Implementing list endpoints

services/inventory/design/design.go

@@ -16,8 +16,16 @@ var _ = API("inventory", func() {
 
 var _ = Service("inventory", func() {
 	Description("A GRPC back service that handles CRUD operations for the characters’ inventories")
-	// Method("listItems", func() {
-	// })
+	Method("listInventory", func() {
+		Payload(func() {
+			Field(1, "characterId", Int)
+		})
+		Result(ArrayOf(Int))
+
+		GRPC(func() {
+			Response(CodeOK)
+		})
+	})
 
 	Method("addItem", func() {
 		Payload(design.InventoryRecord)

services/inventory/inventory.go

@@ -56,6 +56,12 @@ func (s *inventorysrvc) RemoveItem(ctx context.Context, p *inventory.InventoryRe
 	return
 }
 
+func (s *inventorysrvc) ListInventory(ctx context.Context, payload *inventory.ListInventoryPayload) (res []int, err error) {
+	res = *s.inventories[*payload.CharacterID]
+
+	return
+}
+
 func (s *inventorysrvc) initCharacterInventory(characterId *int) (itemList *[]int) {
 	list := make([]int, 0)
 	itemList = &list