diff --git a/package.json b/package.json
index ac9fbfc444aede77cc492ea483ceacebb6791d12..2add968adbad97c0cae41748a998b34ebde22c61 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "version": "0.0.0",
   "scripts": {
     "ng": "ng",
-    "generate-api": "rm -rf openapi-generator-cli.jar && curl --insecure https://repo.maven.apache.org/maven2/org/openapitools/openapi-generator-cli/6.6.0/openapi-generator-cli-6.6.0.jar -o openapi-generator-cli.jar && java -jar openapi-generator-cli.jar generate -i ../backend/src/main/java/com/shop/sphere/api/shop-sphere.yaml -g typescript-angular -o ./src/api --additional-properties=stringEnums=true,ngVersion=16.2.11",
+    "generate-api": "rm -rf openapi-generator-cli.jar && curl --insecure https://repo.maven.apache.org/maven2/org/openapitools/openapi-generator-cli/6.6.0/openapi-generator-cli-6.6.0.jar -o openapi-generator-cli.jar && java -jar openapi-generator-cli.jar generate -i ../backend/src/main/java/com/shop/sphere/api/shop-sphere.yaml -g typescript-angular -o ./src/api-client --additional-properties=stringEnums=true,ngVersion=16.2.11",
     "start": "npm run generate-api && ng serve --port ",
     "build": "npm run generate-api && ng build",
     "watch": "ng build --watch --configuration development",
diff --git a/src/app/services/admin.service.ts b/src/app/services/admin.service.ts
new file mode 100644
index 0000000000000000000000000000000000000000..5777ae6d15658f8ebf44dcc046e2ce38aa64a9fd
--- /dev/null
+++ b/src/app/services/admin.service.ts
@@ -0,0 +1,19 @@
+import { Injectable } from '@angular/core';
+import { Observable } from 'rxjs';
+import { AdminDTO, AdminsService } from 'src/api-client';
+
+@Injectable({
+  providedIn: 'root',
+})
+export class AdminService {
+  constructor(private adminsApiService: AdminsService) {}
+
+  /**
+   * Find admin by id
+   * @param id the id of the admin to find
+   * @returns an observable of admin
+   */
+  public getAdmin(id: number): Observable<AdminDTO> {
+    return this.adminsApiService.getAdmin(id);
+  }
+}
diff --git a/src/app/services/buyer.service.ts b/src/app/services/buyer.service.ts
new file mode 100644
index 0000000000000000000000000000000000000000..db88a7326d57157ed2bccf7d34fa622ca8750138
--- /dev/null
+++ b/src/app/services/buyer.service.ts
@@ -0,0 +1,44 @@
+import { Injectable } from '@angular/core';
+import { Observable } from 'rxjs';
+import { BuyerDTO, BuyersService, IdBuyer } from 'src/api-client';
+
+@Injectable({
+  providedIn: 'root',
+})
+export class BuyerService {
+  constructor(private buyersApiService: BuyersService) {}
+
+  /**
+   * Create a new buyer in the database
+   * @param buyer to save in the databse
+   * @returns an obserable containing the id of the buyer created
+   */
+  public createBuyer(buyer: BuyerDTO): Observable<IdBuyer> {
+    return this.buyersApiService.createBuyer(buyer);
+  }
+
+  /**
+   * Find a buyer by id
+   * @param id the id of the buyer
+   * @returns an observable of buyer
+   */
+  public getBuyer(id: number): Observable<BuyerDTO> {
+    return this.buyersApiService.getBuyer(id);
+  }
+
+  /**
+   * Retrieve all buyers from the database
+   * @returns an observable of buyers
+   */
+  public getBuyers(): Observable<BuyerDTO[]> {
+    return this.buyersApiService.getBuyers();
+  }
+
+  /**
+   * Update a buyer in the database
+   * @param buyer the buyer to update
+   */
+  public updateBuyer(buyer: BuyerDTO): Observable<any> {
+    return this.buyersApiService.updateBuyer(buyer);
+  }
+}
diff --git a/src/app/services/order.service.ts b/src/app/services/order.service.ts
new file mode 100644
index 0000000000000000000000000000000000000000..69d15de9f9cdcea6e239ca224de34143401b8c9b
--- /dev/null
+++ b/src/app/services/order.service.ts
@@ -0,0 +1,52 @@
+import { Injectable } from '@angular/core';
+import { Observable } from 'rxjs';
+import { IdOrder, OrderDTO, OrdersService } from 'src/api-client';
+
+@Injectable({
+  providedIn: 'root',
+})
+export class OrderService {
+  constructor(private ordersApiService: OrdersService) {}
+
+  /**
+   * Create a new order in the database
+   * @param order to save in the databse
+   * @returns an obserable containing the id of the order created
+   */
+  public createOrder(order: OrderDTO): Observable<IdOrder> {
+    return this.ordersApiService.createOrder(order);
+  }
+
+  /**
+   * Delete an order in the database
+   * @param id of the order to delete
+   */
+  public deleteOrder(id: number): Observable<any> {
+    return this.ordersApiService.deleteOrder(id);
+  }
+
+  /**
+   * Find an order by id
+   * @param id the id of the order to find
+   * @returns an observable of order
+   */
+  public getOrder(id: number): Observable<OrderDTO> {
+    return this.ordersApiService.getOrder(id);
+  }
+
+  /**
+   * Retrieve all orders from the database
+   * @returns an observable of orders
+   */
+  public getOrders(): Observable<OrderDTO[]> {
+    return this.ordersApiService.getOrders();
+  }
+
+  /**
+   * Update an order in the database
+   * @param order the order to update
+   */
+  public updateOrder(order: OrderDTO): Observable<any> {
+    return this.ordersApiService.updateOrder(order);
+  }
+}
diff --git a/src/app/services/product.service.ts b/src/app/services/product.service.ts
new file mode 100644
index 0000000000000000000000000000000000000000..75a17f58cd60891154e2e38db012146a317f5d95
--- /dev/null
+++ b/src/app/services/product.service.ts
@@ -0,0 +1,35 @@
+import { Injectable } from '@angular/core';
+import { Observable } from 'rxjs';
+import { ProductDTO, ProductsService } from 'src/api-client';
+
+@Injectable({
+  providedIn: 'root',
+})
+export class ProductService {
+  constructor(private productsApiService: ProductsService) {}
+
+  /**
+   * Find a product by id
+   * @param id the id of the product to find
+   * @returns an observable of product
+   */
+  public getProduct(id: number): Observable<ProductDTO> {
+    return this.productsApiService.getProduct(id);
+  }
+
+  /**
+   * Retrieve all products from the database
+   * @returns an observable of products
+   */
+  public getProducts(): Observable<Array<ProductDTO>> {
+    return this.productsApiService.getProducts();
+  }
+
+  /**
+   * Update a product in the database
+   * @param product the product to update
+   */
+  public updateProduct(product: ProductDTO): void {
+    this.productsApiService.updateProduct(product);
+  }
+}