//Identical to above, except only returning a single SimpleCoin instead of a list.
public async Task <IActionResult> GetLivePriceAsync()
{
SimpleCoin newCoin = new SimpleCoin();
using (var client = new HttpClient())
{
try
{
client.BaseAddress = new Uri("https://min-api.cryptocompare.com");
var response = await client.GetAsync($"/data/price?fsym=BTC&tsyms=USD");
response.EnsureSuccessStatusCode();
var stringResult = await response.Content.ReadAsStringAsync();
var rawData = PriceOnly.FromJson(stringResult);
newCoin.Currency = "USD";
newCoin.USD = rawData.Usd;
}
catch (HttpRequestException httpRequestException)
{
return(BadRequest($"Error getting requested price history from CryptoCompare: {httpRequestException.Message}"));
}
return(Json(newCoin));
}
}
public void SetGetCurrency()
{
// Arrange
SimpleCoin simpleCoin = this.CreateSimpleCoin();
string currency = "EUR";
// Act
simpleCoin.Currency = currency;
// Assert
Assert.Equal(currency, simpleCoin.Currency);
}
public void SetGetPrice()
{
// Arrange
SimpleCoin simpleCoin = this.CreateSimpleCoin();
double price = 6.54;
// Act
simpleCoin.USD = price;
// Assert
Assert.Equal(simpleCoin.USD, price);
}
//Retreives an hourly price history from CryptoCompare, passes simplified data to the front-end for charting
public async Task <IActionResult> GetHistoryChartJSONAsync()
{
//List to hold the simplified coin prices
List <SimpleCoin> priceList = new List <SimpleCoin>();
using (var client = new HttpClient())
{
try
{
client.BaseAddress = new Uri("https://min-api.cryptocompare.com");
//Api Query
var response = await client.GetAsync($"/data/histohour?fsym=BTC&tsym=USD&limit=19&aggregate=3&e=CCCAGG");
response.EnsureSuccessStatusCode();
var stringResult = await response.Content.ReadAsStringAsync();
//Deserialize the JSON response
var rawData = ApiResponse.FromJson(stringResult);
if (rawData.Data != null)
{
//Populate "priceList" with SimpleCoins
foreach (var o in rawData.Data)
{
//Use response data to instantiate a SimpleCoin
SimpleCoin coin = new SimpleCoin
{
Currency = "USD",
USD = o.Close
};
//Add new SimpleCoin to "priceList"
priceList.Add(coin);
}
}
}
catch (HttpRequestException httpRequestException)
{
return(BadRequest($"Error getting requested price history from CryptoCompare: {httpRequestException.Message}"));
}
//Return "priceList" as JSON to front-end AJAX call
return(Json(priceList));
}
}
