private async Task GetDexEosContractsCostAsync(TokenCostServiceSettings settings, decimal eosToUsd, List <TokenCost> tokenCosts, CancellationToken token)
{
var client = new HttpClient();
var message = await client.GetAsync($"{settings.DexEosApi}/token", token)
.ConfigureAwait(false);
message.EnsureSuccessStatusCode();
var json = await message.Content.ReadAsStringAsync()
.ConfigureAwait(false);
var typedResult = JsonConvert.DeserializeObject <DexEosToken.RootObject[]>(json);
foreach (var item in typedResult)
{
var tokenCost = new TokenCost
{
Contract = BaseName.StringToName(item.code),
TokenName = item.symbol.ToUpper(),
EosRate = item.summary.last_price,
UsdRate = item.summary.last_price * eosToUsd
};
if (tokenCosts.Any(t => t.Contract == tokenCost.Contract && t.TokenName.Equals(tokenCost.TokenName)))
{
continue;
}
tokenCosts.Add(tokenCost);
}
}
private async Task <decimal> GetEosUsdAsync(TokenCostServiceSettings settings, CancellationToken token)
{
var currency = "EOS";
var client = new HttpClient();
client.DefaultRequestHeaders.Add("X-CMC_PRO_API_KEY", settings.CoinmarketcapApiKey);
var message = await client.GetAsync($"{settings.CoinmarketcapApi}/cryptocurrency/quotes/latest?symbol={currency}", token)
.ConfigureAwait(false);
message.EnsureSuccessStatusCode();
var json = await message.Content.ReadAsStringAsync()
.ConfigureAwait(false);
var root = JsonConvert.DeserializeObject <Coinmarketcap.RootObject>(json);
var price = root.data.EOS.quote.USD.price;
return(price);
}
protected override async Task DoSomethingAsync(NpgsqlConnection connection, CancellationToken token)
{
var settings = new TokenCostServiceSettings();
Configuration.GetSection("TokenCostServiceSettings").Bind(settings);
var eosToUsd = await GetEosUsdAsync(settings, token);
var tokenCost = new List <TokenCost>
{
new TokenCost
{
Contract = 6138663591592764928, //eosio.token
TokenName = "EOS",
EosRate = 1,
UsdRate = eosToUsd
}
};
await GetNewDexContractsCostAsync(settings, eosToUsd, tokenCost, token);
await GetDexEosContractsCostAsync(settings, eosToUsd, tokenCost, token);
connection.Open();
NpgsqlTransaction transaction = null;
try
{
transaction = connection.BeginTransaction();
await connection.UpdateTokenCost(tokenCost, token);
transaction.CommitAndDispose();
}
catch (Exception)
{
transaction.RollbackAndDispose();
throw;
}
}
private async Task GetNewDexContractsCostAsync(TokenCostServiceSettings settings, decimal eosToUsd, List <TokenCost> tokenCosts, CancellationToken token)
{
var client = new HttpClient();
var message = await client.GetAsync($"{settings.NewDexApi}/tickers", token)
.ConfigureAwait(false);
message.EnsureSuccessStatusCode();
var json = await message.Content.ReadAsStringAsync()
.ConfigureAwait(false);
var typedResult = JsonConvert.DeserializeObject <NewDexToken.RootObject>(json);
foreach (var item in typedResult.data)
{
if (!item.symbol.EndsWith("-eos"))
{
continue;
}
var tokenCost = new TokenCost
{
Contract = BaseName.StringToName(item.contract),
TokenName = item.currency.ToUpper(),
EosRate = item.last,
UsdRate = item.last * eosToUsd
};
if (tokenCosts.Any(t => t.Contract == tokenCost.Contract && t.TokenName.Equals(tokenCost.TokenName)))
{
continue;
}
tokenCosts.Add(tokenCost);
}
}
