服务的角色

View Service Graph to visualize request flows.

Service	Language	Description
accountingservice	Go	Processes incoming orders and count the sum of all orders (mock/).
adservice	Java	Provides text ads based on given context words.
cartservice	DotNet	Stores the items in the user's shopping cart in Redis and retrieves it.
checkoutservice	Go	Retrieves user cart, prepares order and orchestrates the payment, shipping and the email notification.
currencyservice	C++	Converts one money amount to another currency. Uses real values fetched from European Central Bank. It's the highest QPS service.
emailservice	Ruby	Sends users an order confirmation email (mock/).
frauddetectionservice	Kotlin	Analyzes incoming orders and detects fraud attempts (mock/).
featureflagservice	Erlang/Elixir	CRUD feature flag service to demonstrate various scenarios like fault injection & how to emit telemetry from a feature flag reliant service.
frontend	JavaScript	Exposes an HTTP server to serve the website. Does not require signup/login and generates session IDs for all users automatically.
loadgenerator	Python/Locust	Continuously sends requests imitating realistic user shopping flows to the frontend.
paymentservice	JavaScript	Charges the given credit card info (mock/) with the given amount and returns a transaction ID.
productcatalogservice	Go	Provides the list of products from a JSON file and ability to search products and get individual products.
quoteservice	PHP	Calculates the shipping costs, based on the number of items to be shipped.
recommendationservice	Python	Recommends other products based on what's given in the cart.
shippingservice	Rust	Gives shipping cost estimates based on the shopping cart. Ships items to the given address (mock/).