Add Promotion repository/controller/Service skeleton

src/main/java/com/nisum/ascend/promotions/controller/PromotionsController.java

+package com.nisum.ascend.promotions.controller;
+
+import com.nisum.ascend.promotions.repository.PromotionRepository;
+import com.nisum.ascend.promotions.service.PromotionService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api/promos")
+public class PromotionsController {
+
+    @Autowired
+    PromotionService promotionService;
+}

src/main/java/com/nisum/ascend/promotions/model/Promotion.java

+package com.nisum.ascend.promotions.model;
+
+import lombok.Getter;
+import lombok.Setter;
+import org.springframework.data.annotation.Id;
+import org.springframework.data.mongodb.core.index.Indexed;
+import org.springframework.data.mongodb.core.mapping.Document;
+
+@Getter
+@Setter
+@Document
+public class Promotion {
+    @Id
+    private String id;
+
+    @Indexed(unique=true)
+    private String promotionId;
+    private String productSku;
+    private float discountPercentage;
+    private int minimumQuantity;
+
+    public Promotion(String promotionId, String productSku, float discountPercentage, int minimumQuantity) {
+        this.promotionId = promotionId;
+        this.productSku = productSku;
+        this.discountPercentage = discountPercentage;
+        this.minimumQuantity = minimumQuantity;
+    }
+}

src/main/java/com/nisum/ascend/promotions/repository/PromotionRepository.java

+package com.nisum.ascend.promotions.repository;
+
+
+import com.nisum.ascend.promotions.model.Promotion;
+import org.springframework.data.mongodb.repository.ReactiveMongoRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface PromotionRepository extends ReactiveMongoRepository<Promotion, String> {
+}

src/main/java/com/nisum/ascend/promotions/service/PromotionService.java

+package com.nisum.ascend.promotions.service;
+
+import com.nisum.ascend.promotions.repository.PromotionRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+@Service
+public class PromotionService {
+
+    @Autowired
+    PromotionRepository promotionRepository;
+}