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Getting sICX/bnUSD quote prices using Elixir's ICON SDK
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#!/usr/bin/env elixir | |
Mix.install([ | |
{:icon, "~> 0.1"} | |
]) | |
defmodule Quotes do | |
use Yggdrasil | |
alias Icon.Schema.Types.EventLog | |
@dex_contract "cxa0af3165c08318e988cb30993b3048335b94af6c" | |
@sicx_bnusd_id 2 | |
@signature "Swap(int,Address,Address,Address,Address,Address,int,int,int,int,int,int,int,int,int)" | |
@channel [ | |
adapter: :icon, | |
name: %{ | |
source: :event, | |
data: %{ | |
addr: @dex_contract, | |
event: @signature, | |
indexed: [@sicx_bnusd_id, nil] | |
} | |
} | |
] | |
def start_link, do: Yggdrasil.start_link(__MODULE__, [@channel]) | |
@impl Yggdrasil | |
def handle_event(_channel, %EventLog{} = swap_event, _state) do | |
[_, _, _, _, _, _, timestamp, _, _, _, _, price, _] = swap_event.data | |
datetime = | |
timestamp | |
|> DateTime.from_unix!(:microsecond) | |
|> DateTime.to_iso8601() | |
price = price / 1_000_000_000_000_000_000 | |
IO.puts("[#{datetime}] sICX/bnUSD price: #{price}") | |
{:ok, nil} | |
end | |
end | |
# Avoid ending too soon | |
{:ok, pid} = Quotes.start_link() | |
ref = Process.monitor(pid) | |
receive do | |
{:DOWN, ^ref, _, _, _} -> :ok | |
end |
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