initial commit for #1067

lib/cli/commands/listcurrencies.ts

@@ -0,0 +1,46 @@
+import { callback, loadXudClient } from '../command';
+import { Arguments } from 'yargs';
+import colors from 'colors/safe';
+import Table, { HorizontalTable } from 'cli-table3';
+import { ListCurrenciesRequest, ListCurrenciesResponse } from '../../proto/xudrpc_pb';
+
+const HEADERS = [
+  colors.blue('Ticker'),
+  colors.blue('Digits'),
+  colors.blue('Global Identifier'),
+];
+
+const formatCurrencies = (currencies: ListCurrenciesResponse.AsObject) => {
+  const formatted: any[] = [];
+  currencies.currenciesList.forEach((currency) => {
+    const element = [];
+    element.push(currency.tickerSymbol, currency.digits, currency.globalIdentifier);
+    formatted.push(element);
+  });
+  return formatted;
+};
+
+const createTable = () => {
+  const table = new Table({
+    head: HEADERS,
+  }) as HorizontalTable;
+  return table;
+};
+
+const displayTable = (response: ListCurrenciesResponse.AsObject) => {
+  const table = createTable();
+
+  formatCurrencies(response).forEach((currency) => {
+    table.push(currency);
+  });
+  console.log(colors.underline(colors.bold('\nCurrencies:')));
+  console.log(table.toString());
+};
+
+export const command = 'listcurrencies';
+
+export const describe = 'list available currencies';
+
+export const handler = (argv: Arguments) => {
+  loadXudClient(argv).listCurrencies(new ListCurrenciesRequest(), callback(argv, displayTable));
+};

lib/grpc/GrpcService.ts

@@ -471,9 +471,16 @@ class GrpcService {
    */
   public listCurrencies: grpc.handleUnaryCall<xudrpc.ListCurrenciesRequest, xudrpc.ListCurrenciesResponse> = (_, callback) => {
     try {
-      const listCurrenciesResponse = this.service.listCurrencies();
+      const currencies = this.service.listCurrencies();
       const response = new xudrpc.ListCurrenciesResponse();
-      response.setCurrenciesList(listCurrenciesResponse);
+
+      currencies.forEach((currency) => {
+        const resultCurrency = new xudrpc.Currency();
+        resultCurrency.setDigits(currency.decimalPlaces);
+        resultCurrency.setTickerSymbol(currency.id);
+        resultCurrency.setGlobalIdentifier('TODO');
+        response.getCurrenciesList().push(resultCurrency);
+      });
 
       callback(null, response);
     } catch (err) {

lib/orderbook/OrderBook.ts

@@ -89,7 +89,7 @@ class OrderBook extends EventEmitter {
   }
 
   public get currencies() {
-    return this.currencyInstances.keys();
+    return this.currencyInstances;
   }
 
   constructor({ logger, models, thresholds, pool, swaps, nosanityswaps, nobalancechecks, nomatching = false }: