EvoDex

Peripheral EOSIO smart contracts for interacting with Evolution Dex

Dependencies

• sx.uniswap

Quickstart

#include <sx.evodex/evodex.hpp>
#include <sx.uniswap/uniswap.hpp>

// user input
const asset quantity = asset{10000, symbol{"EOS", 4}};
const uint64_t pair_id = "EOSUSDT"; // EOS/USDT pair

// get evodex info
const auto [ reserve_in, reserve_out ] = evodex::get_reserves( pair_id, quantity.symbol );
const uint8_t fee = evodex::get_fee();

// calculate out price
const asset out = uniswap::get_amount_out( quantity, reserves_in, reserves_out, fee );
// => "2.6500 USDT"

Table of Content

• STATIC get_reserves
• STATIC get_fee

STATIC get_reserves

Get reserves for a pair

params

• {string} pair_id - pair id
• {symbol} sort - sort by symbol (reserve0 will be first item in pair)

returns

• {pair<asset, asset>} - pair of reserve assets

example

const uint64_t pair_id = "EOSUSDT";
const symbol sort = symbol{"EOS", 4};

const auto [reserve0, reserve1] = evodex::get_reserves( pair_id, sort );
// reserve0 => "4638.5353 EOS"
// reserve1 => "13614.8381 USDT"

STATIC get_fee

Get total fee

returns

• {uint8_t} - total fee (trade + protocol)

example

const uint8_t fee = evodex::get_fee();
// => 30