Merge branch 'bank-simbrella-calls' into vivian-update-01

.gitignore

@@ -5,3 +5,4 @@ app.log
 migrations/__pycache__/
 migrations/*.pycg
 ./vscode
+.vscode/settings.json

app/__init__.py

@@ -26,6 +26,7 @@ def create_app():
     CORS(app)
 
     JWTManager(app)
+    CORS(app, supports_credentials=True) 
 
     # Swagger Doc
     SWAGGER_URL = app.config.get("SWAGGER_URL")

app/api/integrations/__init__.py

@@ -1 +1,2 @@
-from .simbrella import SimbrellaClient
+from .simbrella import SimbrellaIntegration
+from .kafka import KafkaIntegration

app/api/integrations/kafka.py

@@ -0,0 +1,82 @@
+from confluent_kafka import Producer
+import json
+import logging
+from app.config import settings
+
+logger = logging.getLogger(__name__)
+
+
+class KafkaIntegration:
+    _producer = None
+    _config = {
+        "bootstrap.servers": settings.KAFKA_BROKER,
+        "client.id": "loan-service-producer",
+        "acks": "all",
+        "retries": 3,
+        "debug": "broker,topic,msg",
+    }
+
+    @staticmethod
+    def _get_producer():
+        """Kafka producer"""
+        if not KafkaIntegration._producer:
+            KafkaIntegration._producer = Producer(KafkaIntegration._config)
+
+            logger.info(
+                f"Connected to Kafka broker at {KafkaIntegration._config['bootstrap.servers']}"
+            )
+
+        return KafkaIntegration._producer
+
+
+    @staticmethod
+    def delivery_report(err, msg):
+        """Called once for each message produced"""
+        if err is not None:
+
+            logger.error(f'Message delivery failed: {err}')
+            raise RuntimeError(f"Message delivery failed: {err}")
+        
+        else:
+            logger.debug(f'Message delivered to {msg.topic()} [{msg.partition()}] @ offset {msg.offset()}')
+
+
+
+    @staticmethod
+    def send_loan_request(loan_data, request_id):
+        """
+        Send loan request to PROCESS_PAYMENT topic
+
+        Args:
+            loan_data: Loan request payload as dict
+            request_id: Unique request identifier (used as Kafka key)
+        """
+        try:
+
+            # Proceed to send loan request to Kafka
+            producer = KafkaIntegration._get_producer()
+
+            # Sending loan request message to Kafka
+            producer.produce(
+                topic="PROCESS_PAYMENT",
+                key=str(request_id),
+                value=json.dumps(loan_data).encode("utf-8"),
+                callback=KafkaIntegration.delivery_report,
+
+            )
+
+            producer.poll(0)
+
+            logger.info(f"Loan request {request_id} queued for processing")
+
+        except Exception as e:
+            logger.error(
+                f"Failed to send loan request to Kafka: {str(e)}", exc_info=True
+            )
+            raise Exception(f"Failed to send loan request to Kafka: {str(e)}")
+
+    @staticmethod
+    def flush():
+        """Shutdown"""
+        producer = KafkaIntegration._get_producer()
+        producer.flush()

app/api/integrations/simbrella.py

@@ -2,7 +2,7 @@ import requests
 from app.utils.logger import logger
 from app.config import settings
 
-class SimbrellaClient:
+class SimbrellaIntegration:
     BASE_URL = settings.SIMBRELLA_BASE_URL
 
     @staticmethod
@@ -10,7 +10,7 @@ class SimbrellaClient:
         """
         Calls the RACCheck endpoit
         """
-        url = f"{SimbrellaClient.BASE_URL}/RACCheck"
+        url = f"{SimbrellaIntegration.BASE_URL}/RACCheck"
         
         payload = {
             "customerId": customer_id,
@@ -37,10 +37,9 @@ class SimbrellaClient:
             response = requests.post(url, json=payload, timeout=10)
 
             # Raise an error for non-200 responses
-            # response.raise_for_status()  
+            response.raise_for_status()  
-
 
             return response.json()
         except requests.exceptions.RequestException as err:
             logger.error(f"RACCheck API call failed: {str(err)}", exc_info=True)
-            return {"error": "RACCheck API error", "details": str(err)}
+            return {"error": "RACCheck API error"}

app/api/middlewares/app_id_checker.py

@@ -15,12 +15,12 @@ def require_app_id(f):
 
         if not app_id:
             logger.error("Unauthorized access: Missing App-ID.")
-            return jsonify({"message": "Invalid request parameters"}), 400
+            return jsonify({"message": "Invalid request"}), 400
 
 
         if app_id != VALID_APP_ID:
             logger.error(f"Unauthorized access: Invalid App-ID {app_id}.")
-            return jsonify({"message": "Invalid request parameters"}), 400
+            return jsonify({"message": "Invalid request"}), 400
 
         return f(*args, **kwargs)
 

app/api/middlewares/basic_auth.py

@@ -11,7 +11,7 @@ def require_auth(f):
     def decorated(*args, **kwargs):
         auth = request.headers.get('Authorization')
         if not auth or not check_auth(auth):
-            return jsonify({"message": "Invalid request parameters"}), 401
+            return jsonify({"message": "Invalid request"}), 401
         return f(*args, **kwargs)
     return decorated
 

app/api/middlewares/cors.py

@@ -4,4 +4,4 @@ from flask import request, jsonify
 def enforce_json():
     """Middleware to enforce JSON Content-Type for incoming requests"""
     if request.method in ["POST", "PUT", "PATCH"] and request.content_type != "application/json":
-        return jsonify({"message": "Invalid request parameters"}), 400
+        return jsonify({"message": "Invalid request"}), 400

app/api/middlewares/verify_api_key.py

@@ -14,11 +14,11 @@ def require_api_key(f):
 
         if not api_key:
             logger.error("Unauthorized access: Missing API key.")
-            return jsonify({"message": "Invalid request parameters"}), 400
+            return jsonify({"message": "Invalid request"}), 400
 
         if api_key != VALID_API_KEY:
             logger.error("Unauthorized access: Invalid API key.")
-            return jsonify({"message": "Invalid request parameters"}), 400
+            return jsonify({"message": "Invalid request"}), 400
 
         return f(*args, **kwargs)
 

app/api/services/eligibility_check.py

@@ -4,7 +4,7 @@ from app.api.services.base_service import BaseService
 from app.api.schemas.eligibility_check import EligibilityCheckSchema
 from marshmallow import ValidationError
 from app.api.enums import TransactionType
-from app.api.integrations import SimbrellaClient
+from app.api.integrations import SimbrellaIntegration
 
 class EligibilityCheckService(BaseService):
     TRANSACTION_TYPE = TransactionType.ELIGIBILITY_CHECK 
@@ -42,14 +42,14 @@ class EligibilityCheckService(BaseService):
                     }), 400
             
              # Call RACCheck
-            response = SimbrellaClient.rac_check(
+            response = SimbrellaIntegration.rac_check(
                 customer_id = customer_id,
                 account_id = account_id,
                 transaction_id = transaction.id,
             )
 
             if "error" in response or response.get("status") != 200:
-                return jsonify({"message": "RACCheck failed", "error": response.get("message", response)}), 400
+                return jsonify({"message": "RACCheck failed"}), 400
 
             
 

app/api/services/loan_status.py

@@ -22,10 +22,11 @@ class LoanStatusService(BaseService):
         """
         try:
             validated_data = LoanStatusService.validate_data(data, LoanStatusSchema())
-            account_id = validated_data.get('accountId')
             customer_id =  validated_data.get('customerId')
+            customer = LoanStatusService.get_or_create_customer(validated_data)
+            account = customer.accounts[0]
 
-            if (LoanStatusService.validate_account_ownership(account_id = account_id, customer_id = customer_id)):
+            if (LoanStatusService.validate_account_ownership(account_id = account.id, customer_id = customer_id)):
                 transaction = LoanStatusService.log_transaction(validated_data = validated_data)
 
                 if not transaction:

app/api/services/provide_loan.py

@@ -1,9 +1,13 @@
 from flask import request, jsonify
 from marshmallow import ValidationError
+from app.api.integrations.kafka import KafkaIntegration
 from app.api.services.base_service import BaseService
 from app.api.enums import TransactionType   
 from app.utils.logger import logger
 from app.api.schemas.provide_loan import ProvideLoanSchema
+from app.api.integrations import KafkaIntegration
+from threading import Thread
+
 
 class ProvideLoanService(BaseService):
     TRANSACTION_TYPE = TransactionType.PROVIDE_LOAN 
@@ -24,6 +28,7 @@ class ProvideLoanService(BaseService):
             validated_data = ProvideLoanService.validate_data(data, ProvideLoanSchema())
             account_id = validated_data.get('accountId')
             customer_id =  validated_data.get('customerId')
+            request_id =  validated_data.get('requestId')
 
             if (ProvideLoanService.validate_account_ownership(account_id = account_id, customer_id = customer_id)):
                 transaction = ProvideLoanService.log_transaction(validated_data = validated_data)
@@ -40,16 +45,20 @@ class ProvideLoanService(BaseService):
            
            
             response_data = {
-                "requestId": "202111170001371256908",
+                "requestId": request_id,
                 "transactionId": "Tr201712RK9232P115",
-                "customerId": "CN621868",
+                "customerId": customer_id,
-                "accountId": "ACN8263457",
+                "accountId": account_id,
                 "msisdn": "3451342",
                 "resultCode": "00",
                 "resultDescription": "Successful"
                 }
 
 
+            # KafkaIntegration.send_loan_request(loan_data = response_data, request_id = request_id)
+            # Call Kafka in a background thread
+            thread = Thread(target=ProvideLoanService.async_send_to_kafka, args=(response_data, request_id))
+            thread.start()
 
             return response_data
 
@@ -73,3 +82,10 @@ class ProvideLoanService(BaseService):
             return jsonify({
                 "message": "Internal Server Error"
                 }) , 500
+        
+    
+    def async_send_to_kafka(loan_data, request_id):
+        KafkaIntegration.send_loan_request(loan_data = loan_data, request_id = request_id)
+        KafkaIntegration.flush()
+
+

app/config.py

@@ -24,11 +24,15 @@ class Config:
     SQLALCHEMY_TRACK_MODIFICATIONS = False
     SIMBRELLA_BASE_URL = os.getenv("SIMBRELLA_BASE_URL", "http://127.0.0.1:6337")
 
+
     JWT_SECRET_KEY = os.getenv("JWT_SECRET_KEY", "secret-key")
     JWT_ACCESS_TOKEN_EXPIRES = os.getenv("JWT_ACCESS_TOKEN_EXPIRES", timedelta(hours=1))
     JWT_REFRESH_TOKEN_EXPIRES = os.getenv(
         "JWT_REFRESH_TOKEN_EXPIRES", timedelta(days=30)
     )
 
+    KAFKA_BROKER = 'dev-events.simbrellang.net:9085'
+    KAFKA_PAYMENT_TOPIC = 'PROCESS_PAYMENT'
+
 
 settings = Config()

app/models/account.py

@@ -1,4 +1,5 @@
 from datetime import datetime, timezone
+from sqlalchemy.orm import relationship
 from app.extensions import db
 
 class Account(db.Model):
@@ -12,6 +13,13 @@ class Account(db.Model):
     created_at = db.Column(db.DateTime, default=datetime.now(timezone.utc))
     updated_at = db.Column(db.DateTime, default=datetime.now(timezone.utc), onupdate=datetime.now(timezone.utc))
 
+    customer = relationship(
+        "Customer",
+        primaryjoin="Customer.id == Account.customer_id",
+        foreign_keys=[customer_id],
+        back_populates="accounts",
+    )
+
     @classmethod
     def create_account(cls, id, customer_id, account_type, status='active'):
         account = cls(

app/models/customer.py

@@ -1,4 +1,5 @@
 from datetime import datetime, timezone
+from sqlalchemy.orm import relationship
 from app.extensions import db
 from app.models.account import Account
 
@@ -11,6 +12,13 @@ class Customer(db.Model):
     created_at = db.Column(db.DateTime, default=datetime.now(timezone.utc))
     updated_at = db.Column(db.DateTime, default=datetime.now(timezone.utc), onupdate=datetime.now(timezone.utc))
 
+    accounts = relationship(
+        "Account",
+        primaryjoin="Customer.id == Account.customer_id",
+        foreign_keys="Account.customer_id",
+        back_populates="customer",
+    )
+
     @classmethod
     def is_eligible(cls, customer_id):
         customer = cls.query.filter_by(id=customer_id).first()

app/swagger/digifi_swagger.json

@@ -19,6 +19,9 @@
     },
     {
       "url": "http://api.dev.simbrellang.net:4500"
+    },
+        {
+      "url": "https://api.dev.simbrellang.net"
     }
   ],
   "tags": [
@@ -96,6 +99,12 @@
     }
   ],
   "paths": {
+    "/Authorize": {
+      "$ref": "swagger/paths/Authorize.json"
+    },
+    "/AuthorizeRefresh": {
+      "$ref": "swagger/paths/AuthorizeRefresh.json"
+    },
     "/EligibilityCheck": {
       "$ref": "swagger/paths/EligibilityCheck.json"
     },
@@ -116,12 +125,6 @@
     },
     "/NotificationCallback": {
       "$ref": "swagger/paths/NotificationCallback.json"
-    },
-    "/Authorize": {
-      "$ref": "swagger/paths/Authorize.json"
-    },
-    "/AuthorizeRefresh": {
-      "$ref": "swagger/paths/AuthorizeRefresh.json"
     }
   },
   "components": {

app/swagger/paths/CustomerConsent.json

@@ -43,7 +43,7 @@
           }
         },
         "400": {
-          "description": "Invalid request parameters"
+          "description": "Invalid request"
         },
         "422": {
           "description": "Validation exception"

app/swagger/paths/EligibilityCheck.json

@@ -44,7 +44,7 @@
                 }
             },
             "400": {
-                "description": "Invalid request parameters"
+                "description": "Invalid request"
             },
             "422": {
                 "description": "Validation exception"

app/swagger/paths/LoanStatus.json

@@ -44,7 +44,7 @@
           }
         },
         "400": {
-          "description": "Invalid request parameters"
+          "description": "Invalid request"
         },
         "422": {
           "description": "Validation exception"

app/swagger/paths/NotificationCallback.json

@@ -44,7 +44,7 @@
           }
         },
        "400": {
-          "description": "Invalid request parameters"
+          "description": "Invalid request"
         },
         "422": {
           "description": "Validation exception"

app/swagger/paths/ProvideLoan.json

@@ -44,7 +44,7 @@
           }
         },
         "400": {
-          "description": "Invalid request parameters"
+          "description": "Invalid request"
         },
         "422": {
           "description": "Validation exception"

app/swagger/paths/Repayment.json

@@ -43,7 +43,7 @@
                 }
             },
             "400": {
-                "description": "Invalid request parameters"
+                "description": "Invalid request"
             },
             "422": {
                 "description": "Validation exception"

app/swagger/paths/SelectOffer.json

@@ -44,7 +44,7 @@
                 }
             },
             "400": {
-                "description": "Invalid request parameters"
+                "description": "Invalid request"
             },
             "422": {
                 "description": "Validation exception"

requirements.txt

@@ -30,3 +30,7 @@ requests
 # JWT
 flask-jwt-extended
 
+
+# Kafka 
+confluent-kafka==1.9.2
+