antoniehuang/akka-guide-shopping-cart-service

Running the sample code

1. Start a local PostgreSQL server on default port 5432. The included docker-compose.yml starts everything required for running locally.

   docker compose up --wait
   
   # creates the tables needed for Akka Persistence
   # as well as the offset store table for Akka Projection
   docker exec -i postgres-db psql -U shopping-cart -t < ddl-scripts/create_tables.sql

2. Start a first node:

   sbt -Dconfig.resource=local1.conf run

3. (Optional) Start another node with different ports:

   sbt -Dconfig.resource=local2.conf run

4. (Optional) More can be started:

   sbt -Dconfig.resource=local3.conf run

5. Check for service readiness

   curl http://localhost:9101/ready

6. Try it with grpcurl. Add at least a total quantity of 10 to the cart, smaller carts are excluded by the event filter.

   # add item to cart
   grpcurl -d '{"cartId":"cart1", "itemId":"socks", "quantity":3}' -plaintext 127.0.0.1:8101 shoppingcart.ShoppingCartService.AddItem
   
   # get cart
   grpcurl -d '{"cartId":"cart1"}' -plaintext 127.0.0.1:8101 shoppingcart.ShoppingCartService.GetCart
   
   # update quantity of item
   grpcurl -d '{"cartId":"cart1", "itemId":"socks", "quantity":5}' -plaintext 127.0.0.1:8101 shoppingcart.ShoppingCartService.AddItem
   
   # check out cart
   grpcurl -d '{"cartId":"cart1"}' -plaintext 127.0.0.1:8101 shoppingcart.ShoppingCartService.Checkout
   

   or same grpcurl commands to port 8102 to reach node 2.