8.7 KiB
8.7 KiB
Enhanced Logging Examples
What Changed in the Logs
The scraper now displays 5 new intelligence fields during scraping, making it easy to spot opportunities in real-time.
Example 1: Bargain Opportunity (High Value)
Before:
[8766/15859]
[PAGE ford-generator-A1-34731-107]
Type: LOT
Title: Ford FGT9250E Generator...
Fetching bidding data from API...
Bid: EUR 500.00
Status: Geen Minimumprijs
Location: Venray, NL
Images: 6
Downloaded: 6/6 images
After (with new fields):
[8766/15859]
[PAGE ford-generator-A1-34731-107]
Type: LOT
Title: Ford FGT9250E Generator...
Fetching bidding data from API...
Bid: EUR 500.00
Status: Geen Minimumprijs
Followers: 12 watching ← NEW
Estimate: EUR 1200.00 - EUR 1800.00 ← NEW
>> BARGAIN: 58% below estimate! ← NEW (auto-calculated)
Condition: Used - Good working order ← NEW
Item: 2015 Ford FGT9250E ← NEW (enhanced)
Fetching bid history...
>> Bid velocity: 2.4 bids/hour ← Enhanced
Location: Venray, NL
Images: 6
Downloaded: 6/6 images
Intelligence at a glance:
- 🔥 BARGAIN ALERT - 58% below estimate = great opportunity
- 👁 12 followers - good interest level
- 📈 2.4 bids/hour - active bidding
- ✅ Good condition - quality item
- 💰 Potential profit: €700 - €1,300
Example 2: Sleeper Lot (Hidden Opportunity)
After (with new fields):
[8767/15859]
[PAGE macbook-pro-15-A1-35223-89]
Type: LOT
Title: MacBook Pro 15" 2019...
Fetching bidding data from API...
Bid: No bids
Status: Geen Minimumprijs
Followers: 47 watching ← NEW - HIGH INTEREST!
Estimate: EUR 800.00 - EUR 1200.00 ← NEW
Condition: Used - Like new ← NEW
Item: 2019 Apple MacBook Pro 15" ← NEW
Location: Amsterdam, NL
Images: 8
Downloaded: 8/8 images
Intelligence at a glance:
- 👀 47 followers but NO BIDS = sleeper lot
- 💎 Like new condition - premium quality
- 📊 Good estimate range - clear valuation
- ⏰ Early opportunity - bid before competition heats up
Example 3: Active Auction with Competition
After (with new fields):
[8768/15859]
[PAGE iphone-15-pro-A1-34987-12]
Type: LOT
Title: iPhone 15 Pro 256GB...
Fetching bidding data from API...
Bid: EUR 650.00
Status: Minimumprijs nog niet gehaald
Followers: 32 watching ← NEW
Estimate: EUR 900.00 - EUR 1100.00 ← NEW
Value gap: 28% below estimate ← NEW
Condition: Used - Excellent ← NEW
Item: 2023 Apple iPhone 15 Pro ← NEW
Fetching bid history...
>> Bid velocity: 8.5 bids/hour ← Enhanced - VERY ACTIVE
Location: Rotterdam, NL
Images: 12
Downloaded: 12/12 images
Intelligence at a glance:
- 🔥 Still 28% below estimate - good value
- 👥 32 followers + 8.5 bids/hour - high competition
- ⚡ Very active bidding - expect price to rise
- ⚠ Minimum not met - reserve price higher
- 📱 Excellent condition - premium item
Example 4: Overvalued (Warning)
After (with new fields):
[8769/15859]
[PAGE office-chair-A1-39102-45]
Type: LOT
Title: Office Chair Herman Miller...
Fetching bidding data from API...
Bid: EUR 450.00
Status: Minimumprijs gehaald
Followers: 8 watching ← NEW
Estimate: EUR 200.00 - EUR 300.00 ← NEW
>> WARNING: 125% ABOVE estimate! ← NEW (auto-calculated)
Condition: Used - Fair ← NEW
Item: Herman Miller Aeron ← NEW
Location: Utrecht, NL
Images: 5
Downloaded: 5/5 images
Intelligence at a glance:
- ⚠ 125% above estimate - significantly overvalued
- 📉 Low followers - limited interest
- ⚖ Fair condition - not premium
- 🚫 Avoid - better deals available
Example 5: No Estimate Available
After (with new fields):
[8770/15859]
[PAGE antique-painting-A1-40215-3]
Type: LOT
Title: Antique Oil Painting 19th Century...
Fetching bidding data from API...
Bid: EUR 1500.00
Status: Geen Minimumprijs
Followers: 24 watching ← NEW
Condition: Antique - Good for age ← NEW
Item: 1890 Unknown Artist Oil Painting ← NEW
Fetching bid history...
>> Bid velocity: 1.2 bids/hour ← Enhanced
Location: Maastricht, NL
Images: 15
Downloaded: 15/15 images
Intelligence at a glance:
- ℹ️ No estimate - difficult to value (common for art/antiques)
- 👁 24 followers - decent interest
- 🎨 Good condition for age - authentic piece
- 📊 Steady bidding - organic interest
Example 6: Fresh Listing (No Bids Yet)
After (with new fields):
[8771/15859]
[PAGE laptop-dell-xps-15-A1-40301-8]
Type: LOT
Title: Dell XPS 15 9520 Laptop...
Fetching bidding data from API...
Bid: No bids
Status: Geen Minimumprijs
Followers: 5 watching ← NEW
Estimate: EUR 800.00 - EUR 1000.00 ← NEW
Condition: Used - Good ← NEW
Item: 2022 Dell XPS 15 ← NEW
Location: Eindhoven, NL
Images: 10
Downloaded: 10/10 images
Intelligence at a glance:
- 🆕 Fresh listing - no bids yet
- 📊 Clear estimate - good valuation available
- 👀 5 followers - early interest
- 💼 Good condition - solid laptop
- ⏰ Early opportunity - bid before others
Log Output Summary
New Fields Shown:
- ✅ Followers: Watch count (popularity indicator)
- ✅ Estimate: Min-max estimated value range
- ✅ Value Gap: Auto-calculated bargain/overvaluation indicator
- ✅ Condition: Direct condition from auction house
- ✅ Item Details: Year + Brand + Model combined
Enhanced Fields:
- ✅ Bid velocity: Now shows as ">> Bid velocity: X.X bids/hour" (more prominent)
- ✅ Auto-alerts: ">> BARGAIN:" for >20% below estimate
Bargain Detection (Automatic):
- >20% below estimate: Shows ">> BARGAIN: X% below estimate!"
- <20% below estimate: Shows "Value gap: X% below estimate"
- Above estimate: Shows ">> WARNING: X% ABOVE estimate!"
Real-Time Intelligence Benefits
For Monitoring/Alerting:
# Easy to grep for opportunities in logs
docker logs scaev | grep "BARGAIN"
docker logs scaev | grep "Followers: [0-9]\{2\}" # High followers
docker logs scaev | grep "WARNING:" # Overvalued
For Live Monitoring:
Watch logs in real-time and spot opportunities as they're scraped:
docker logs -f scaev
You'll immediately see:
- 🔥 Bargains being discovered
- 👀 Popular lots (high followers)
- 📈 Active auctions (high bid velocity)
- ⚠ Overvalued items to avoid
Color Coding Suggestion (Optional)
For even better visibility, you could add color coding in the monitoring app:
- 🔴 RED: Overvalued (>120% estimate)
- 🟢 GREEN: Bargain (<80% estimate)
- 🟡 YELLOW: High followers (>20 watching)
- 🔵 BLUE: Active bidding (>5 bids/hour)
- ⚪ WHITE: Normal / No special signals
Integration with Monitoring App
The enhanced logs make it easy to:
-
Parse for opportunities:
- Grep for "BARGAIN" in logs
- Extract follower counts
- Track estimates vs current bids
-
Generate alerts:
- High followers + no bids = sleeper alert
- Large value gap = bargain alert
- High bid velocity = competition alert
-
Build dashboards:
- Show real-time scraping progress
- Highlight opportunities as they're found
- Track bargain discovery rate
-
Export intelligence:
- All data in database for analysis
- Logs provide human-readable summary
- Easy to spot patterns
Conclusion
The enhanced logging turns the scraper into a real-time opportunity scanner. You can now:
- ✅ Spot bargains as they're scraped (>20% below estimate)
- ✅ Identify popular items (high follower counts)
- ✅ Track competition (bid velocity)
- ✅ Assess condition (direct from auction house)
- ✅ Avoid overvalued lots (automatic warnings)
All without opening the database - the intelligence is right there in the logs! 🚀