Talk originally given at PayPal & PulsoSocial Developer Meetup on E-Commerce in Mexico This talk covers numerous innovations in the areas of commerce. As we explore these experiences, we'll look into considerations, difficulties and practical use cases around implementations.

1. Commerce Case Studies
Jonathan LeBlanc (@jcleblanc)
Head of Developer Evangelism (North America)
PayPal | Developer

3. The Digital Revolution

4. Physical Costs
Price of Goods
Storage
Shipping
Returns
…
Digital vs. Physical Goods
Digital Costs
…a few bytes

5. The Problems with the Model
Chargebacks and fraud
Copyright owner concerns
Tracking buyers

6. Preventing Fraud: Tracking Buyers
Email domain type
User browsing & buying habits
Manual review
Device Fingerprinting
IP to billing address location

7. https://panopticlick.eff.org/
More on Device Fingerprinting
Browser characteristic Bits of identifying
information
1 in x browsers with
same characterists
User Agent 12.01 4117.11
Browser Plugin Detail 6.8 111.13
Time Zone 21.6+ 3178409
Screen Size / Color Depth 4.56 23.58
System Fonts 21.6+ 3178409
Cookies Enabled? 0.44 1.35
Limited Supercookie Test 0.98 1.97

8. Mobile as a Primary Citizen

9. Working with the App Stores
Any product that can be purchased
from the app store needs to be
Physical goods are ok – Use a
WebView
Construct a wrapper the handle cross-
device requests

10. Working with These Models
Responsive, cross-platform HTML5
web applications
Reduce the number of screens to
checkout
Use knowledgeable identity systems

11. Data Reduction with Identity

12. Identity to Remove Complexities

13. Optimists consider that up to a 30% of
ecommerce sales increase is thanks to
cross-selling recommended products
fikobservatory
Personalized Recommendations

14. Creating with a Crowd

15. Crowdfunding vs. Group Funding
Many people funding a
single individual to
perform an end action
Many people funding an
end action

16. Why Crowdfunding is so Hard
Tracking money to its final source
Vetting project owners
Time to payment charge
Handling chargebacks

17. Group Funding Decisions
Short term vs. long term money
holding
Direct payment to 1 person or auth
/capture model?
Who is responsible for chargebacks /
refunds?

18. Building on a Data Backbone

20. Data Responsibility
Personalize, don’t
abuse
Anonymizing the data
sources

21. Now Announcing…

22. The New REST APIs in Mexico!

23. The Auth Mechanism

24. Fetching an Access Token
curl
https://api.sandbox.paypal.com/v1/oauth2/token
-H "Accept: application/json"
-H "Accept-Language: en_US"
-u "{CLIENTID}:{SECRET}"
-d "grant_type=client_credentials"

25. Create a Payment
curl -v
https://api.sandbox.paypal.com/v1/payments/payment
-H 'content-Type:application/json'
-H 'authorization:Bearer {ACCESS_TOKEN}'
-d '{
"intent":"sale",
"redirect_urls":{ … },
"payer": { "payment_method":"paypal" },
"transactions":[ ... ]
}'

26. "links": [{
"href": "https://api.sandbox.paypal.com/v1/payments/
payment/PAY-6RV705805EKEYSZ6Y",
"rel": "self",
"method": "GET"
},{
"href": "https://www.sandbox.paypal.com/webscr?
cmd=_express-checkout&token=EC-60U79N19609",
"rel": "approval_url",
"method": "REDIRECT"
},{
"href": "https://api.sandbox.paypal.com/v1/payments/
payment/PAY-6RV705805EKEYSZ6Y/execute",
"rel": "execute",
"method": "POST"
}
]

27. Execute a Payment
curl -v
https://api.sandbox.paypal.com/v1/payments/payme
nt/PAY-6RV70583SB2805EKEYSZ6Y/execute/
-H 'Content-Type:application/json'
-H 'Authorization:Bearer {ACCESS_TOKEN}'
-d '{ "payer_id" : "7E7MGXCWTTKK2" }'

28. PayPal Mexico Partner Program
www.paypal.com.mx/partnerprogram
Our New Developer Portal
https://developer.paypal.com
Resources

29. Thank You!
Jonathan LeBlanc (@jcleblanc)
Head of Developer Evangelism (North America)
PayPal | Developer