We need an API with the following actions:

• Given the SymbolISIN, return the historical stock info for that symbol

  Parameters: SymbolISIN, StartDate, End date

• CRUD actions for TriggerDefinition

There are some statistical definitions which can be calculated over history of stored data in database.

For Symbols data in the database, we need the following numbers to be calcualted and stored in some other table:

• Average Trade Price
• Last Price

You should create a base platform for running Jobs which can be scheduled beforehand, e.g:

• Calculate Average Trade Price after market close every day (5 PM every day)
• Calculate Last Price at 14:00 every day

You can search for "cron jobs" or "cron expressions" to know more. In fact a Cron Expression provides enough flexibility to support any scheduling scenario. The position of this worker relative to other services is displayed in the solution diagram.

deploy the consumer for Engine so you can read data from the producer in the queue directly

We need our StockInfoHandler service to store the incoming message in the Postgres database.

Configurations:

Postgresql Connection String
Service should only send the Ack to the RabbitMQ when the message is stored in the database.

By adding Triggers the endpoint user can see when and how a symbol reaches to the desired price.

Purposes:

• > create the trigger system
• > let Endpoint user decide which operator should be run

We need a service to consume messages from the RabbitMQ queue

Service features:

Configurations:

RabbitMQ Url
RabbitMQ Queue Name
Service should deserialize the JSON message and print the properties of the message in the console.

RabbitMQ .NET documentation: https://www.rabbitmq.com/tutorials/tutorial-one-python.html

Adds the possiblity to define Actions as part of Trigger definition.

The following actions should be supported for initial version:

• Send Order
• Send Message (different providers with the ability to easily add one later)
  • Slack
  • Email
  • SMS