feat: add getAddressFrom

README.md

@@ -76,6 +76,14 @@ Get the corresponding currency for a given address.
 function getCurrencyFrom(address: string): Currency | undefined;
 ```
 
+### getAddressFrom
+
+Get the corresponding currency for a given address.
+
+```javascript
+function getAddressFrom(currency: Exclude<Currency, Currency.STX>): string;
+```
+
 ### isAlexSwapTransaction
 
 Check if a transaction is a swap transaction from Alex

src/alexSDK.ts

@@ -7,6 +7,7 @@ import { runSpot, TxToBroadCast } from './helpers/SwapHelper';
 import {
   fetchBalanceForAccount,
   findCurrencyByNativeAddress,
+  getCurrencyNativeAddress,
 } from './utils/currencyUtils';
 import { fetchLatestPrices } from './utils/currencyPrice';
 import { assignConfig, AssignConfigParams, configs } from './config';
@@ -72,6 +73,10 @@ export class AlexSDK {
     return findCurrencyByNativeAddress(address);
   }
 
+  getAddressFrom(currency: Exclude<Currency, Currency.STX>): string {
+    return getCurrencyNativeAddress(currency);
+  }
+
   getLatestPrices(): Promise<
     Partial<{
       [currency in Currency]: number;

src/utils/currencyUtils.ts

@@ -11,7 +11,7 @@ export function getCurrencyNativeScale(currency: Currency) {
 
 export function getCurrencyNativeAddress(currency: Currency) {
   if (currency === Currency.STX) {
-    throw new Error('STX is not a token');
+    throw new Error('STX does not have an address');
   }
   return configs.NATIVE_TOKEN_MAPPING[currency].assetIdentifier;
 }