ADD: IRR currency

ios/Widgets/Shared/WidgetAPI.swift

@@ -31,6 +31,8 @@ class WidgetAPI {
       urlString = "https://api.yadio.io/json/\(endPointKey)"
     case "BitcoinduLiban":
       urlString = "https://bitcoinduliban.org/api.php?key=lbpusd"
+    case "Exir":
+      urlString = "https://api.exir.io/v1/ticker?symbol=btc-irt"
     default:
       urlString = "https://api.coindesk.com/v1/bpi/currentprice/\(endPointKey).json"
     }
@@ -59,7 +61,12 @@ class WidgetAPI {
         latestRateDataStore = WidgetDataStore(rate: String(rateDouble), lastUpdate: lastUpdatedString, rateDouble: rateDouble)
       case "BitcoinduLiban":
         guard let rateString = json["BTC/LBP"] as? String else { break }
-        guard let rateDouble = Double(rateString) else {return}
+        guard let rateDouble = Double(rateString) else { break }
+        let lastUpdatedString = ISO8601DateFormatter().string(from: Date())
+        latestRateDataStore = WidgetDataStore(rate: rateString, lastUpdate: lastUpdatedString, rateDouble: rateDouble)
+      case "Exir":
+        guard let rateDouble = json["last"] as? Double else { break }
+        let rateString = String(rateDouble)
         let lastUpdatedString = ISO8601DateFormatter().string(from: Date())
         latestRateDataStore = WidgetDataStore(rate: rateString, lastUpdate: lastUpdatedString, rateDouble: rateDouble)
       default:

models/fiatUnit.js

@@ -4,6 +4,7 @@ export const FiatUnitSource = Object.freeze({
   CoinDesk: 'CoinDesk',
   Yadio: 'Yadio',
   BitcoinduLiban: 'BitcoinduLiban',
+  Exir: 'Exir',
 });
 
 const RateExtractors = Object.freeze({
@@ -57,6 +58,24 @@ const RateExtractors = Object.freeze({
     let rate = json?.[`BTC/${ticker}`];
     if (!rate) throw new Error(`Could not update rate for ${ticker}: data is wrong`);
 
+    rate = Number(rate);
+    if (!(rate >= 0)) throw new Error(`Could not update rate for ${ticker}: data is wrong`);
+    return rate;
+  },
+  Exir: async ticker => {
+    const api = new Frisbee({ baseURI: 'https://api.exir.io' });
+    const res = await api.get('/v1/ticker?symbol=btc-irt');
+    if (res.err) throw new Error(`Could not update rate for ${ticker}: ${res.err}`);
+
+    let json;
+    try {
+      json = typeof res.body === 'string' ? JSON.parse(res.body) : res.body;
+    } catch (e) {
+      throw new Error(`Could not update rate for ${ticker}: ${e.message}`);
+    }
+    let rate = json?.last;
+    if (!rate) throw new Error(`Could not update rate for ${ticker}: data is wrong`);
+
     rate = Number(rate);
     if (!(rate >= 0)) throw new Error(`Could not update rate for ${ticker}: data is wrong`);
     return rate;

models/fiatUnit.json

@@ -113,6 +113,12 @@
       "locale": "hi-HN",
       "source": "CoinDesk"
     },
+    "IRR": {
+      "endPointKey": "IRR",
+      "symbol": "﷼",
+      "locale": "fa-IR",
+      "source": "Exir"
+    },
     "JPY": {
       "endPointKey": "JPY",
       "symbol": "¥",

tests/integration/Currency.test.js

@@ -38,7 +38,13 @@ describe('currency', () => {
     // disabled, because it throws "Service Temporarily Unavailable" on circleci
     // await currency.setPrefferedCurrency(FiatUnit.LBP);
     // await currency.startUpdater();
-    // cur = JSON.parse(await AsyncStorage.getItem(AppStorage.EXCHANGE_RATES));
+    // cur = JSON.parse(await AsyncStorage.getItem(currency.EXCHANGE_RATES));
     // assert.ok(cur.BTC_LBP > 0);
+
+    // test Exir rate source
+    await currency.setPrefferedCurrency(FiatUnit.IRR);
+    await currency.startUpdater();
+    cur = JSON.parse(await AsyncStorage.getItem(currency.EXCHANGE_RATES));
+    assert.ok(cur.BTC_IRR > 0);
   });
 });