Live Stock Price Feed System

Versions

• Erlang/OTP 27
• Elixir 1.17.3

Usage

My solution prioritized simplicity, so I chose to use IEX to enhance usability.

• Start the interactive Elixir:

$ iex -S mix

• Check the available stocks with the following function:

iex(1)> StockPriceStream.Interactive.get_available_stocks()

# Expected:
{:ok, ["STK1", "STK2", "STK3", "STK4", "STK5"]}

• Choose one stock and start to listening:

iex(2)> StockPriceStream.Interactive.start_listening("STK3")

# Expected:
[info] Subscribed for stock: STK3
[info] Started client subscribed for STK3, PID: #PID<0.223.0>
{:ok, #PID<0.223.0>}

• Stop listening:

iex(3)> StockPriceStream.Interactive.stop_listening("STK3")

Expected:
[info] Terminanting client #PID<0.223.0>
:ok