Welcome Krypto CoinPair Average Calculator

The Krypto.Binance and Krypto.CoinPair servers are started along with application.

Project Highlighted Module

Krypto.CoinPair

This module simulates a Persistent Server for subscribing the coinpair and storing the prices of coinpair using GenServer.

It will start as soon as our krypto app starts.

Development Technologies

At the moment of developing this project, I used the following versions of Elixir and Erlang.

iex> mix hex.info

Hex:    2.0.6
Elixir: 1.16.1
OTP:    26.2.2

Built with: Elixir 1.16.1 and OTP 24.3.4.16

Running Application

1) mix release krypto

mix deps.get
mix release krypto

I added the releases path to ./releases

So, we are provided with following commands.

Release created at releases

    # To start your system
    releases/bin/krypto start

Once the release is running:

    # To connect to it remotely
    releases/bin/krypto remote

    # To stop it gracefully (you may also send SIGINT/SIGTERM)
    releases/bin/krypto stop

To list all commands:

    releases/bin/krypto

2) iex -S mix

Running Interactively

Project Challenges

Websockex Integration (Binance) Subscription Implementation.
CoinPair Server for subscribing and updating the coinpair prices.

Usage of Application

When the application starts, we have two modules available. Krypto.Binance and Krypto.CoinPair. The Krypto.Binance establish a websocket connection as soon as the application starts.

Subscribing a coinpair

iex> Krypto.CoinPair.subscribe "btcusdt"
:ok

iex> Krypto.CoinPair.subscribe "ethusdt"
:ok

Getting Average price for coinpair

iex> Krypto.CoinPair.get_average "btcusdt"
{:ok, 64019.6706875}


iex> Krypto.CoinPair.get_average "ethusdt"
{:ok, 3150.221481481482}

Debugging

iex> :sys.trace(Process.whereis(Krypto.Binance), true)

Overall Project Experience

I felt it is a well framed to test core concepts of Elixir as project made me to code in all the core concepts of Elixir like GenServers, Enumaration, message communications, websocket.

Thank You :)

Best Regards,
Ankanna

blackode/krypto