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app.py
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app.py
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from socket import socket
import connexion
from consul import Check, Consul
from flask_migrate import Migrate
from flask_sqlalchemy import SQLAlchemy
from datetime import datetime
from schemas import *
import requests
from flask import request, abort
from functools import wraps
import jwt
consul_host = "consul"
consul_port = 8500
service_name = "inventory"
service_port = 5005
def register_to_consul():
consul = Consul(host="consul", port=consul_port)
agent = consul.agent
service = agent.service
check = Check.http(f"http://{service_name}:{service_port}/api/ui", interval="10s", timeout="5s", deregister="1s")
service.register(service_name, service_id=service_name, port=service_port, check=check)
def get_consul_service(service_id):
consul = Consul(host="consul", port=consul_port)
agent = consul.agent
service_list = agent.services()
service_info = service_list[service_id]
return service_info['Address'], service_info['Port']
register_to_consul()
JWT_SECRET = "MY SECRET"
def decode_token(token):
return jwt.decode(token, JWT_SECRET, algorithms=['HS256'])
def has_role(arg):
def has_role_inner(fn):
@wraps(fn)
def decorated_view(*args, **kwargs):
try:
headers = request.headers
if 'AUTHORIZATION' in headers:
token = headers['AUTHORIZATION'].split(' ')[1]
decoded_token = decode_token(token)
if 'admin' in decoded_token['roles']:
return fn(*args, **kwargs)
for role in arg:
if role in decoded_token['roles']:
return fn(*args, **kwargs)
abort(401)
return fn(*args, **kwargs)
except Exception as e:
abort(401)
return decorated_view
return has_role_inner
@has_role(["admin"])
def create_coupon(coupon_body):
coupon = Coupon(type=coupon_body['type'], quantity=coupon_body['quantity'])
db.session.add(coupon)
db.session.commit()
return {'id':coupon.id, 'quantity':coupon.quantity}
@has_role(["admin"])
def create_product_buy(product_buy_body):
product = db.session.query(ProductBuy).filter_by(name=product_buy_body['name']).first()
if product:
return {'error': '{} already exist'.format(id)}, 409
product = ProductBuy(name=product_buy_body['name'], price=product_buy_body['price'],
description=product_buy_body['description'], image=product_buy_body['image'],
category=product_buy_body['category'], brand=product_buy_body['brand'],
quantity=product_buy_body['quantity'])
db.session.add(product)
db.session.commit()
return {'id': product.id,
'name': product.name,
'price': product.price,
'description': product.description,
'image': product.image,
'category': product.category,
'brand': product.brand,
'quantity': product.quantity}
@has_role(["admin"])
def create_product_rent(product_rent_body):
product = db.session.query(ProductRent).filter_by(name=product_rent_body['name']).first()
if product:
return {'error': '{} already exist'.format(id)}, 409
product = ProductRent(name=product_rent_body['name'], price=product_rent_body['price'],
description=product_rent_body['description'], image=product_rent_body['image'],
category=product_rent_body['category'], brand=product_rent_body['brand'],
available=product_rent_body['available'])
db.session.add(product)
db.session.commit()
return {'id': product.id,
'name': product.name,
'price': product.price,
'description': product.description,
'image': product.image,
'category': product.category,
'brand': product.brand,
'available': product.available}
@has_role(["admin"])
def edit_product_buy(product_id, product_buy_body):
product = db.session.query(ProductBuy).filter_by(id=product_id).first()
if not product:
return {'error': '{} not found'.format(product_id)}, 404
product.name = product_buy_body['name']
product.price = product_buy_body['price']
product.description = product_buy_body['description']
product.image = product_buy_body['image']
product.category = product_buy_body['category']
product.brand = product_buy_body['brand']
product.quantity = product_buy_body['quantity']
db.session.commit()
return {'id': product.id,
'name': product.name,
'price': product.price,
'description': product.description,
'image': product.image,
'category': product.category,
'brand': product.brand,
'quantity': product.quantity}
@has_role(["admin"])
def edit_product_rent(product_id, product_rent_body):
product = db.session.query(ProductRent).filter_by(id=product_id).first()
if not product:
return {'error': '{} not found'.format(product_id)}, 404
product.name = product_rent_body['name']
product.price = product_rent_body['price']
product.description = product_rent_body['description']
product.image = product_rent_body['image']
product.category = product_rent_body['category']
product.brand = product_rent_body['brand']
product.available = product_rent_body['available']
db.session.commit()
return {'id': product.id,
'name': product.name,
'price': product.price,
'description': product.description,
'image': product.image,
'category': product.category,
'brand': product.brand,
'available': product.available}
@has_role(["admin"])
def delete_product_buy(product_id):
product = db.session.query(ProductBuy).filter_by(id=product_id).first()
if not product:
return {'error': '{} not found'.format(product_id)}, 404
db.session.delete(product)
db.session.commit()
return {'id': product.id,
'name': product.name,
'price': product.price,
'description': product.description,
'image': product.image,
'category': product.category,
'brand': product.brand,
'quantity': product.quantity}
@has_role(["admin"])
def delete_product_rent(product_id):
product = db.session.query(ProductRent).filter_by(id=product_id).first()
if not product:
return {'error': '{} not found'.format(product_id)}, 404
db.session.delete(product)
db.session.commit()
return {'id': product.id,
'name': product.name,
'price': product.price,
'description': product.description,
'image': product.image,
'category': product.category,
'brand': product.brand,
'available': product.available}
@has_role(["admin"])
def set_product_buy_discount(product_id, discount_percentage, valid_until):
product = db.session.query(ProductBuy).filter_by(id=product_id).first()
if not product:
return {'error': '{} not found'.format(product_id)}, 404
product.discountValid = datetime.strptime(valid_until, "%d-%m-%Y").date()
product.discountPercentage = discount_percentage
db.session.commit()
return {'id': product.id, 'name': product.name,
'discount_percentage': product.discountPercentage,
'discount_valid_until': product.discountValid}
@has_role(["admin"])
def set_product_rent_discount(product_id, discount_percentage, valid_until):
product = db.session.query(ProductRent).filter_by(id=product_id).first()
if not product:
return {'error': '{} not found'.format(product_id)}, 404
product.discountValid = datetime.strptime(valid_until, "%d-%m-%Y").date()
product.discountPercentage = discount_percentage
db.session.commit()
return {'id': product.id, 'name': product.name,
'discount_percentage': product.discountPercentage,
'discount_valid_until': product.discountValid}
@has_role(["admin", "user"])
def get_product_buy(product_id):
product = db.session.query(ProductBuy).filter_by(id=product_id).first()
if not product:
return {'error': '{} not found'.format(product_id)}, 404
return {'id': product.id,
'name': product.name,
'price': product.price,
'description': product.description,
'image': product.image,
'category': product.category,
'brand': product.brand,
'quantity': product.quantity}
@has_role(["admin", "user"])
def get_product_rent(product_id):
product = db.session.query(ProductRent).filter_by(id=product_id).first()
if not product:
return {'error': '{} not found'.format(product_id)}, 404
return {'id': product.id,
'name': product.name,
'price': product.price,
'description': product.description,
'image': product.image,
'category': product.category,
'brand': product.brand,
'available': product.available}
@has_role(["admin", "user"])
def get_all_products_buy():
products = db.session.query(ProductBuy).all()
itemsList = []
for product in products:
itemsList.append({'id': product.id,
'name': product.name,
'price': product.price,
'description': product.description,
'image': product.image,
'category': product.category,
'brand': product.brand,
'quantity': product.quantity})
return itemsList
@has_role(["admin", "user"])
def get_all_products_rent():
products = db.session.query(ProductRent).all()
itemsList = []
for product in products:
itemsList.append({'id': product.id,
'name': product.name,
'price': product.price,
'description': product.description,
'image': product.image,
'category': product.category,
'brand': product.brand,
'available': product.available})
return itemsList
@has_role(["admin", "user"])
def search_product_buy(search_param):
product = db.session.query(ProductBuy).filter_by(name=search_param).first()
if not product:
return {'error': '{} not found'.format(search_param)}, 404
return {'id': product.id,
'name': product.name,
'price': product.price,
'description': product.description,
'image': product.image,
'category': product.category,
'brand': product.brand,
'quantity': product.quantity}
@has_role(["admin", "user"])
def search_product_rent(search_param):
product = db.session.query(ProductRent).filter_by(name=search_param).first()
if not product:
return {'error': '{} not found'.format(search_param)}, 404
return {'id': product.id,
'name': product.name,
'price': product.price,
'description': product.description,
'image': product.image,
'category': product.category,
'brand': product.brand,
'available': product.available}
@has_role(["admin", "user"])
def buy_coupon(coupon_id):
coupon = db.session.query(Coupon).filter_by(id=coupon_id).first()
if not coupon:
return {'error': '{ not found'.format(coupon_id)}, 404
coupon.quantity = coupon.quantity - 1
db.session.commit()
return {'id': coupon.id}
@has_role(["admin", "user"])
def reserve_product_buy(reserve_product_buy_body):
product = db.session.query(ProductBuy).filter_by(id=reserve_product_buy_body['product_id']).first()
if not product:
return {'error': '{} not found'.format(reserve_product_buy_body['product_id'])}, 404
if product.quantity - reserve_product_buy_body['quantity'] < 0:
return {'error': '{} > 0 quantity'.format(reserve_product_buy_body['product_id'])}, 500
product.quantity = product.quantity - reserve_product_buy_body['quantity']
reserved_product = ReservedProductBuy(product_id=reserve_product_buy_body['product_id'],
quantity=reserve_product_buy_body['quantity'],
shopping_cart_id=reserve_product_buy_body['shopping_cart_id'])
db.session.add(reserved_product)
db.session.commit()
return {'product_id': reserved_product.product_id, 'shopping_cart_id': reserved_product.shopping_cart_id}
@has_role(["admin", "user"])
def reserve_product_rent(reserve_product_rent_body):
product = db.session.query(ProductRent).filter_by(id=reserve_product_rent_body['product_id']).first()
if not product:
return {'error': '{} not found'.format(reserve_product_rent_body['product_id'])}, 404
if not product.available:
return {'error': '{} not available'.format(reserve_product_rent_body['product_id'])}, 500
product.available = False
reserved_product = ReservedProductRent(product_id=reserve_product_rent_body['product_id'],
user_id=reserve_product_rent_body['user_id'])
db.session.add(reserved_product)
db.session.commit()
return {'product_id': reserved_product.product_id, 'user_id': reserved_product.user_id}
@has_role(["admin", "user"])
def buy_product(shopping_cart_id):
reserved_products = db.session.query(ReservedProductBuy).filter_by(shopping_cart_id=shopping_cart_id).all()
items = []
for reserved_product in reserved_products:
db.session.delete(reserved_product)
db.session.commit()
items.append({'product_id': reserved_product.product_id, 'shopping_cart_id': reserved_product.shopping_cart_id})
return items
@has_role(["admin", "user"])
def rent_product(product_id, user_id):
reserved_product = db.session.query(ReservedProductRent).filter_by(user_id=user_id) \
.filter_by(product_id=product_id).first()
db.session.delete(reserved_product)
db.session.commit()
return {'product_id': reserved_product.product_id, 'user_id': reserved_product.user_id}
@has_role(["admin", "user"])
def get_price_for_product_buy(product_id):
product = db.session.query(ProductBuy).filter_by(id=product_id).first()
if not product:
return {'error': '{} not found'.format(product_id)}, 404
if product.discountValid:
if product.discountValid > datetime.now().date():
return {'product_name': product.name,
'product_price': product.price - (product.price / 100 * product.discountPercentage)}
return {'product_name': product.name, 'product_price': product.price}
@has_role(["admin","user"])
def get_price_for_product_rent(product_id):
product = db.session.query(ProductRent).filter_by(id=product_id).first()
if not product:
return {'error': '{} not found'.format(product_id)}, 404
if product.discountValid:
if product.discountValid > datetime.now().date():
return {'product_name': product.name,
'product_price': product.price - (product.price / 100 * product.discountPercentage)}
return {'product_name': product.name, 'product_price': product.price}
@has_role(["admin","user"])
def get_all_product_valid_discounts():
products_buy = db.session.query(ProductBuy).all()
products_rent = db.session.query(ProductRent).all()
return_list = []
for product in products_buy:
if product.discountValid is not None:
return_list.append({'product_id': product.id, 'product_type': 'buy',
'discount_valid_until': product.discountValid,
'discount_percentage': product.discountPercentage})
for product in products_rent:
if product.discountValid is not None:
return_list.append({'product_id': product.id, 'product_type': 'rent',
'discount_valid_until': product.discountValid,
'discount_percentage': product.discountPercentage})
return return_list
# configuration
connexion_app = connexion.App(__name__, specification_dir="./")
app = connexion_app.app
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///inventory.db'
db = SQLAlchemy(app)
migrate = Migrate(app, db)
connexion_app.add_api("api.yml")
# dummy reference for migrations on ly
from models.models import *
if __name__ == "__main__":
connexion_app.run(host='0.0.0.0', port=5000, debug=True)