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https://github.com/tiennm99/exchange-rate-export.git
synced 2026-10-11 03:13:21 +00:00
feat: server api
- tcb: work - bidv: not work
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@@ -14,165 +14,68 @@
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let results = [];
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let showTable = false;
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// Format date for display
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const formatDisplayDate = (dateStr) => {
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const [year, month, day] = dateStr.split('-');
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return `${day}/${month}/${year}`;
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};
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// Get date range between start and end dates
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const getDateRange = (start, end) => {
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const dates = [];
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let current = new Date(start);
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const last = new Date(end);
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while (current <= last) {
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dates.push(new Date(current));
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current.setDate(current.getDate() + 1);
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try {
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// Handle both yyyy-MM-dd and dd/MM/yyyy formats
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let date;
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if (dateStr.includes('/')) {
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const [day, month, year] = dateStr.split('/');
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date = new Date(`${year}-${month}-${day}`);
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} else {
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date = new Date(dateStr);
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}
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return format(date, 'dd/MM/yyyy');
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} catch (e) {
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return dateStr; // Return as is if parsing fails
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}
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return dates;
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};
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// Format date for API requests
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const formatDateForApi = (date) => {
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const d = new Date(date);
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const day = String(d.getDate()).padStart(2, '0');
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const month = String(d.getMonth() + 1).padStart(2, '0');
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const year = d.getFullYear();
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return `${day}/${month}/${year}`;
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};
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// Fetch BIDV exchange rates
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const fetchBIDVRates = async (dateObj) => {
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const dateStr = format(dateObj, 'dd/MM/yyyy');
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// First API call to get namerecord
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const timeRes = await fetch('https://bidv.com.vn/ServicesBIDV/ExchangeDetailSearchTimeServlet', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/x-www-form-urlencoded',
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},
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body: `date=${encodeURIComponent(dateStr)}`
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});
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if (!timeRes.ok) throw new Error('Failed to fetch BIDV time data');
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const timeData = await timeRes.json();
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if (timeData.status !== 1 || !timeData.data?.length) return null;
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// Get the latest record
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const latest = timeData.data.reduce((latest, current) =>
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current.time > latest.time ? current : latest, timeData.data[0]);
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// Second API call to get exchange rates
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const rateRes = await fetch('https://bidv.com.vn/ServicesBIDV/ExchangeDetailServlet', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/x-www-form-urlencoded',
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},
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body: `date=${encodeURIComponent(dateStr)}&time=${latest.namerecord}`
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});
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if (!rateRes.ok) throw new Error('Failed to fetch BIDV rate data');
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const rateData = await rateRes.json();
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if (rateData.status !== 1 || !rateData.data) return null;
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// Find USD data
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const usd = rateData.data.find(item => item.currency === 'USD');
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if (!usd) return null;
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return {
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date: dateStr,
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nameVI: usd.nameVI || '',
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muaTm: usd.muaTm || '',
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muaCk: usd.muaCk || '',
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currency: usd.currency || 'USD',
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nameEN: usd.nameEN || '',
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ban: usd.ban || ''
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};
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};
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// Fetch TCB exchange rates
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const fetchTCBRates = async (dateObj) => {
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const dateStr = format(dateObj, 'yyyy-MM-dd');
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const url = `https://techcombank.com/content/techcombank/web/vn/vi/cong-cu-tien-ich/ty-gia/_jcr_content.exchange-rates.${dateStr}.integration.json`;
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const res = await fetch(url);
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if (!res.ok) throw new Error('Failed to fetch TCB data');
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const data = await res.json();
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if (!data.exchangeRate?.data) return null;
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// Find USD data
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const usd = data.exchangeRate.data.find(item => item.label === 'USD (50,100)');
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if (!usd) return null;
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return {
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date: formatDisplayDate(dateStr),
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label: usd.label || '',
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askRate: usd.askRate || '',
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bidRateCK: usd.bidRateCK || '',
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bidRateTM: usd.bidRateTM || '',
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askRateTM: usd.askRateTM || '',
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sourceCurrency: usd.sourceCurrency || 'USD',
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targetCurrency: usd.targetCurrency || 'VND'
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};
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};
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// Handle fetch button click
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// Handle form submission
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const handleFetch = async () => {
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if (!startDate || !endDate) {
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error = 'Please select both start and end dates';
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return;
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}
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const start = new Date(startDate);
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const end = new Date(endDate);
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if (start > end) {
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error = 'Start date must be before end date';
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return;
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}
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const dateRange = getDateRange(start, end);
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if (dateRange.length > 31) {
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error = 'Date range cannot exceed 31 days';
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return;
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}
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isLoading = true;
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error = '';
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isLoading = true;
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results = [];
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showTable = false;
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try {
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const fetchPromises = dateRange.map(async (date) => {
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try {
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if (selectedBank === 'bidv') {
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return await fetchBIDVRates(date);
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} else {
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return await fetchTCBRates(date);
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}
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} catch (e) {
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console.error(`Error fetching data for ${date}:`, e);
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return null;
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}
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const start = new Date(startDate);
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const end = new Date(endDate);
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if (start > end) {
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error = 'Start date cannot be after end date';
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return;
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}
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// Call our server endpoint
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const response = await fetch('/api/exchange-rates', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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},
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body: JSON.stringify({
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startDate: start.toISOString().split('T')[0],
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endDate: end.toISOString().split('T')[0],
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bank: selectedBank
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})
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});
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const fetchedResults = await Promise.all(fetchPromises);
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results = fetchedResults.filter(Boolean);
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showTable = results.length > 0;
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if (results.length === 0) {
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error = 'No data found for the selected date range';
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if (!response.ok) {
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const errorData = await response.json();
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throw new Error(errorData.error || 'Failed to fetch exchange rates');
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}
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} catch (e) {
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console.error('Error fetching data:', e);
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error = 'An error occurred while fetching data. Please try again.';
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const data = await response.json();
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results = data.data || [];
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showTable = true;
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} catch (err) {
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error = `An error occurred while fetching exchange rates: ${err.message}`;
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console.error(err);
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} finally {
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isLoading = false;
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}
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@@ -0,0 +1,136 @@
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import { json } from '@sveltejs/kit';
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import { format, parse } from 'date-fns';
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// Helper function to fetch BIDV exchange rates
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async function fetchBIDVRates(dateObj) {
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const dateStr = format(dateObj, 'dd/MM/yyyy');
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try {
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// First API call to get namerecord
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const timeRes = await fetch('https://bidv.com.vn/ServicesBIDV/ExchangeDetailSearchTimeServlet', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/x-www-form-urlencoded',
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},
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body: `date=${encodeURIComponent(dateStr)}`
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});
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if (!timeRes.ok) throw new Error('Failed to fetch BIDV time data');
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const timeData = await timeRes.json();
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if (timeData.status !== 1 || !timeData.data?.length) return null;
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// Get the latest record
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const latest = timeData.data.reduce((latest, current) =>
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current.time > latest.time ? current : latest, timeData.data[0]);
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// Second API call to get exchange rates
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const rateRes = await fetch('https://bidv.com.vn/ServicesBIDV/ExchangeDetailServlet', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/x-www-form-urlencoded',
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},
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body: `date=${encodeURIComponent(dateStr)}&time=${latest.namerecord}`
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});
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if (!rateRes.ok) throw new Error('Failed to fetch BIDV rate data');
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const rateData = await rateRes.json();
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if (rateData.status !== 1 || !rateData.data) return null;
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// Find USD data
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const usd = rateData.data.find(item => item.currency === 'USD');
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if (!usd) return null;
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return {
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date: dateStr,
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nameVI: usd.nameVI || '',
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muaTm: usd.muaTm || '',
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muaCk: usd.muaCk || '',
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currency: usd.currency || 'USD',
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nameEN: usd.nameEN || '',
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ban: usd.ban || ''
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};
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} catch (error) {
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console.error('Error fetching BIDV rates:', error);
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return null;
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}
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}
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// Helper function to fetch TCB exchange rates
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async function fetchTCBRates(dateObj) {
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const dateStr = format(dateObj, 'yyyy-MM-dd');
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const url = `https://techcombank.com/content/techcombank/web/vn/vi/cong-cu-tien-ich/ty-gia/_jcr_content.exchange-rates.${dateStr}.integration.json`;
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const res = await fetch(url);
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if (!res.ok) throw new Error('Failed to fetch TCB data');
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const data = await res.json();
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if (!data.exchangeRate?.data) return null;
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// Find USD data
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const usd = data.exchangeRate.data.find(item => item.label === 'USD (50,100)');
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if (!usd) return null;
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return {
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date: dateStr,
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label: usd.label || '',
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askRate: usd.askRate || '',
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bidRateCK: usd.bidRateCK || '',
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bidRateTM: usd.bidRateTM || '',
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askRateTM: usd.askRateTM || '',
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sourceCurrency: usd.sourceCurrency || 'USD',
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targetCurrency: usd.targetCurrency || 'VND'
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};
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};
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// Get date range between start and end dates
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function getDateRange(start, end) {
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const dates = [];
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let current = new Date(start);
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const last = new Date(end);
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while (current <= last) {
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dates.push(new Date(current));
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current.setDate(current.getDate() + 1);
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}
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return dates;
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}
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export async function POST({ request }) {
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try {
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const { startDate, endDate, bank } = await request.json();
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if (!startDate || !endDate || !bank) {
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return json({ error: 'Missing required parameters' }, { status: 400 });
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}
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const dates = getDateRange(new Date(startDate), new Date(endDate));
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const results = [];
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for (const date of dates) {
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let rate = null;
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try {
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if (bank === 'bidv') {
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rate = await fetchBIDVRates(date);
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} else if (bank === 'tcb') {
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rate = await fetchTCBRates(date);
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}
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if (rate) {
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results.push(rate);
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}
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} catch (error) {
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console.error(`Error fetching rates for ${date}:`, error);
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// Continue with next date even if one fails
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}
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}
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return json({ data: results });
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} catch (error) {
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console.error('Server error:', error);
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return json({ error: 'Internal server error' }, { status: 500 });
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}
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}
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