Chapter 13: Case Studies

Real-World Implementations

Throughout this book, we’ve built the components for Etsy automation. In this chapter, we examine how these tools come together in real production scenarios. Each case study represents a common pattern in digital product selling.

Case Study 1: Printable Art Shop

The Challenge

Sarah runs a shop selling digital wall art printables. She has 200+ designs in multiple sizes (5x7, 8x10, 11x14, 16x20) and needs to:

The Solution

# case_studies/printable_art/size_manager.py
"""Automated size variant management for printable art."""

from typing import Dict, List, Tuple
from dataclasses import dataclass
from etsy_client.resilient_client import ResilientEtsyClient
from etsy_client.listings import ListingOperations
from etsy_client.inventory import InventoryOperations


@dataclass
class PrintSize:
    """Print size configuration."""
    name: str
    width: int  # inches
    height: int  # inches
    price_multiplier: float
    
    @property
    def aspect_ratio(self) -> float:
        return self.width / self.height


class PrintableSizeManager:
    """
    Manage print size variants for digital art.
    """
    
    STANDARD_SIZES = [
        PrintSize("5x7", 5, 7, 0.6),
        PrintSize("8x10", 8, 10, 0.8),
        PrintSize("11x14", 11, 14, 1.0),  # Base price
        PrintSize("16x20", 16, 20, 1.3),
        PrintSize("18x24", 18, 24, 1.5),
        PrintSize("24x36", 24, 36, 2.0),
    ]
    
    def __init__(
        self,
        client: ResilientEtsyClient,
        shop_id: int,
        base_price: float = 5.00
    ):
        self.client = client
        self.shop_id = shop_id
        self.base_price = base_price
        self.listing_ops = ListingOperations(client)
        self.inventory_ops = InventoryOperations(client)
    
    def get_size_prices(self) -> Dict[str, float]:
        """Calculate prices for all sizes."""
        return {
            size.name: round(self.base_price * size.price_multiplier, 2)
            for size in self.STANDARD_SIZES
        }
    
    def create_size_inventory(
        self,
        listing_id: int,
        sizes: List[str] = None
    ) -> Dict:
        """
        Create inventory products for sizes.
        
        Args:
            listing_id: Target listing
            sizes: Size names to include (all if None)
        """
        if sizes is None:
            sizes = [s.name for s in self.STANDARD_SIZES]
        
        prices = self.get_size_prices()
        
        products = []
        for size_name in sizes:
            if size_name in prices:
                products.append({
                    'sku': f"PRINT-{listing_id}-{size_name.replace('x', '')}",
                    'property_values': [{
                        'property_name': 'Size',
                        'values': [size_name]
                    }],
                    'offerings': [{
                        'price': prices[size_name],
                        'quantity': 999,
                        'is_enabled': True
                    }]
                })
        
        return self.inventory_ops.update_inventory(
            listing_id,
            products=products
        )
    
    def update_all_prices(
        self,
        new_base_price: float
    ) -> List[Dict]:
        """
        Update prices across all printable listings.
        
        Args:
            new_base_price: New base price (11x14)
        """
        self.base_price = new_base_price
        prices = self.get_size_prices()
        
        results = []
        
        # Get all active listings
        listings = self.listing_ops.get_all_listings(
            self.shop_id, 
            state="active"
        )
        
        for listing in listings:
            if self._is_printable(listing):
                try:
                    inventory = self.inventory_ops.get_inventory(
                        listing['listing_id']
                    )
                    
                    # Update prices
                    updated_products = []
                    for product in inventory.get('products', []):
                        size = self._extract_size(product)
                        if size and size in prices:
                            product['offerings'][0]['price'] = prices[size]
                            updated_products.append(product)
                    
                    if updated_products:
                        self.inventory_ops.update_inventory(
                            listing['listing_id'],
                            products=updated_products
                        )
                        results.append({
                            'listing_id': listing['listing_id'],
                            'status': 'updated'
                        })
                        
                except Exception as e:
                    results.append({
                        'listing_id': listing['listing_id'],
                        'status': 'error',
                        'error': str(e)
                    })
        
        return results
    
    def _is_printable(self, listing: Dict) -> bool:
        """Check if listing is a printable."""
        tags = listing.get('tags', [])
        return any(
            'printable' in tag.lower() or 'digital' in tag.lower()
            for tag in tags
        )
    
    def _extract_size(self, product: Dict) -> str:
        """Extract size from product properties."""
        for prop in product.get('property_values', []):
            if prop.get('property_name', '').lower() == 'size':
                values = prop.get('values', [])
                if values:
                    return values[0]
        return None


# Usage script
def manage_printable_sizes():
    """Example usage for printable art shop."""
    from config import Config
    from etsy_client.users import get_my_shop_id
    
    client = ResilientEtsyClient(
        api_key=Config.ETSY_API_KEY,
        access_token=Config.ETSY_ACCESS_TOKEN
    )
    
    shop_id = get_my_shop_id(client)
    manager = PrintableSizeManager(client, shop_id, base_price=5.00)
    
    # Show current pricing
    print("Current Size Pricing:")
    for size, price in manager.get_size_prices().items():
        print(f"  {size}: ${price:.2f}")
    
    # Update all prices with new base
    print("\nUpdating all listings to new base price of $6.00...")
    results = manager.update_all_prices(6.00)
    
    updated = sum(1 for r in results if r['status'] == 'updated')
    print(f"Updated {updated} listings")

Results


Case Study 2: Digital Planner Business

The Challenge

Mike sells digital planners with seasonal themes. His challenges:

The Solution

# case_studies/planner/collection_manager.py
"""Collection and bundle management for digital planners."""

from typing import Dict, List, Optional
from datetime import datetime, timedelta
from dataclasses import dataclass
from enum import Enum

from etsy_client.resilient_client import ResilientEtsyClient
from etsy_client.listings import ListingOperations, ListingData
from etsy_client.digital import DigitalFileOperations


class PlannerFormat(Enum):
    PDF = "pdf"
    GOODNOTES = "goodnotes"
    NOTABILITY = "notability"
    BOTH = "both"


@dataclass
class PlannerProduct:
    """Digital planner product definition."""
    name: str
    format: PlannerFormat
    base_price: float
    files: Dict[str, str]  # format -> file path
    tags: List[str]
    season: Optional[str] = None
    year: Optional[int] = None
    month: Optional[int] = None


class CollectionLauncher:
    """
    Launch collections of related products.
    """
    
    def __init__(self, client: ResilientEtsyClient, shop_id: int):
        self.client = client
        self.shop_id = shop_id
        self.listing_ops = ListingOperations(client)
        self.digital_ops = DigitalFileOperations(client)
    
    def create_seasonal_collection(
        self,
        products: List[PlannerProduct],
        collection_name: str,
        launch_date: datetime = None
    ) -> List[Dict]:
        """
        Create all products in a seasonal collection.
        
        Products are created as drafts if launch_date is future.
        """
        results = []
        is_draft = launch_date and launch_date > datetime.now()
        
        for product in products:
            try:
                # Create listing
                listing = self._create_planner_listing(
                    product,
                    collection_name,
                    state="draft" if is_draft else "active"
                )
                
                # Upload files
                listing_id = listing['listing_id']
                for format_name, file_path in product.files.items():
                    self.digital_ops.upload_file(
                        self.shop_id,
                        listing_id,
                        file_path,
                        f"{product.name} - {format_name.upper()}"
                    )
                
                results.append({
                    'product': product.name,
                    'listing_id': listing_id,
                    'status': 'created'
                })
                
            except Exception as e:
                results.append({
                    'product': product.name,
                    'status': 'error',
                    'error': str(e)
                })
        
        return results
    
    def _create_planner_listing(
        self,
        product: PlannerProduct,
        collection: str,
        state: str
    ) -> Dict:
        """Create a single planner listing."""
        
        # Build tags
        tags = list(product.tags)
        tags.extend([
            'digital planner',
            'instant download',
            product.format.value
        ])
        
        if product.season:
            tags.append(product.season)
        if product.year:
            tags.append(str(product.year))
        
        listing_data = ListingData(
            title=f"{product.name} | {collection} Collection",
            description=self._generate_description(product),
            price=product.base_price,
            quantity=999,
            who_made="i_did",
            when_made="2020_2024",
            taxonomy_id=self._get_planner_taxonomy(),
            is_digital=True,
            tags=tags[:13],  # Max 13 tags
            state=state
        )
        
        return self.listing_ops.create_listing(self.shop_id, listing_data)
    
    def _generate_description(self, product: PlannerProduct) -> str:
        """Generate listing description."""
        formats = ", ".join(product.files.keys())
        
        return f"""
{product.name}

✨ WHAT'S INCLUDED:
• Digital planner file(s) in {formats} format
• Instant download after purchase
• For personal use only

📱 COMPATIBLE WITH:
• GoodNotes, Notability, Noteshelf
• Any PDF reader
• Works on iPad, tablet, or computer

⬇️ HOW TO USE:
1. Purchase and download
2. Import to your favorite app
3. Start planning!

💝 Thank you for shopping small!
"""
    
    def _get_planner_taxonomy(self) -> int:
        """Get taxonomy ID for planners."""
        # Digital planners typically: Craft Supplies > Planning
        return 1234  # Replace with actual taxonomy ID


class BundleManager:
    """
    Create and manage product bundles.
    """
    
    def __init__(self, client: ResilientEtsyClient, shop_id: int):
        self.client = client
        self.shop_id = shop_id
        self.listing_ops = ListingOperations(client)
        self.digital_ops = DigitalFileOperations(client)
    
    def create_bundle(
        self,
        bundle_name: str,
        component_listings: List[int],
        discount_percent: float = 20
    ) -> Dict:
        """
        Create a bundle listing from existing products.
        
        Args:
            bundle_name: Name for the bundle
            component_listings: Listing IDs to bundle
            discount_percent: Discount off combined price
        """
        # Get component details
        components = []
        total_price = 0
        all_files = []
        
        for listing_id in component_listings:
            listing = self.listing_ops.get_listing(listing_id)
            components.append(listing)
            
            price = listing['price']['amount'] / listing['price']['divisor']
            total_price += price
            
            # Get files
            files = self.digital_ops.get_listing_files(self.shop_id, listing_id)
            all_files.extend(files.get('results', []))
        
        # Calculate bundle price
        bundle_price = total_price * (1 - discount_percent / 100)
        
        # Build bundle description
        component_list = "\n".join(
            f"{c['title']}" for c in components
        )
        
        description = f"""
🎁 BUNDLE & SAVE {discount_percent}%!

This bundle includes:
{component_list}

Individual value: ${total_price:.2f}
Bundle price: ${bundle_price:.2f}
You save: ${total_price - bundle_price:.2f}

All items delivered instantly as digital downloads.
"""
        
        # Create bundle listing
        listing_data = ListingData(
            title=f"{bundle_name} | BUNDLE SAVE {discount_percent}%",
            description=description,
            price=round(bundle_price, 2),
            quantity=999,
            who_made="i_did",
            when_made="2020_2024",
            taxonomy_id=self._get_planner_taxonomy(),
            is_digital=True,
            tags=['bundle', 'digital planner', 'instant download'],
            state="active"
        )
        
        bundle = self.listing_ops.create_listing(self.shop_id, listing_data)
        
        # Note: You would need to upload the combined files to the bundle
        
        return {
            'bundle_listing_id': bundle['listing_id'],
            'components': len(components),
            'original_price': total_price,
            'bundle_price': bundle_price,
            'discount': discount_percent
        }
    
    def _get_planner_taxonomy(self) -> int:
        return 1234  # Replace with actual


class DatedProductManager:
    """
    Manage products with expiration dates.
    """
    
    def __init__(self, client: ResilientEtsyClient, shop_id: int):
        self.client = client
        self.shop_id = shop_id
        self.listing_ops = ListingOperations(client)
    
    def deactivate_expired(self, reference_date: datetime = None) -> List[Dict]:
        """
        Deactivate dated products that have expired.
        
        Args:
            reference_date: Date to check against (default: today)
        """
        if reference_date is None:
            reference_date = datetime.now()
        
        results = []
        listings = self.listing_ops.get_all_listings(
            self.shop_id, 
            state="active"
        )
        
        for listing in listings:
            expiry = self._extract_expiry(listing)
            
            if expiry and expiry < reference_date:
                try:
                    self.listing_ops.update_listing(
                        listing['listing_id'],
                        state="inactive"
                    )
                    results.append({
                        'listing_id': listing['listing_id'],
                        'title': listing['title'],
                        'expired': expiry.strftime('%Y-%m'),
                        'status': 'deactivated'
                    })
                except Exception as e:
                    results.append({
                        'listing_id': listing['listing_id'],
                        'status': 'error',
                        'error': str(e)
                    })
        
        return results
    
    def _extract_expiry(self, listing: Dict) -> Optional[datetime]:
        """
        Extract expiry date from listing.
        
        Looks for year/month in tags or title.
        """
        title = listing.get('title', '').lower()
        tags = [t.lower() for t in listing.get('tags', [])]
        
        # Check for year in title
        import re
        year_match = re.search(r'20\d{2}', title)
        
        if year_match:
            year = int(year_match.group())
            
            # Check for month
            months = {
                'jan': 1, 'feb': 2, 'mar': 3, 'apr': 4,
                'may': 5, 'jun': 6, 'jul': 7, 'aug': 8,
                'sep': 9, 'oct': 10, 'nov': 11, 'dec': 12
            }
            
            for month_name, month_num in months.items():
                if month_name in title:
                    # Expires at end of that month
                    if month_num == 12:
                        return datetime(year + 1, 1, 1)
                    return datetime(year, month_num + 1, 1)
            
            # Year only - expires end of year
            return datetime(year + 1, 1, 1)
        
        return None

Results


Case Study 3: Template Shop

The Challenge

Lisa sells Canva and PowerPoint templates. She needs to:

The Solution

# case_studies/templates/analytics.py
"""Advanced analytics for template shops."""

from typing import Dict, List, Tuple
from collections import defaultdict
from datetime import datetime, timedelta
import statistics

from etsy_client.resilient_client import ResilientEtsyClient
from etsy_client.analytics import ShopAnalytics, ListingMetrics


class TemplateAnalytics:
    """
    Analytics specifically for template shops.
    """
    
    CATEGORIES = [
        'resume', 'presentation', 'social-media',
        'business-card', 'invoice', 'proposal',
        'instagram', 'pinterest', 'facebook'
    ]
    
    def __init__(self, client: ResilientEtsyClient, shop_id: int):
        self.client = client
        self.shop_id = shop_id
        self.analytics = ShopAnalytics(client, shop_id)
    
    def performance_by_category(self) -> Dict[str, Dict]:
        """
        Analyze performance broken down by template category.
        """
        metrics = self.analytics.get_all_listing_metrics()
        
        by_category = defaultdict(lambda: {
            'listings': 0,
            'views': 0,
            'favorites': 0,
            'sales': 0,
            'revenue': 0,
            'prices': []
        })
        
        for m in metrics:
            category = self._categorize(m.title)
            
            by_category[category]['listings'] += 1
            by_category[category]['views'] += m.views
            by_category[category]['favorites'] += m.favorites
            by_category[category]['sales'] += m.sales
            by_category[category]['revenue'] += m.revenue
            by_category[category]['prices'].append(m.price)
        
        # Calculate averages
        results = {}
        for cat, data in by_category.items():
            results[cat] = {
                'listings': data['listings'],
                'total_views': data['views'],
                'total_favorites': data['favorites'],
                'total_sales': data['sales'],
                'total_revenue': data['revenue'],
                'avg_price': statistics.mean(data['prices']) if data['prices'] else 0,
                'avg_views': data['views'] / data['listings'] if data['listings'] else 0,
                'conversion_rate': data['sales'] / data['views'] if data['views'] else 0
            }
        
        return dict(sorted(
            results.items(),
            key=lambda x: x[1]['total_revenue'],
            reverse=True
        ))
    
    def find_similar_products(
        self,
        listing_id: int,
        limit: int = 5
    ) -> List[Dict]:
        """
        Find similar products to a given listing.
        
        Uses tags and category matching.
        """
        from etsy_client.listings import ListingOperations
        listing_ops = ListingOperations(self.client)
        
        # Get target listing
        target = listing_ops.get_listing(listing_id)
        target_tags = set(target.get('tags', []))
        target_category = self._categorize(target['title'])
        
        # Get all listings
        all_listings = listing_ops.get_all_listings(self.shop_id, "active")
        
        # Score similarity
        scored = []
        for listing in all_listings:
            if listing['listing_id'] == listing_id:
                continue
            
            listing_tags = set(listing.get('tags', []))
            listing_category = self._categorize(listing['title'])
            
            # Score based on tag overlap and category match
            tag_overlap = len(target_tags & listing_tags)
            category_match = 1 if listing_category == target_category else 0
            
            score = tag_overlap * 2 + category_match * 5
            
            if score > 0:
                scored.append({
                    'listing_id': listing['listing_id'],
                    'title': listing['title'],
                    'score': score,
                    'shared_tags': list(target_tags & listing_tags)
                })
        
        # Sort by score
        scored.sort(key=lambda x: x['score'], reverse=True)
        
        return scored[:limit]
    
    def trending_categories(self, days: int = 7) -> List[Tuple[str, float]]:
        """
        Find categories with increasing sales.
        """
        # This would compare current period to previous
        current = self.performance_by_category()
        
        # Sort by recent views as proxy for trending
        return sorted(
            [(cat, data['avg_views']) for cat, data in current.items()],
            key=lambda x: x[1],
            reverse=True
        )
    
    def _categorize(self, title: str) -> str:
        """Categorize listing by title."""
        title_lower = title.lower()
        
        for category in self.CATEGORIES:
            if category in title_lower:
                return category
        
        return 'other'


class SimilarProductRecommender:
    """
    Add similar product recommendations to listings.
    """
    
    def __init__(
        self,
        client: ResilientEtsyClient,
        shop_id: int
    ):
        self.client = client
        self.shop_id = shop_id
        self.analytics = TemplateAnalytics(client, shop_id)
    
    def update_descriptions_with_similar(
        self,
        max_recommendations: int = 3
    ) -> List[Dict]:
        """
        Update listing descriptions to include similar products.
        """
        from etsy_client.listings import ListingOperations
        listing_ops = ListingOperations(self.client)
        
        results = []
        listings = listing_ops.get_all_listings(self.shop_id, "active")
        
        for listing in listings:
            listing_id = listing['listing_id']
            
            # Find similar
            similar = self.analytics.find_similar_products(
                listing_id, 
                max_recommendations
            )
            
            if not similar:
                continue
            
            # Build recommendation text
            rec_text = "\n\n---\n🎨 YOU MIGHT ALSO LIKE:\n"
            for s in similar:
                rec_text += f"{s['title']}\n"
            
            # Update description
            current_desc = listing.get('description', '')
            
            # Remove old recommendations if present
            if '🎨 YOU MIGHT ALSO LIKE:' in current_desc:
                current_desc = current_desc.split('🎨 YOU MIGHT ALSO LIKE:')[0].strip()
            
            new_desc = current_desc + rec_text
            
            try:
                listing_ops.update_listing(
                    listing_id,
                    description=new_desc
                )
                results.append({
                    'listing_id': listing_id,
                    'recommendations_added': len(similar)
                })
            except Exception as e:
                results.append({
                    'listing_id': listing_id,
                    'error': str(e)
                })
        
        return results

Results


Common Patterns Across Case Studies

1. Batch Operations

All case studies benefit from batch processing:

def batch_process(items, operation, batch_size=10, delay=1.0):
    """Process items in batches with rate limiting."""
    import time
    
    results = []
    for i in range(0, len(items), batch_size):
        batch = items[i:i + batch_size]
        
        for item in batch:
            try:
                result = operation(item)
                results.append({'item': item, 'result': result})
            except Exception as e:
                results.append({'item': item, 'error': str(e)})
        
        # Respect rate limits
        if i + batch_size < len(items):
            time.sleep(delay)
    
    return results

2. Data-Driven Decisions

def should_price_increase(listing_metrics: ListingMetrics) -> bool:
    """Determine if listing price should increase."""
    return (
        listing_metrics.conversion_rate > 0.03 and  # High conversion
        listing_metrics.views > 500 and              # Enough data
        listing_metrics.favorite_rate > 0.05         # High interest
    )

3. Graceful Degradation

def safe_operation(primary_fn, fallback_fn, *args, **kwargs):
    """Try primary operation, fall back on error."""
    try:
        return primary_fn(*args, **kwargs)
    except Exception as e:
        logging.warning(f"Primary failed: {e}, using fallback")
        return fallback_fn(*args, **kwargs)

Key Takeaways

  1. Automate the repetitive: Price updates, bulk edits, and routine tasks
  2. Track what matters: Category performance, format popularity, conversion rates
  3. Build for your niche: Printables, planners, and templates each have unique needs
  4. Test before scaling: Start with a few listings before updating hundreds

Moving Forward

You’ve seen how automation works in practice. The final chapter provides an action plan to implement these systems in your own shop.


← Chapter 12: Building a Complete Automation System Table of Contents Chapter 14: Action Plan →