The PurchaseRule entity within the microservice architecture

Entity-Relationship-Model of <ProductService>

Entity Name: PurchaseRule

Data Schema: Shop

Master Service: ProductService

Microservices

3.1 CountryService

3.2 DiscountCampaignService

3.3 ProductService

3.4 ShopLicenseService

Entity Properties

Property Name	Datatype	Data Entity	Reference Entity
CreationDate	LONG	PurchaseRule
NotificationEmail	STRING	PurchaseRule
PrimaryKey	LONG	PurchaseRule
Product	LONG	PurchaseRule	Product
ServerReplicationVersion	LONG	PurchaseRule
ShopOwner	LONG	PurchaseRule
Threshold	INT	PurchaseRule
Warehouse	LONG	PurchaseRule	Warehouse

Service Interfaces

Relative mapping URL	Request Method	Method Name	Microservice	Involved Entities
/purchaserule/product/{id}	GET	findAllPurchaseRuleOfProduct(id)	ProductService	Product PurchaseRule
/purchaserule	GET	findAllPurchaseRule()	ProductService	PurchaseRule
/purchaserule/{id}	GET	findPurchaseRuleById(id)	ProductService	PurchaseRule
/purchaserule/{id}	PUT	updatePurchaseRuleById(purchaserule)	ProductService	PurchaseRule
/purchaserule/warehouse/{id}	GET	findAllPurchaseRuleOfWarehouse(id)	ProductService	Warehouse PurchaseRule
/purchaserule	POST	insertPurchaseRule(purchaserule)	ProductService	PurchaseRule
/purchaserule/{id}	DELETE	deletePurchaseRuleById(id)	ProductService	PurchaseRule

Distributed transaction of <PurchaseRule>

Pseudo code snippet

final PurchaseRule purchaserule = (PurchaseRule) this.callMicroservice(ServiceNames.PRODUCT_SERVICE + "/purchaserule/" + id, PurchaseRule.class);
if (purchaserule != null) {
    final Product product1 = (Product) this.callMicroservice(ServiceNames.PRODUCT_SERVICE + "/product/" + purchaserule.getProduct().getId(), Product.class);
    if (product1 != null) {
        final SalesTax salestax2 = (SalesTax) this.callMicroservice(ServiceNames.PRODUCT_SERVICE + "/salestax/" + product1.getSalesTax().getId(), SalesTax.class);
        if (salestax2 != null) {
            final Country country3 = (Country) this.callMicroservice(ServiceNames.COUNTRY_SERVICE + "/country/" + salestax2.getCountry().getId(), Country.class);
            if (country3 != null) {
            }
        }
        final ProductCategory productcategory4 = (ProductCategory) this.callMicroservice(ServiceNames.PRODUCT_SERVICE + "/productcategory/" + product1.getProductCategory().getId(), ProductCategory.class);
        if (productcategory4 != null) {
        }
        final Country countryoforigin5 = (Country) this.callMicroservice(ServiceNames.COUNTRY_SERVICE + "/country/" + product1.getCountryOfOrigin().getId(), Country.class);
        if (countryoforigin5 != null) {
        }
    }
    final Warehouse warehouse6 = (Warehouse) this.callMicroservice(ServiceNames.COUNTRY_SERVICE + "/warehouse/" + purchaserule.getWarehouse().getId(), Warehouse.class);
    if (warehouse6 != null) {
        final Country country7 = (Country) this.callMicroservice(ServiceNames.COUNTRY_SERVICE + "/country/" + warehouse6.getCountry().getId(), Country.class);
        if (country7 != null) {
        }
    }
}
return purchaserule;

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