fix: export logs error

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 ## Unreleased
 
 - Fixed sorting symbols open trades first by [@uhliksk](https://github.com/uhliksk) - [#564](https://github.com/chrisleekr/binance-trading-bot/pull/564)
-- Fixed the issue that cannot export huge logs - [#561](https://github.com/chrisleekr/binance-trading-bot/pull/561)
+- Fixed the issue that cannot export huge logs - [#561](https://github.com/chrisleekr/binance-trading-bot/pull/561), [#567](https://github.com/chrisleekr/binance-trading-bot/pull/567)
 
 Thanks [@uhliksk](https://github.com/uhliksk) for your great contributions. 💯 :heart:
 

app/__tests__/server-frontend.test.js

@@ -1,4 +1,5 @@
 /* eslint-disable global-require */
+const path = require('path');
 
 describe('server-frontend', () => {
   let mockExpressStatic;
@@ -36,6 +37,8 @@ describe('server-frontend', () => {
 
   let reqPath;
 
+  global.appRoot = path.join(__dirname, '/../');
+
   beforeEach(() => {
     jest.clearAllMocks().resetModules();
     reqPath = '';

app/frontend/webserver/handlers/__tests__/grid-trade-logs-export.test.js

@@ -18,6 +18,7 @@ describe('webserver/handlers/grid-trade-logs-export', () => {
   let postReq;
 
   let mockVerifyAuthenticated;
+  global.appRoot = path.join(__dirname, '/../../../../');
 
   beforeEach(async () => {
     jest.clearAllMocks().resetModules();

app/frontend/webserver/handlers/grid-trade-logs-export.js

@@ -52,6 +52,14 @@ const handleGridTradeLogsExport = async (funcLogger, app) => {
       });
     }
 
+    const fileName = `${symbol}-${moment().format('YYYY-MM-DD-HH-MM-ss')}.json`;
+    const fileFolder = path.join(global.appRoot, '/../public/data/logs');
+
+    if (!fs.existsSync(fileFolder)) {
+      fs.mkdirSync(fileFolder);
+    }
+    keepLastLogs(fileFolder, 10);
+
     const match = {};
     const group = {};
 
@@ -63,14 +71,6 @@ const handleGridTradeLogsExport = async (funcLogger, app) => {
     const rows = await mongo.findAll(logger, 'trailing-trade-logs', match, {
       sort: { loggedAt: -1 }
     });
-    const fileName = `${symbol}-${moment().format('YYYY-MM-DD-HH-MM-ss')}.json`;
-    const fileFolder = path.join(__dirname, '/../../../../public/data/logs');
-
-    if (!fs.existsSync(fileFolder)) {
-      fs.mkdirSync(fileFolder);
-    }
-
-    keepLastLogs(fileFolder, 10);
 
     const filePath = `${fileFolder}${directorySeparator}${fileName}`;
     fs.writeFileSync(filePath, JSON.stringify(rows));

app/server-frontend.js

@@ -52,7 +52,7 @@ const runFrontend = async serverLogger => {
     next();
   };
   app.use(attachmentMiddleware);
-  app.use(express.static(path.join(__dirname, '/../public')));
+  app.use(express.static(path.join(global.appRoot, '/../public')));
 
   // Must configure bull board before listen.
   configureBullBoard(app, logger);

app/server.js

@@ -1,9 +1,12 @@
+const path = require('path');
 const { logger: rootLogger, mongo } = require('./helpers');
 const { runBinance } = require('./server-binance');
 const { runCronjob } = require('./server-cronjob');
 const { runFrontend } = require('./server-frontend');
 const { runErrorHandler } = require('./error-handler');
 
+global.appRoot = path.resolve(__dirname);
+
 (async () => {
   const logger = rootLogger.child({
     gitHash: process.env.GIT_HASH || 'unspecified'