Running the sample code

1. Start a first node:

   mvn compile exec:exec -DAPP_CONFIG=local1.conf
   

2. Try it with grpcurl:

   # add item to cart
   grpcurl -d '{"cartId":"cart1", "itemId":"socks", "quantity":3}' -plaintext 127.0.0.1:8101 shoppingcart.ShoppingCartService.AddItem