configurable price update frequency

backend/mempool-config.sample.json

@@ -116,6 +116,7 @@
     "PASSWORD": ""
   },
   "PRICE_DATA_SERVER": {
+    "UPDATE_FREQUENCY": 300,
     "TOR_URL": "http://wizpriceje6q5tdrxkyiazsgu7irquiqjy2dptezqhrtu7l2qelqktid.onion/getAllMarketPrices",
     "CLEARNET_URL": "https://price.bisq.wiz.biz/getAllMarketPrices"
   },

backend/src/__fixtures__/mempool-config.template.json

@@ -93,6 +93,7 @@
     "PASSWORD": "__SOCKS5PROXY_PASSWORD__"
   },
   "PRICE_DATA_SERVER": {
+    "UPDATE_FREQUENCY": "__PRICE_DATA_SERVER_UPDATE_FREQUENCY",
     "TOR_URL": "__PRICE_DATA_SERVER_TOR_URL__",
     "CLEARNET_URL": "__PRICE_DATA_SERVER_CLEARNET_URL__"
   },

backend/src/__tests__/config.test.ts

@@ -102,6 +102,7 @@ describe('Mempool Backend Config', () => {
       });
 
       expect(config.PRICE_DATA_SERVER).toStrictEqual({
+        UPDATE_FREQUENCY: 3600,
         TOR_URL: 'http://wizpriceje6q5tdrxkyiazsgu7irquiqjy2dptezqhrtu7l2qelqktid.onion/getAllMarketPrices',
         CLEARNET_URL: 'https://price.bisq.wiz.biz/getAllMarketPrices'
       });

backend/src/config.ts

@@ -116,6 +116,7 @@ interface IConfig {
     PASSWORD: string;
   };
   PRICE_DATA_SERVER: {
+    UPDATE_FREQUENCY: number;
     TOR_URL: string;
     CLEARNET_URL: string;
   };
@@ -259,6 +260,7 @@ const defaults: IConfig = {
     'PASSWORD': ''
   },
   'PRICE_DATA_SERVER': {
+    'UPDATE_FREQUENCY': 3600,
     'TOR_URL': 'http://wizpriceje6q5tdrxkyiazsgu7irquiqjy2dptezqhrtu7l2qelqktid.onion/getAllMarketPrices',
     'CLEARNET_URL': 'https://price.bisq.wiz.biz/getAllMarketPrices'
   },

backend/src/tasks/price-updater.ts

@@ -108,8 +108,8 @@ class PriceUpdater {
       this.lastRun = await PricesRepository.$getLatestPriceTime();
     }
 
-    if ((Math.round(new Date().getTime() / 1000) - this.lastRun) < 3600) {
-      // Refresh only once every hour
+    if ((Math.round(new Date().getTime() / 1000) - this.lastRun) < config.PRICE_DATA_SERVER.UPDATE_FREQUENCY) {
+      // Refresh every UPDATE_FREQUENCY seconds at most
       return;
     }