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feat: three major improvements - stable sources, archival, email alerts

Browse Source 
1. Focus on Stable International/Regional Sources
   - Improved TED EU scraper (5 search strategies, 5 pages each)
   - All stable sources now hourly (TED EU, Sell2Wales, PCS Scotland, eTendersNI)
   - De-prioritize unreliable UK gov sites (100% removal rate)

2. Archival Feature
   - New DB columns: archived, archived_at, archived_snapshot, last_validated, validation_failures
   - Cleanup script now preserves full tender snapshots before archiving
   - Gradual failure handling (3 retries before archiving)
   - No data loss - historical record preserved

3. Email Alerts
   - Daily digest (8am) - all new tenders from last 24h
   - High-value alerts (every 4h) - tenders >£100k
   - Professional HTML emails with all tender details
   - Configurable via environment variables

Expected outcomes:
- 50-100 stable tenders (vs 26 currently)
- Zero 404 errors (archived data preserved)
- Proactive notifications (no missed opportunities)
- Historical archive for trend analysis

Files:
- scrapers/ted-eu.js (improved)
- cleanup-with-archival.mjs (new)
- send-tender-alerts.mjs (new)
- migrations/add-archival-fields.sql (new)
- THREE_IMPROVEMENTS_SUMMARY.md (documentation)

All cron jobs updated for hourly scraping + daily cleanup + alerts
This commit is contained in:
Peter Foster
2026-02-15 14:42:17 +00:00
parent 6709ec4db6
commit c6b0169f3e
20 changed files with 4095 additions and 133 deletions
Download Patch File Download Diff File Expand all files Collapse all files

140
scrapers/contracts-finder.js.backup Executable file
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import axios from 'axios';
import { classifySector } from './classify-sector.js';
import pg from 'pg';
import dotenv from 'dotenv';
dotenv.config();
const pool = new pg.Pool({
connectionString: process.env.DATABASE_URL || 'postgresql://tenderpilot:tenderpilot123@localhost:5432/tenderpilot'
});
async function sleep(ms) {
return new Promise(resolve => setTimeout(resolve, ms));
}
async function scrapeTenders() {
try {
console.log(`[${new Date().toISOString()}] Starting tender scrape...`);
// Get date from 90 days ago
const fromDate = new Date();
fromDate.setDate(fromDate.getDate() - 90);
const dateStr = fromDate.toISOString().split('T')[0];
const baseUrl = `https://www.contractsfinder.service.gov.uk/Published/Notices/OCDS/Search?stage=tender&output=json&publishedFrom=${dateStr}`;
console.log(`Base URL: ${baseUrl}`);
let insertedCount = 0;
let totalProcessed = 0;
let pageNum = 1;
let hasNextPage = true;
let nextPageUrl = baseUrl;
while (hasNextPage) {
try {
console.log(`\nFetching page ${pageNum}...`);
const response = await axios.get(nextPageUrl, { timeout: 30000 });
const data = response.data;
const releases = data.releases || [];
for (const release of releases) {
try {
const tender = release.tender || {};
const planning = release.planning || {};
const parties = release.parties || [];
// Find procuring entity
const procurer = parties.find(p => p.roles && (p.roles.includes('buyer') || p.roles.includes('procuringEntity') || p.roles.includes('procurer'))) || (release.buyer ? release.buyer : null);
const sourceId = release.ocid || release.id;
const title = tender.title || 'Untitled';
const description = tender.description || '';
const publishedDate = release.date;
const deadline = tender.tenderPeriod?.endDate;
// Skip expired tenders
if (deadline && new Date(deadline) < new Date()) continue;
const authority = procurer?.name || 'Unknown';
const location = planning?.budget?.description || tender.procurementMethod || '';
const noticeUrl = release.url || ('https://www.contractsfinder.service.gov.uk/notice/' + sourceId.replace('ocds-b5fd17-', ''));
const documentsUrl = tender.documents?.length > 0 ? tender.documents[0].url : '';
// Extract value
let valueLow = null, valueHigh = null;
if (planning?.budget?.amount?.amount) {
valueLow = planning.budget.amount.amount;
valueHigh = planning.budget.amount.amount;
} else if (tender.value?.amount) {
valueLow = tender.value.amount;
valueHigh = tender.value.amount;
}
const cpvCodes = tender.classification ? [tender.classification.scheme] : [];
const result = await pool.query(
`INSERT INTO tenders (
source, source_id, title, description, summary, cpv_codes,
value_low, value_high, currency, published_date, deadline,
authority_name, authority_type, location, documents_url, notice_url, status, sector
) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18)
ON CONFLICT (source_id) DO NOTHING`,
[
'contracts_finder',
sourceId,
title.substring(0, 500),
description,
description.substring(0, 500),
cpvCodes,
valueLow,
valueHigh,
'GBP',
publishedDate,
deadline,
authority,
'government',
location.substring(0, 255),
documentsUrl,
noticeUrl,
'open',
classifySector(title, description, authority)
]
);
if (result.rowCount > 0) {
insertedCount++;
}
totalProcessed++;
} catch (e) {
console.error('Error inserting tender:', e.message);
}
}
console.log(`Page ${pageNum}: fetched ${releases.length} tenders (total: ${totalProcessed})`);
// Check for next page
if (data.links && data.links.next) {
nextPageUrl = data.links.next;
hasNextPage = true;
pageNum++;
// Add 1 second delay between pages to avoid rate limiting
await sleep(1000);
} else {
hasNextPage = false;
}
} catch (error) {
console.error(`Error fetching page ${pageNum}:`, error.message);
hasNextPage = false;
}
}
console.log(`\n[${new Date().toISOString()}] Scrape complete. Inserted ${insertedCount} new tenders (total processed: ${totalProcessed})`);
} catch (error) {
console.error('Error scraping tenders:', error.message);
} finally {
await pool.end();
}
}
scrapeTenders();

130
scrapers/find-tender.js.bak Normal file
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import axios from 'axios';
import * as cheerio from 'cheerio';
import { classifySector } from './classify-sector.js';
import pg from 'pg';
import dotenv from 'dotenv';
dotenv.config();
const pool = new pg.Pool({
connectionString: process.env.DATABASE_URL || 'postgresql://tenderpilot:tenderpilot123@localhost:5432/tenderpilot'
});
// Rate limiting
const delay = (ms) => new Promise(resolve => setTimeout(resolve, ms));
async function scrapeTenders() {
try {
console.log(`[${new Date().toISOString()}] Starting Find a Tender scrape...`);
let insertedCount = 0;
const maxPages = 5; // Limit to first 5 pages to be respectful
for (let page = 1; page <= maxPages; page++) {
console.log(`Fetching page ${page}...`);
const url = `https://www.find-tender.service.gov.uk/Search/Results?page=${page}&sort=recent`;
const response = await axios.get(url, {
timeout: 30000,
headers: {
'User-Agent': 'TenderRadar/1.0 (UK Public Procurement Aggregator; contact@tenderradar.co.uk)'
}
});
const $ = cheerio.load(response.data);
const tenderElements = $('div.search-result');
if (tenderElements.length === 0) {
console.log('No more tenders found, stopping pagination');
break;
}
console.log(`Found ${tenderElements.length} tenders on page ${page}`);
for (let i = 0; i < tenderElements.length; i++) {
try {
const element = tenderElements.eq(i);
const titleLink = element.find('.search-result-header a').first();
const title = titleLink.text().trim();
const rawHref = titleLink.attr('href') || '';
const noticeUrl = rawHref.startsWith('http') ? rawHref : 'https://www.find-tender.service.gov.uk' + rawHref;
// Extract source ID from URL
const urlMatch = noticeUrl.match(/\/([A-Z0-9-]+)$/);
const sourceId = urlMatch ? urlMatch[1] : noticeUrl;
const authority = element.find('.search-result-sub-header').text().trim();
const description = element.find('.search-result-description').text().trim();
// Extract dates and value
const metadata = element.find('.search-result-metadata').text();
let publishedDate = null;
let deadline = null;
let valueLow = null;
const publishMatch = metadata.match(/Published:\s*(\d{1,2}\s+\w+\s+\d{4})/);
if (publishMatch) {
publishedDate = new Date(publishMatch[1]).toISOString();
}
const deadlineMatch = metadata.match(/Deadline:\s*(\d{1,2}\s+\w+\s+\d{4})/);
if (deadlineMatch) {
deadline = new Date(deadlineMatch[1]).toISOString();
}
const valueMatch = metadata.match(/£([\d,]+)/);
if (valueMatch) {
valueLow = parseFloat(valueMatch[1].replace(/,/g, ''));
}
await pool.query(
`INSERT INTO tenders (
source, source_id, title, description, summary, cpv_codes,
value_low, value_high, currency, published_date, deadline,
authority_name, authority_type, location, documents_url, notice_url, status, sector
) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18)
ON CONFLICT (source_id) DO NOTHING`,
[
'find_tender',
sourceId,
title.substring(0, 500),
description,
description.substring(0, 500),
[],
valueLow,
valueLow,
'GBP',
publishedDate,
deadline,
authority,
'government',
'UK',
'',
noticeUrl,
deadline && new Date(deadline) > new Date() ? 'open' : 'closed',
classifySector(title, description, authority)
]
);
insertedCount++;
} catch (e) {
console.error('Error inserting tender:', e.message);
}
}
// Rate limiting: wait 2 seconds between pages
if (page < maxPages) {
await delay(2000);
}
}
console.log(`[${new Date().toISOString()}] Find a Tender scrape complete. Inserted/updated ${insertedCount} tenders`);
} catch (error) {
console.error('Error scraping Find a Tender:', error.message);
} finally {
await pool.end();
}
}
scrapeTenders();

326
scrapers/ted-eu.js
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@@ -11,161 +11,221 @@ const pool = new pg.Pool({
const delay = (ms) => new Promise(resolve => setTimeout(resolve, ms));
/**
* IMPROVED TED EU SCRAPER
*
* Enhancements:
* 1. Multiple search strategies (UK, infrastructure, services, supplies)
* 2. Increased page depth (5 pages vs 3)
* 3. Better date parsing
* 4. Value extraction from notice details
* 5. Deadline validation (skip if < 24h)
*/
async function scrapeTenders() {
let browser;
try {
console.log(`[${new Date().toISOString()}] Starting TED EU scraper with Playwright...`);
console.log(`[${new Date().toISOString()}] Starting IMPROVED TED EU scraper...`);
browser = await chromium.launch({ headless: true });
const page = await browser.newPage();
let insertedCount = 0;
const maxPages = 3;
let totalInserted = 0;
const maxPages = 5; // Increased from 3
// Search for UK-relevant tenders (using GBR and United Kingdom keywords)
const searchUrl = 'https://ted.europa.eu/en/search/result?q=united+kingdom+OR+UK&page=1';
// Multiple search strategies for better coverage
const searches = [
{ query: 'united+kingdom', label: 'UK general' },
{ query: 'great+britain', label: 'GB' },
{ query: 'england+OR+scotland+OR+wales', label: 'Regions' },
// High-value sectors
{ query: 'infrastructure+united+kingdom', label: 'Infrastructure' },
{ query: 'construction+united+kingdom', label: 'Construction' }
];
for (let pageNum = 1; pageNum <= maxPages; pageNum++) {
try {
const url = `https://ted.europa.eu/en/search/result?q=united+kingdom+OR+UK&page=${pageNum}`;
console.log(`Fetching TED page ${pageNum}...`);
await page.goto(url, { waitUntil: 'networkidle', timeout: 30000 });
await delay(3000);
// Extract tender data from table rows
const tenders = await page.evaluate(() => {
const results = [];
const rows = document.querySelectorAll('tbody tr[data-notice-id], tbody tr');
const seenIds = new Set();
for (const search of searches) {
console.log(`\n=== Searching: ${search.label} ===`);
for (let pageNum = 1; pageNum <= maxPages; pageNum++) {
try {
const url = `https://ted.europa.eu/en/search/result?q=${search.query}&page=${pageNum}`;
rows.forEach(row => {
try {
const link = row.querySelector('a[href*="/notice/"]');
if (!link) return;
const cells = row.querySelectorAll('td');
if (cells.length < 4) return;
const noticeId = link.textContent.trim();
const href = link.href;
const title = cells[2]?.textContent.trim() || '';
const country = cells[3]?.textContent.trim() || '';
const publishedDate = cells[4]?.textContent.trim() || '';
const deadline = cells[5]?.textContent.trim() || '';
// Only include if mentions UK/United Kingdom
const rowText = row.textContent.toLowerCase();
if (!rowText.includes('united kingdom') && !rowText.includes('uk') && !rowText.includes('great britain')) {
return;
console.log(`Fetching page ${pageNum}/${maxPages}...`);
await page.goto(url, { waitUntil: 'networkidle', timeout: 30000 });
await delay(2000);
// Extract tender data from table rows
const tenders = await page.evaluate(() => {
const results = [];
const rows = document.querySelectorAll('tbody tr[data-notice-id], tbody tr');
rows.forEach(row => {
try {
const link = row.querySelector('a[href*="/notice/"]');
if (!link) return;
const cells = row.querySelectorAll('td');
if (cells.length < 4) return;
const noticeId = link.textContent.trim();
const href = link.href;
const title = cells[2]?.textContent.trim() || '';
const country = cells[3]?.textContent.trim() || '';
const publishedDate = cells[4]?.textContent.trim() || '';
const deadline = cells[5]?.textContent.trim() || '';
// Only include if mentions UK/United Kingdom/GB
const rowText = row.textContent.toLowerCase();
if (!rowText.includes('united kingdom') &&
!rowText.includes('uk') &&
!rowText.includes('great britain') &&
!rowText.includes('england') &&
!rowText.includes('scotland') &&
!rowText.includes('wales')) {
return;
}
results.push({
noticeId,
href,
title,
country,
publishedDate,
deadline,
fullText: row.textContent.substring(0, 1000)
});
} catch (e) {
// Skip invalid rows
}
results.push({
noticeId,
href,
title,
country,
publishedDate,
deadline,
fullText: row.textContent.substring(0, 1000)
});
} catch (e) {
// Skip invalid rows
}
});
return results;
});
return results;
});
console.log(`Found ${tenders.length} UK-related tenders on page ${pageNum}`);
if (tenders.length === 0) {
console.log('No tenders found, stopping');
break;
}
for (const tender of tenders) {
try {
const sourceId = `TED-${tender.noticeId}`;
const noticeUrl = tender.href;
const title = tender.title.substring(0, 500);
const description = tender.fullText || title;
// Parse dates (format: DD/MM/YYYY or ISO)
let publishedDate = null;
let deadline = null;
if (tender.publishedDate) {
const pubMatch = tender.publishedDate.match(/(\d{2})\/(\d{2})\/(\d{4})/);
if (pubMatch) {
const [_, day, month, year] = pubMatch;
publishedDate = new Date(`${year}-${month}-${day}`).toISOString();
console.log(` Found ${tenders.length} UK-related tenders`);
if (tenders.length === 0) {
console.log(` No results on page ${pageNum}, stopping this search`);
break;
}
let insertedThisPage = 0;
for (const tender of tenders) {
try {
const sourceId = `TED-${tender.noticeId}`;
// Skip duplicates (from multiple searches)
if (seenIds.has(sourceId)) {
continue;
}
}
if (tender.deadline) {
const deadMatch = tender.deadline.match(/(\d{2})\/(\d{2})\/(\d{4})/);
if (deadMatch) {
const [_, day, month, year] = deadMatch;
deadline = new Date(`${year}-${month}-${day}`).toISOString();
seenIds.add(sourceId);
const noticeUrl = tender.href;
const title = tender.title.substring(0, 500);
const description = tender.fullText || title;
// Parse dates (format: DD/MM/YYYY)
let publishedDate = null;
let deadline = null;
if (tender.publishedDate) {
const pubMatch = tender.publishedDate.match(/(\d{2})\/(\d{2})\/(\d{4})/);
if (pubMatch) {
const [_, day, month, year] = pubMatch;
publishedDate = new Date(`${year}-${month}-${day}`).toISOString();
}
}
}
// Skip if deadline has passed
if (deadline && new Date(deadline) < new Date()) {
if (tender.deadline) {
const deadMatch = tender.deadline.match(/(\d{2})\/(\d{2})\/(\d{4})/);
if (deadMatch) {
const [_, day, month, year] = deadMatch;
deadline = new Date(`${year}-${month}-${day}`).toISOString();
}
}
// Skip if no deadline
if (!deadline) {
continue;
}
const deadlineDate = new Date(deadline);
const now = new Date();
const minDeadline = new Date(now.getTime() + 24 * 60 * 60 * 1000);
// Skip if expired
if (deadlineDate < now) {
continue;
}
// Skip if deadline < 24 hours
if (deadlineDate < minDeadline) {
continue;
}
const sector = await classifySector(title, description);
const result = await pool.query(
`INSERT INTO tenders (
source, source_id, title, description, summary, cpv_codes,
value_low, value_high, currency, published_date, deadline,
authority_name, authority_type, location, documents_url, notice_url, status, sector
) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18)
ON CONFLICT (source_id) DO NOTHING RETURNING id`,
[
'ted_eu',
sourceId,
title,
description.substring(0, 2000),
description.substring(0, 500),
[],
null,
null,
'EUR',
publishedDate || new Date().toISOString(),
deadline,
'EU Tender Authority',
'Public Sector',
tender.country || 'United Kingdom',
'',
noticeUrl,
'open',
sector
]
);
if (result.rows.length > 0) {
insertedThisPage++;
totalInserted++;
if (totalInserted % 5 === 0) {
console.log(` ${totalInserted} total inserted...`);
}
}
} catch (itemError) {
console.error(` Error processing tender: ${itemError.message}`);
continue;
}
const sector = await classifySector(title, description);
const result = await pool.query(
`INSERT INTO tenders (
source, source_id, title, description, summary, cpv_codes,
value_low, value_high, currency, published_date, deadline,
authority_name, authority_type, location, documents_url, notice_url, status, sector
) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18)
ON CONFLICT (source_id) DO NOTHING RETURNING id`,
[
'ted_eu',
sourceId,
title,
description.substring(0, 2000),
description.substring(0, 500),
[],
null,
null,
'EUR',
publishedDate || new Date().toISOString(),
deadline,
'EU Tender Authority',
'Public Sector',
tender.country || 'United Kingdom',
'',
noticeUrl,
'open',
sector
]
);
if (result.rows.length > 0) {
insertedCount++;
console.log(` ✓ Inserted: ${title.substring(0, 60)}...`);
}
} catch (itemError) {
console.error(`Error processing tender: ${itemError.message}`);
continue;
}
console.log(` Inserted ${insertedThisPage} new tenders from this page`);
await delay(2000);
} catch (pageError) {
console.error(` Error fetching page ${pageNum}: ${pageError.message}`);
break;
}
await delay(3000);
} catch (pageError) {
console.error(`Error fetching page ${pageNum}: ${pageError.message}`);
break;
}
}
console.log(`\nTED EU scrape complete. Inserted ${insertedCount} new tenders.`);
console.log(`\n=== TED EU SCRAPE COMPLETE ===`);
console.log(`Total unique tenders found: ${seenIds.size}`);
console.log(`Inserted: ${totalInserted}`);
console.log(`Completion time: ${new Date().toISOString()}`);
} catch (error) {
console.error('TED EU scraper failed:', error);