sort slice before return

backend/app/api/handlers/v1/controller.go

@@ -136,6 +136,9 @@ func (ctrl *V1Controller) HandleBase(ready ReadyFunc, build Build) errchain.Hand
 // @Router  /v1/currency [GET]
 func (ctrl *V1Controller) HandleCurrency() errchain.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) error {
+		// Set Cache for 10 Minutes
+		w.Header().Set("Cache-Control", "max-age=600")
+
 		return server.JSON(w, http.StatusOK, ctrl.svc.Currencies.Slice())
 	}
 }

backend/internal/core/currencies/currencies.go

@@ -7,6 +7,7 @@ import (
 	_ "embed"
 	"encoding/json"
 	"io"
+	"slices"
 	"sync"
 )
 
@@ -71,9 +72,17 @@ func NewCurrencyService(currencies []Currency) *CurrencyRegistry {
 func (cs *CurrencyRegistry) Slice() []Currency {
 	cs.mu.RLock()
 	defer cs.mu.RUnlock()
-	out := make([]Currency, 0, len(cs.registry))
+
+	keys := make([]string, 0, len(cs.registry))
 	for key := range cs.registry {
-		out = append(out, cs.registry[key])
+		keys = append(keys, key)
+	}
+
+	slices.Sort(keys)
+
+	out := make([]Currency, 0, len(cs.registry))
+	for i := range keys {
+		out = append(out, cs.registry[keys[i]])
 	}
 
 	return out

backend/internal/core/currencies/currencies.json

@@ -1 +1,188 @@
-[]
+[
+  {
+    "code": "AED",
+    "local": "United Arab Emirates",
+    "symbol": "د.إ",
+    "name": "United Arab Emirates Dirham"
+  },
+  {
+    "code": "AUD",
+    "local": "Australia",
+    "symbol": "A$",
+    "name": "Australian Dollar"
+  },
+  {
+    "code": "BGN",
+    "local": "bg-BG",
+    "symbol": "lv",
+    "name": "Bulgarian lev"
+  },
+  {
+    "code": "BRL",
+    "local": "Brazil",
+    "symbol": "R$",
+    "name": "Brazilian Real"
+  },
+  {
+    "code": "CAD",
+    "local": "Canada",
+    "symbol": "C$",
+    "name": "Canadian Dollar"
+  },
+  {
+    "code": "CHF",
+    "local": "Switzerland",
+    "symbol": "CHF",
+    "name": "Swiss Franc"
+  },
+  {
+    "code": "CZK",
+    "local": "cs-CZ",
+    "symbol": "Kč",
+    "name": "Czech Koruna"
+  },
+  {
+    "code": "DKK",
+    "local": "da-DK",
+    "symbol": "kr",
+    "name": "Danish Krone"
+  },
+  {
+    "code": "EUR",
+    "local": "Eurozone",
+    "symbol": "€",
+    "name": "Euro"
+  },
+  {
+    "code": "GBP",
+    "local": "United Kingdom",
+    "symbol": "£",
+    "name": "British Pound Sterling"
+  },
+  {
+    "code": "HKD",
+    "local": "Hong Kong",
+    "symbol": "HK$",
+    "name": "Hong Kong Dollar"
+  },
+  {
+    "code": "IDR",
+    "local": "Indonesia",
+    "symbol": "Rp",
+    "name": "Indonesian Rupiah"
+  },
+  {
+    "code": "INR",
+    "local": "India",
+    "symbol": "₹",
+    "name": "Indian Rupee"
+  },
+  {
+    "code": "JPY",
+    "local": "Japan",
+    "symbol": "¥",
+    "name": "Japanese Yen"
+  },
+  {
+    "code": "KRW",
+    "local": "South Korea",
+    "symbol": "₩",
+    "name": "South Korean Won"
+  },
+  {
+    "code": "MXN",
+    "local": "Mexico",
+    "symbol": "Mex$",
+    "name": "Mexican Peso"
+  },
+  {
+    "code": "NOK",
+    "local": "Norway",
+    "symbol": "kr",
+    "name": "Norwegian Krone"
+  },
+  {
+    "code": "NZD",
+    "local": "New Zealand",
+    "symbol": "NZ$",
+    "name": "New Zealand Dollar"
+  },
+  {
+    "code": "PLN",
+    "local": "Poland",
+    "symbol": "zł",
+    "name": "Polish Zloty"
+  },
+  {
+    "code": "RMB",
+    "local": "zh-CN",
+    "symbol": "¥",
+    "name": "Chinese Yuan"
+  },
+  {
+    "code": "RON",
+    "local": "ro-RO",
+    "symbol": "lei",
+    "name": "Romanian Leu"
+  },
+  {
+    "code": "RUB",
+    "local": "Russia",
+    "symbol": "₽",
+    "name": "Russian Ruble"
+  },
+  {
+    "code": "SAR",
+    "local": "Saudi Arabia",
+    "symbol": "﷼",
+    "name": "Saudi Riyal"
+  },
+  {
+    "code": "SEK",
+    "local": "Sweden",
+    "symbol": "kr",
+    "name": "Swedish Krona"
+  },
+  {
+    "code": "SGD",
+    "local": "Singapore",
+    "symbol": "S$",
+    "name": "Singapore Dollar"
+  },
+  {
+    "code": "THB",
+    "local": "Thailand",
+    "symbol": "฿",
+    "name": "Thai Baht"
+  },
+  {
+    "code": "TRY",
+    "local": "Turkey",
+    "symbol": "₺",
+    "name": "Turkish Lira"
+  },
+  {
+    "code": "USD",
+    "local": "United States",
+    "symbol": "$",
+    "name": "United States Dollar"
+  },
+  {
+    "code": "XAG",
+    "local": "Global",
+    "symbol": "XAG",
+    "name": "Silver Troy Ounce"
+  },
+  {
+    "code": "XAU",
+    "local": "Global",
+    "symbol": "XAU",
+    "name": "Gold Troy Ounce"
+  },
+  {
+    "code": "ZAR",
+    "local": "South Africa",
+    "symbol": "R",
+    "name": "South African Rand"
+  }
+]