_code = HttpCodes.UNAUTHORIZED
+        )
+
+    # ┳┓            ┏┓
+    # ┣┫┏┓┏┓┓┏┏┓┏╋  ┃┃┏┓┓┏┏┳┓┏┓┏┓╋
+    # ┛┗┗ ┗┫┗┻┗ ┛┗  ┣┛┗┻┗┫┛┗┗┗ ┛┗┗
+    #      ┗             ┛
+
+    # Get the token from the token key:
+    auth_token = await current_app.payment_controller.get_token(
+        mongo_conn = current_app.data_mongo,
+        token_key = inbound_data.tokenKey
+    )
+    if auth_token is None: return ResponseModel(
+        status_code = StatusCodes.FAILED,
+        http_code = HttpCodes.UNAUTHORIZED,
+        message = f"no such token key"
+    )
+
+    # Make the request with the fetched token:
+    response = await current_app.payment_controller.request_payment(
+        mongo_conn = current_app.data_mongo,
+        http_client = current_app.http_client,
+        auth_token = auth_token,
+        user_info = CoreUserInfoModel(**kwargs["session_info"]),
+        payment_request = inbound_data
+    )
+
+    # ┳┓
+    # ┣┫┏┓┏┏┓┏┓┏┓┏┏┓
+    # ┛┗┗ ┛┣┛┗┛┛┗┛┗
+    #      ┛
+
+    # Done here:
+    return ResponseModel(
+        status_code = StatusCodes.OK if response.success else StatusCodes.FAILED,
+        http_code = HttpCodes.SUCCESS if response.success else HttpCodes.INTERNAL_SERVER_ERROR,
+        message = response.message
+    )
+
+
+#   *****************************************************************************************************************
+#  *****                                                                                                          ****
+# ***                                               MAIN PROGRAM                                                    ***
+#  *****                                                                                                          ****
+#   *****************************************************************************************************************
+
+
+if __name__ == "__main__":
+
+    pass

api/main.py

@@ -65,7 +65,8 @@ from utils_v2.goog.gmail.gmail_client import AsyncGMailClient
 # Core Controller Models:
 from controllers.core.message import CoreMessageController
 from controllers.core.auth_token import CoreAuthTokenController
-from controllers.core.ai.llm import LLMController
+from controllers.core.ai.llm import CoreLLMController
+from controllers.core.payment import CorePaymentController
 
 # API Controller Models:
 from controllers.api.mail import MailController
@@ -98,6 +99,8 @@ from api.blueprints.sms.send import sms_send_bp
 # from api.blueprints.chat.webhook import chat_webhook_bp
 from api.blueprints.software.auth import sw_auth_bp
 from api.blueprints.finstitutions.payments.auth import pg_auth_bp
+from api.blueprints.finstitutions.payments.request import pg_request_bp
+from api.blueprints.finstitutions.payments.callback import pg_callback_bp
 from api.blueprints.tech.chat_alerts import tech_chat_alert_bp
 from api.blueprints.test.callback import test_callback_bp
 from api.blueprints.ai.llm.invoke import llm_invoke_bp
@@ -140,6 +143,8 @@ app.register_blueprint(sms_send_bp, url_prefix = f"/{MODULE_BASE}/sms")
 # app.register_blueprint(chat_webhook_bp, url_prefix = f"/{MODULE_BASE}/chat")
 app.register_blueprint(sw_auth_bp, url_prefix = f"/{MODULE_BASE}/software")
 app.register_blueprint(pg_auth_bp, url_prefix = f"/{MODULE_BASE}/finstitutions/payments")
+app.register_blueprint(pg_request_bp, url_prefix = f"/{MODULE_BASE}/finstitutions/payments")
+app.register_blueprint(pg_callback_bp, url_prefix = f"/{MODULE_BASE}/finstitutions/payments")
 app.register_blueprint(tech_chat_alert_bp, url_prefix = f"/{MODULE_BASE}/tech/alert")
 app.register_blueprint(test_callback_bp, url_prefix = f"/{MODULE_BASE}/test")
 app.register_blueprint(llm_invoke_bp, url_prefix = f"/{MODULE_BASE}/ai")
@@ -334,7 +339,7 @@ async def app_startup(**kwargs):
         alert_url = current_app.script_data["alerts"]["url"],
         http_client = current_app.http_client,
         debug = enable_debugging,
-        debug_prefix = "Message (CM) | ",
+        debug_prefix = "AuthToken (CM) | ",
         debug_only_errors = True
     )
     current_app.core_message_controller = CoreMessageController(
@@ -345,6 +350,14 @@ async def app_startup(**kwargs):
         debug_prefix = "Message (CM) | ",
         debug_only_errors = True
     )
+    current_app.core_payment_controller = CorePaymentController(
+        cache = current_app.module_cache,
+        alert_url = current_app.script_data["alerts"]["url"],
+        http_client = current_app.http_client,
+        debug = enable_debugging,
+        debug_prefix = "Pymnt. (CM) | ",
+        debug_only_errors = True
+    )
 
     # ┏┓┏┓┳  ┏┓         ┓┓
     # ┣┫┃┃┃  ┃ ┏┓┏┓╋┏┓┏┓┃┃┏┓┏┓┏
@@ -377,7 +390,7 @@ async def app_startup(**kwargs):
     #            ┛
 
     # For LLMs:
-    current_app.llm = LLMController(
+    current_app.llm = CoreLLMController(
         llm_creds = {
             "model": script_cred["openAi"]["model"],
             "openai_api_key": script_cred["openAi"]["openai_api_key"]

controllers/api/mail.py

@@ -61,7 +61,7 @@ from bson import ObjectId
 from pymongo import InsertOne, UpdateOne, ReplaceOne
 
 # To work with LLMs:
-from controllers.core.ai.llm import LLMController
+from controllers.core.ai.llm import CoreLLMController
 from models.core.ai.llm import LLMInput, LLMOutput
 
 # To work with datatypes:
@@ -191,7 +191,7 @@ class MailController:
             self,
             mongo_conn: AsyncMongo,
             user_info: CoreUserInfoModel,
-            llm: LLMController,
+            llm: CoreLLMController,
             message: CoreMessageModel
     ) -> LLMOutput:
 
@@ -319,7 +319,7 @@ class MailController:
             mail_client: AsyncGMailClient,
             google_tokens: GoogleAuthTokens,
             message_id: str,
-            llm: LLMController = None,
+            llm: CoreLLMController = None,
             force_sync: bool = False
     ) -> MailSyncOneResult:
 
@@ -411,7 +411,7 @@ class MailController:
             user_info: CoreUserInfoModel,
             auth_token: CoreAuthTokenModel,
             mail_client: AsyncGMailClient,
-            llm: LLMController = None,
+            llm: CoreLLMController = None,
             force_sync: bool = False,
             start_date: datetime.datetime = None,
             end_date: datetime.datetime = None,
@@ -524,7 +524,7 @@ class MailController:
             mongo_conn: AsyncMongo,
             user_info: CoreUserInfoModel,
             token_key: ObjectId | str,
-            llm: LLMController = None,
+            llm: CoreLLMController = None,
             force_sync: bool = False,
             start_date: datetime.datetime = None,
             end_date: datetime.datetime = None,

controllers/api/payment.py

@@ -47,9 +47,10 @@ from utils_v2.database.async_mongo_v2 import AsyncMongo, AsyncMongoStorage
 # Data models:
 from models.core.user import CoreUserInfoModel
 from models.core.auth_token import CoreAuthTokenModel
-from models.core.payment import CorePaymentModel, PaymentEvent
+from models.core.payment import CorePaymentModel, PaymentEvent, CustomerDetails
 from models.api.finstitutions.payments.request import (
-    PaymentRequestOneResult
+    PGPaymentRequestData,
+    PaymentRequestOneResult,
 )
 
 # Payment Clients:
@@ -176,83 +177,118 @@ class PaymentController:
     # ┛┗┗ ┗┫┗┻┗ ┛┗  ┣┛┗┻┗┫┛┗┗┗ ┛┗┗┛
     #      ┗             ┛
 
-    # @staticmethod
+    @staticmethod
-    # async def __request_from_safaricom_m_pesa_express(
+    async def __request_from_safaricom_m_pesa_express(
-    #         http_client: httpx.AsyncClient,
+            mongo_conn: AsyncMongo,
-    #         auth_token: CoreAuthTokenModel,
+            http_client: httpx.AsyncClient,
-    #         payment: Union[SafaricomMPesaExpressRequest],
+            auth_token: CoreAuthTokenModel,
-    #         callback_url: str
+            payment_request: PGPaymentRequestData,
-    # ) -> PaymentRequestOneResult:
+            payment_id: ObjectId,
-    #
+            callback_url: str
-    #     # Start by assuming failure:
+    ) -> PaymentRequestOneResult:
-    #     request_result = PaymentRequestOneResult()
+
-    #
+        # Start by assuming failure:
-    #     # Create the client:
+        result = PaymentRequestOneResult()
-    #     client = SafaricomMPesaExpress(
+
-    #         auth = MPesaExpressAuthorization(
+        # Create the client:
-    #             consumerKey = auth_token.auth["consumerKey"],
+        client = SafaricomMPesaExpress(
-    #             consumerSecret = auth_token.auth["consumerSecret"],
+            auth = MPesaExpressAuthorization(
-    #             businessShortCode = auth_token.auth["businessShortCode"],
+                consumerKey = auth_token.auth["consumerKey"],
-    #             appPasskey = auth_token.auth["appPasskey"]
+                consumerSecret = auth_token.auth["consumerSecret"],
-    #         ),
+                businessShortCode = auth_token.auth["businessShortCode"],
-    #         http_client = http_client
+                appPasskey = auth_token.auth["appPasskey"]
-    #     )
+            ),
-    #
+            http_client = http_client
-    #     # Make the payment request:
+        )
-    #     client_response = await client.request_payment(
+
-    #         amount = payment.amount,
+        # Make the payment request:
-    #         party_a = payment.partyA,
+        client_response = await client.request_payment(
-    #         type = payment.transactionType,
+            amount = payment_request.amount,
-    #         reference = payment.accountReference,
+            party_a = payment_request.customerNo,
-    #         description = payment.transactionDescription,
+            type = "CustomerPayBillOnline",
-    #         callback_url = callback_url,
+            reference = payment_request.reference,
-    #         payer_no = payment.phoneNo,
+            description = payment_request.description,
-    #         party_b = payment.partyB
+            callback_url = callback_url,
-    #     )
+            payer_no = payment_request.payerNo,
-    #
+            party_b = auth_token.auth["businessShortCode"]
-    #     # Construct the payment details:
+        )
-    #     payment_details = CorePaymentModel(
+
-    #         user = None,
+        # Add this event to the payment's document:
-    #         lastEventTs = date_time.get_current_utc_date_time(as_string = False),
+        event_note_success = await current_app.core_payment_controller.add_event(
-    #         lastPaymentStatus = "initiated" if client_response.success else "initFailed",
+            mongo_conn = mongo_conn,
-    #         tokenId = auth_token.authTokenId,
+            payment_id = payment_id,
-    #         amount = payment.amount,
+            event = PaymentEvent(
-    #         curencyCode = "KES",
+                paymentStatus = "initiated" if client_response.success else "initFailed",
-    #         # metadata = payment.
+                initByPG = False,
-    #     )
+                httpCode = client_response.httpCode,
-    #
+                headers = await client_response.get_headers(),
-    #     # Done here:
+                payload = await client_response.get_json()
-    #     request_result.success = client_response.success
+            )
-    #     request_result.message = client_response.message
+        )
-    #     request_result.message = client_response.message
+
-    #     return request_result
+        # Done here:
-    #
+        result.success = client_response.success and event_note_success
-    # async def request_payment(
+        result.message = "; ".join([
-    #         self,
+            "payment request successfully" if client_response.success else "payment request failed",
-    #         mongo_conn: AsyncMongo,
+            "event noted successfully" if event_note_success else "payment event noting failed",
-    #         http_client: httpx.AsyncClient,
+        ])
-    #         auth_token: CoreAuthTokenModel,
+        return result
-    #         payment: Union[SafaricomMPesaExpressRequest],
+
-    #         callback_url: str
+    async def request_payment(
-    # ) -> PaymentRequestOneResult:
+            self,
-    #
+            mongo_conn: AsyncMongo,
-    #     # Start by assuming failure:
+            http_client: httpx.AsyncClient,
-    #     request_result = PaymentRequestOneResult()
+            auth_token: CoreAuthTokenModel,
-    #
+            user_info: CoreUserInfoModel,
-    #     # Now we route the message to the appropriate client:
+            payment_request: PGPaymentRequestData,
-    #     match auth_token.client:
+    ) -> PaymentRequestOneResult:
-    #         case "safaricomMPesaExpress":
+
-    #             request_result = await self.__request_from_safaricom_m_pesa_express(
+        # Start by assuming failure:
-    #                 http_client = http_client,
+        request_result = PaymentRequestOneResult()
-    #                 auth_token = auth_token,
+
-    #                 payment = payment,
+        # Create a basic database entry to note down the intended payment:
-    #                 callback_url = callback_url
+        payment_id = await current_app.core_payment_controller.init(
-    #             )
+            mongo_conn = mongo_conn,
-    #         case _:
+            payment = CorePaymentModel(
-    #             request_result.message = f"invalid client {auth_token.client}"
+                user = user_info,
-    #
+                customer = CustomerDetails(
-    #     # Done here:
+                    name = payment_request.customerName,
-    #     return request_result
+                    contactNo = payment_request.customerNo,
+                    payerNo = payment_request.payerNo,
+                    email = payment_request.email
+                ),
+                lastPaymentStatus = "queued",
+                tokenId = auth_token.authTokenId,
+                amount = payment_request.amount,
+                currencyCode = payment_request.currencyCode,
+                metadata = payment_request.metadata,
+                tags = ["payment", "safaricom", "mPesaExpress", "kenya"],
+                client = auth_token.client,
+                clientPaymentReferenceId = None,
+                events = []
+            )
+        )
+        if payment_id is None:
+            request_result.message = "failed to queue the payment"
+            return request_result
+        else: request_result.message = "payment has been queued for processing"
+
+        # Now we route the request to the appropriate client:
+        match auth_token.client:
+            case "safaricomMPesaExpress":
+                request_result = await self.__request_from_safaricom_m_pesa_express(
+                    http_client = http_client,
+                    mongo_conn = mongo_conn,
+                    auth_token = auth_token,
+                    payment_request = payment_request,
+                    callback_url = f"https://api.thecaoffice.com/finstitutions/payments/callback/{payment_id}",
+                    payment_id = payment_id
+                )
+            case _:
+                request_result = None
+
+        # Done here:
+        return request_result
 
     # ┓ •         ┓  ┏┓     ┏┓
     # ┃ ┓┏╋  ┏┓┏┓┏┫  ┃┓┏┓╋  ┃┃┏┓┓┏┏┳┓┏┓┏┓╋┏
@@ -299,6 +335,18 @@ class PaymentController:
             payment_id = payment_id
         )
 
+    @staticmethod
+    async def get_payment_internal(
+            mongo_conn: AsyncMongo,
+            payment_id: ObjectId | str
+    ) -> CorePaymentModel | None:
+
+        # Simply call the core model:
+        return await current_app.core_payment_controller.get_payment_internal(
+            mongo_conn = mongo_conn,
+            payment_id = payment_id
+        )
+
     # ┳┳   ┓
     # ┃┃┏┓┏┫┏┓╋┏┓
     # ┗┛┣┛┗┻┗┻┗┗

controllers/core/ai/llm.py

@@ -85,7 +85,7 @@ from langchain_openai import ChatOpenAI
 #   *****************************************************************************************************************
 
 
-class LLMController(BaseModel):
+class CoreLLMController(BaseModel):
 
     AI_USAGE_COLLECTION = "_aiUsage"
 

controllers/core/payment.py

@@ -134,10 +134,14 @@ class CorePaymentController(BaseModel):
         :return: The object id of the inserted document.
         """
 
+        # Receive te JSON:
+        payment_json = payment.model_dump()
+        payment_json.pop("_id")
+
         # Simply insert the document:
         return await mongo_conn.insert_one(
             collection = self.PAYMENTS_COLLECTION,
-            document = payment,
+            document = payment_json,
             raise_exception = True
         )
 
@@ -253,6 +257,34 @@ class CorePaymentController(BaseModel):
         # we return it as our data model:
         return CorePaymentModel(**record)
 
+    async def get_payment_internal(
+            self,
+            mongo_conn: AsyncMongo,
+            payment_id: ObjectId | str,
+    ) -> CorePaymentModel | None:
+
+        """
+        NOTE: DO NOT USE THIS IN USER-FACING APIS. USE THIS INTERNALLY TO FETCH RECORDS.
+        Gets one payment detail if you know its payment id.
+        :param mongo_conn: The instance of the database connector to use for the operation.
+        :param payment_id: The id of the payment detail that needs to be read.
+        :return: The contents of that one payment detail in a structured format.
+        """
+
+        # We fetch the whole payload of that one message:
+        record = await mongo_conn.find_one(
+            collection = self.PAYMENTS_COLLECTION,
+            filter = {"_id": ObjectId(payment_id)},
+            raise_exception = True
+        )
+
+        # If no such message was found:
+        if record is None: return None
+
+        # If a record was found,
+        # we return it as our data model:
+        return CorePaymentModel(**record)
+
     # ┏┓┳┓┳┳┳┓      ┳┳   ┓
     # ┃ ┣┫┃┃┃┃  ━━  ┃┃┏┓┏┫┏┓╋┏┓
     # ┗┛┛┗┗┛┻┛      ┗┛┣┛┗┻┗┻┗┗
@@ -265,7 +297,8 @@ class CorePaymentController(BaseModel):
             self,
             mongo_conn: AsyncMongo,
             payment_id: ObjectId | str,
-            event: PaymentEvent
+            event: PaymentEvent,
+            client_reference_id: str = None
     ) -> bool:
 
         """
@@ -273,14 +306,28 @@ class CorePaymentController(BaseModel):
         :param mongo_conn: The instance of the database connector to use for the operation.
         :param payment_id: The id of the payment detail that needs to be read.
         :param event: The event that occurred. This will typically be generated by the third-party client.
+        :param client_reference_id: The way the client identifies this payment. You need to pass this only on the first
+            event. Typically, when you initiate the payment request.
         :return: True if successfully noted, else False.
         """
 
+        # Prepare the update document:
+        update_json = {
+            "$push": {
+                "events": event.model_dump()
+            },
+            "$set": {
+                "lastEventTs": date_time.get_current_ist_date_time(as_string = False),
+                "lastPaymentStatus": event.paymentStatus
+            }
+        }
+        if client_reference_id: update_json["$set"]["clientPaymentReferenceId"] = client_reference_id
+
         # Try to update the existing record:
         return await mongo_conn.update_one(
             collection = self.PAYMENTS_COLLECTION,
             filter = {"_id": ObjectId(payment_id)},
-            update = {"$push": {"events": event}},
+            update = update_json,
             upsert = False,
             raise_exception = True
         )

models/api/finstitutions/payments/request.py

@@ -110,17 +110,6 @@ class PGPaymentRequestHeaders(BaseModel):
 
 class PGPaymentRequestData(BaseModel):
 
-    # {
-    #     "customerMobileNumber": "",
-    #     "tokenId": "",
-    #     "description": "",
-    #     "payerNumber": "",
-    #     "amount": "",
-    #     "currency": "",
-    #     "emailAddress": "",
-    #     "reference": "",
-    # }
-
     tokenKey: ObjectId = Field(
         description = "the auth token to use to send this message",
         frozen = True,
@@ -164,6 +153,16 @@ class PGPaymentRequestData(BaseModel):
         examples = ["INR", "USD", "KES"]
     )
 
+    reference: str = Field(
+        description = "some reference against which the payment was made",
+        frozen = True
+    )
+
+    description: str = Field(
+        description = "a short, human-readable description of the payment",
+        frozen = True
+    )
+
     metadata: dict = Field(
         description = "any extra information about this payment",
         frozen = True
@@ -210,11 +209,6 @@ class PaymentRequestOneResult(BaseModel):
         default = None
     )
 
-    paymentDetails: CorePaymentModel = Field(
-        description = "the actual data of the payment",
-        default = None
-    )
-
     # ┏┓    ┏•
     # ┃ ┏┓┏┓╋┓┏┓
     # ┗┛┗┛┛┗┛┗┗┫

models/core/payment.py

@@ -138,17 +138,20 @@ class PaymentEvent(BaseModel):
 
     eventTs: AwareDatetime = Field(
         description = "to know the date and time (utc) of this update",
-        frozen = True
+        frozen = True,
+        default_factory = lambda: date_time.get_current_utc_date_time(as_string = False)
     )
 
     paymentStatus: Literal[
-        "initFailed",  # ... When we tried to initiate the request, but the payment gateway (PG) rejected it.
+        "queued",  # ....... When the UI sends a payment request, but the payment gateway (PG) hasn't received it yet.
+        "initFailed",  # ... When we tried to initiate the request, but the PG rejected it.
         "initiated",  # .... When we made a successful payment request, or the customer initiated one from the PG.
         "failed",  # ....... When the customer tried paying, but it failed (e.g.: because of an incorrect pin).
         "rejected",  # ..... When the customer explicitly rejected the payment.
         "authorized",  # ... When the customer made the payment (but it hasn't been settled in your account yet).
         "settled",  # ...... When the PG sends the money to your account.
         "refunded",  # ..... When the money was refunded to the client.
+        "unknown"  # ....... When integrating a new gateway and some specific status is not known.
     ] = Field(
         description = "the status of the payment request to see what stage of the process we are in",
         frozen = False
@@ -220,9 +223,10 @@ class CorePaymentModel(BaseModel):
         default_factory = lambda: date_time.get_current_utc_date_time(as_string = False)
     )
 
-    lastEventTs: AwareDatetime = Field(
+    lastEventTs: AwareDatetime | None = Field(
         description = "the time (utc) at which the last event occurred",
-        frozen = True
+        frozen = True,
+        default = None
     )
 
     lastPaymentStatus: str = Field(
@@ -263,7 +267,7 @@ class CorePaymentModel(BaseModel):
         frozen = True
     )
 
-    clientPaymentReferenceId: int | str = Field(
+    clientPaymentReferenceId: int | str | None = Field(
         description = "the reference id given by the third-party client",
         frozen = False,
         default = None
@@ -271,7 +275,8 @@ class CorePaymentModel(BaseModel):
 
     events: List[PaymentEvent] = Field(
         description = "an array of all the events that happened in the process of this payment",
-        frozen = False
+        frozen = False,
+        default = []
     )
 
     # ┏┓    ┏•
@@ -296,6 +301,7 @@ class CorePaymentModel(BaseModel):
         payment_json = {
             "paymentId": str(self.messageId),
             "user": self.user,
+            "customer": self.customer,
             "ts": self.ts.isoformat(),
             "lastEventTs": self.lastEventTs,
             "lastPaymentStatus": self.lastPaymentStatus,
@@ -320,6 +326,7 @@ class CorePaymentModel(BaseModel):
         return {
             "paymentId": str(self.messageId),
             "user": self.user,
+            "customer": self.customer,
             "ts": self.ts.isoformat(),
             "lastEventTs": self.lastEventTs,
             "lastPaymentStatus": self.lastPaymentStatus,
@@ -335,7 +342,7 @@ class CorePaymentModel(BaseModel):
     # ┃┃┏┓┃┓┏┫┏┓╋┓┏┓┏┓
     # ┗┛┗┻┗┗┗┻┗┻┗┗┗┛┛┗
 
-    @field_validator("lastEventTs", mode = "before")
+    @field_validator("ts", "lastEventTs", mode = "before")
     def parse_date_time(cls, value):
         return date_time.parse_date_time(input_value = value, timezone = date_time.TIMEZONE_UTC)
 

ssh_server.sh

@@ -19,11 +19,12 @@ if [[ $SELECTION -gt 0 && $SELECTION -le ${#SERVERS[@]} ]]; then
     # Note down the selection in a variable:
     SELECTED_SERVER=${SERVERS[$((SELECTION - 1))]}
 
-    # Ask the user which directory he wants to upload and his username on the server:
+    # Ask the username and target port no. on the server::
     read -rp "Your username on the server ..... : " USER
+    read -rp "The target port no. ............. : " PORT
 
     # Run the command:
-    ssh -p 19991 "$USER@$SELECTED_SERVER"
+    ssh -p "$PORT" "$USER@$SELECTED_SERVER"
 
     # Exit with success (assuming that the actual data sending went well):
     echo "session ended"

utils_v2/payments/safaricom/controllers/m_pesa_express.py

@@ -355,7 +355,7 @@ class SafaricomMPesaExpress:
             api_json = await api_response.get_json()
             api_response.message = api_json.get("ResponseDescription", "N/A")
             api_response.data = api_json
-            api_response.success = True
+            api_response.success = True if str(api_json.get("ResponseCode")) == "0" else False
 
         # Done here:
         return api_response

utils_v2/payments/safaricom/models/api_call.py

@@ -109,6 +109,10 @@ class MPesaExpressApiResponse(BaseModel):
         message += f"*EXCEPTION:*\n`{self.exception.__class__.__name__}: {str(self.exception)}`\n\n"
         return message
 
+    async def get_headers(self):
+        try: return self.response.headers
+        except: return {}
+
     async def get_json(self):
         try: return self.response.json()
         except: return {}