public async Task <IActionResult> Purchase([FromBody] OrderModel order)
{
var coins = order.Coins.Select(x => new KeyValuePair <decimal, int>(x.Value, x.Count)).ToDictionary(x => x.Key, x => x.Value);
var returnings = new Dictionary <decimal, int>();
var succeed = await service.PurchaseAsync(order.ProductId, coins, returnings);
return(Ok(new
{
Message = succeed ? "Thank you" : "Insufficient amount",
Coins = returnings.Select(x => new CoinModel()
{
Value = x.Key, Count = x.Value
})
}));
}