added bearer token authentication

app/__init__.py

@@ -1,17 +1,21 @@
-from flask import Flask
+from flask import Flask, jsonify
 import os
 from flask_swagger_ui import get_swaggerui_blueprint
 from flask_cors import CORS
 from app.config import Config
-from app.api.routes import api
+from app.api.routes import api, auth_bp
 from app.errors import register_error_handlers
+from flask_jwt_extended import JWTManager
 
 def create_app():
     """ Factory function to create a Flask app instance """
     app = Flask(__name__)
+    
+   
 
     # Load configuration
     app.config.from_object(Config)
+    jwt = JWTManager(app)
 
     CORS(app)
 
@@ -21,11 +25,36 @@ def create_app():
 
     # Register blueprints with /api prefix for the main API routes
     app.register_blueprint(api, url_prefix='/api')
+    # Register blueprints with /auth prefix for the authentication routes
+    app.register_blueprint(auth_bp, url_prefix='/api/Auth')
 
     swagger_ui_blueprint = get_swaggerui_blueprint(SWAGGER_URL, API_URL)
     app.register_blueprint(swagger_ui_blueprint, url_prefix=SWAGGER_URL)
+    
+    def jwt_error(message, code=401):
+        return jsonify({
+            "status": "error",
+            "message": message
+        }), code
 
 
+    @jwt.unauthorized_loader
+    def unauthorized_response(callback):
+        return jwt_error("Unauthorized access")
+
+    @jwt.expired_token_loader
+    def expired_token_callback(jwt_header, jwt_payload):
+        return jwt_error("Expired token")
+
+    @jwt.invalid_token_loader
+    def invalid_token_callback(error):
+        return jwt_error("Invalid authentication token.", 422)
+
+    @jwt.revoked_token_loader
+    def revoked_token_callback(jwt_header, jwt_payload):
+        return jwt_error("This token has been revoked. Please log in again.")
+
+   
     # Error Handlers
     register_error_handlers(app)