diff --git a/prototype/src/main/java/org/hso/ecommerce/api/SupplierService.java b/prototype/src/main/java/org/hso/ecommerce/api/SupplierService.java
new file mode 100644
index 0000000..35b87c0
--- /dev/null
+++ b/prototype/src/main/java/org/hso/ecommerce/api/SupplierService.java
@@ -0,0 +1,27 @@
+package org.hso.ecommerce.api;
+
+import org.hso.ecommerce.api.data.Order;
+import org.hso.ecommerce.api.data.OrderConfirmation;
+import org.hso.ecommerce.api.data.Supplier;
+import org.springframework.web.client.RestTemplate;
+
+public class SupplierService {
+
+    private final String url;
+
+    public SupplierService(String url) {
+        this.url = url;
+    }
+
+    public Supplier getSupplier() {
+        RestTemplate restTemplate = new RestTemplate();
+
+        return restTemplate.getForObject(url, Supplier.class);
+    }
+
+    public OrderConfirmation order(Order order) {
+        RestTemplate restTemplate = new RestTemplate();
+
+        return restTemplate.postForObject(url + "/order", order, OrderConfirmation.class);
+    }
+}
diff --git a/prototype/src/main/java/org/hso/ecommerce/api/data/Article.java b/prototype/src/main/java/org/hso/ecommerce/api/data/Article.java
new file mode 100644
index 0000000..ad2da1c
--- /dev/null
+++ b/prototype/src/main/java/org/hso/ecommerce/api/data/Article.java
@@ -0,0 +1,11 @@
+package org.hso.ecommerce.api.data;
+
+public class Article {
+    public String title;
+    public String manufacturer;
+    public String articleNumber;
+
+    public int vatPercent;
+    public int pricePerUnitNet;
+    public boolean shouldBeAdvertised;
+}
diff --git a/prototype/src/main/java/org/hso/ecommerce/api/data/Order.java b/prototype/src/main/java/org/hso/ecommerce/api/data/Order.java
new file mode 100644
index 0000000..679d7a7
--- /dev/null
+++ b/prototype/src/main/java/org/hso/ecommerce/api/data/Order.java
@@ -0,0 +1,9 @@
+package org.hso.ecommerce.api.data;
+
+public class Order {
+    public String manufacturer;
+    public String articleNumber;
+
+    public int quantity;
+    public int maxTotalPriceCentNet;
+}
diff --git a/prototype/src/main/java/org/hso/ecommerce/api/data/OrderConfirmation.java b/prototype/src/main/java/org/hso/ecommerce/api/data/OrderConfirmation.java
new file mode 100644
index 0000000..78c8285
--- /dev/null
+++ b/prototype/src/main/java/org/hso/ecommerce/api/data/OrderConfirmation.java
@@ -0,0 +1,12 @@
+package org.hso.ecommerce.api.data;
+
+public class OrderConfirmation {
+    public String manufacturer;
+    public String articleNumber;
+
+    public int quantity;
+
+    public int pricePerUnitNetCent;
+    public int discountNetCent;
+    public int totalPriceNetCharged;
+}
diff --git a/prototype/src/main/java/org/hso/ecommerce/api/data/Supplier.java b/prototype/src/main/java/org/hso/ecommerce/api/data/Supplier.java
new file mode 100644
index 0000000..4ed1f7b
--- /dev/null
+++ b/prototype/src/main/java/org/hso/ecommerce/api/data/Supplier.java
@@ -0,0 +1,11 @@
+package org.hso.ecommerce.api.data;
+
+import java.util.List;
+
+public class Supplier {
+
+    public String id;
+    public String name;
+    public SupplierDiscount discount;
+    public List<Article> articles;
+}
diff --git a/prototype/src/main/java/org/hso/ecommerce/api/data/SupplierDiscount.java b/prototype/src/main/java/org/hso/ecommerce/api/data/SupplierDiscount.java
new file mode 100644
index 0000000..9ccf250
--- /dev/null
+++ b/prototype/src/main/java/org/hso/ecommerce/api/data/SupplierDiscount.java
@@ -0,0 +1,6 @@
+package org.hso.ecommerce.api.data;
+
+public class SupplierDiscount {
+    public int minimumDailySalesVolumeNetCent;
+    public int percentDiscount;
+}