@cbetta @braintree_dev A Credit Card Walks into a Bar... by Cristiano Betta 1 Developer Advocate @braintree_dev A talk on credit cards in eCommerce
DevTalks Bucharest 2015 - A Credit Card Walks into a Bar...
Aug 03, 2015
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@cbetta@braintree_dev
A Credit Card Walks into a Bar...
by Cristiano Betta
1
Developer Advocate @braintree_dev
A talk on credit cards in eCommerce
@cbetta@braintree_dev
A Credit Card Form Walks into a Bar...A talk on credit cards in eCommerce
@cbetta@braintree_dev
A Credit Card Form Walks into a Bar...A talk on credit cards in eCommerce
A series of bad jokes
Developer Advocate
@braintree_dev
by Cristiano Betta
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
A Credit Card Walks into a Bar...
@cbetta@braintree_dev
he says to the bartender,
“I’ve been having a hard time meeting people”
the bartender says:
“Wait, aren’t you supposed to be good at generating...”
@cbetta@braintree_dev
“interest”
@cbetta@braintree_dev
THANK YOU!
@cbetta@braintree_dev
I <3 U Bucharest
@cbetta@braintree_dev
A Credit Card Walks into a Bar_
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I have a Cat
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Who has a “special” condition
@cbetta@braintree_dev 14
@cbetta@braintree_dev
But he thinks he is the king of the house
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Actually he has a kidney condition
@cbetta@braintree_dev
People always want to see more photos and
videos
@cbetta@braintree_dev
especially kids
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so...
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I wrote an application that...
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charges people money to see his face
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I know what you are thinking...
@cbetta@braintree_dev
I am an a**hole
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I am actually raising money for his kidney
surgery
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I promise!
@cbetta@braintree_dev
@cbetta@braintree_dev
A Credit Card Form Walks into a Bar...
@cbetta@braintree_dev
the bartender says,
“Why do you keep coming in here day after day ?”
The credit card form looks at him miserably says
“I’m just looking for some..."
@cbetta@braintree_dev
“validation”
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@cbetta@braintree_dev
@cbetta@braintree_dev
Things people should not do when building a Credit Card Form
@cbetta@braintree_dev
Things I think you should not do when building a Credit Card Form
@cbetta@braintree_dev
@cbetta@braintree_dev
baymard.com/lists/cart-abandonment-rate
@cbetta@braintree_dev
1.
@cbetta@braintree_dev
Add a CAPTCHA
@cbetta@braintree_dev
CAPTCHACompletely Automated Public Turing test
to tell Computers and Humans Apart
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
CAPTCHACompletely Automated Public Turing test
to tell Computers and Humans Apart
@cbetta@braintree_dev
CAPTCHACompletely Automated Process
That Causes Headaches and Anger
@cbetta@braintree_dev
2.
@cbetta@braintree_dev
Ask users to register
@cbetta@braintree_dev
Ask users to register ...before purchasing
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@cbetta@braintree_dev
A Credit Card Form Walks into a Bar...
@cbetta@braintree_dev
the bartender says,
“I haven’t seen you in a while!”
The credit card form looks at him and says
“Yeah, I had to go to jail. I was...”
@cbetta@braintree_dev
“Charged with bad humour"
@cbetta@braintree_dev
3.
@cbetta@braintree_dev
Ask me for the credit card type?
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
* totally copied from Wikipedia
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
jquerycreditcardvalidator.com
@cbetta@braintree_dev
@cbetta@braintree_dev
creditcardjs.com
@cbetta@braintree_dev
@cbetta@braintree_dev
I <3 Braintree
@cbetta@braintree_dev
obviously...
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
github.com/braintree/card-validator
@cbetta@braintree_dev
@cbetta@braintree_dev
4.
@cbetta@braintree_dev
C.V.Who?
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
jessepollak.github.io/card
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
kenkeiter.com/skeuocard
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
Hosted Fields
@cbetta@braintree_dev
braintreepayments.com/features/hosted-fields
@cbetta@braintree_dev
@cbetta@braintree_dev
5.
@cbetta@braintree_dev
You don’t format dates as they are on my card
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
6.
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6.
@cbetta@braintree_dev
A Credit Card Form Walks into a Bar...
@cbetta@braintree_dev
he tries to pick up someone at the bar,
They turn him down.
The credit card form looks at the bartender and says
“Well, this is awkward normally I’m
the one who..."
@cbetta@braintree_dev
“Declines”
@cbetta@braintree_dev
6.
@cbetta@braintree_dev
You don’t validate my card number inline
@cbetta@braintree_dev
Luhn Algorithm
@cbetta@braintree_dev
4217 6511 1111 1119
@cbetta@braintree_dev
4217 6511 1111 1119
9111 1111 1156 7124
@cbetta@braintree_dev
4217 6511 1111 1119
9111 1111 1156 7124
9212 1212 1213 7228
@cbetta@braintree_dev
14 + 6 + 11 + 19 = 50
4217 6511 1111 1119
9111 1111 1156 7124
9212 1212 1253 7228
@cbetta@braintree_dev
50 % 10 == 0 ?
4217 6511 1111 1119
14 + 6 + 11 + 19 = 50
9111 1111 1156 7124
9212 1212 1253 7228
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
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7.
@cbetta@braintree_dev
7.
@cbetta@braintree_dev
6b.
@cbetta@braintree_dev
You don’t know your limits!
@cbetta@braintree_dev
Card! Number of Digits!
AMEX! 15!
Visa! 13 or 16!
MasterCard! 16!
Discover! 16!
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
7.
@cbetta@braintree_dev
You don’t remember me
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
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8.
@cbetta@braintree_dev
You remember too much
@cbetta@braintree_dev
And then you lose my details!
@cbetta@braintree_dev
2014Home Depot 56M JP Morgan Chase 76M Staples 1.6M
@cbetta@braintree_dev
Tokenization
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
One more joke?
@cbetta@braintree_dev
A Credit Card Form Walks into a Bar...
@cbetta@braintree_dev
the bartender says,
“You are new to this joint aren’t you?”
The credit card form looks at him and says
“Yeah, I just..."
@cbetta@braintree_dev
“Discovered it”
@cbetta@braintree_dev
@cbetta@braintree_dev
9.
@cbetta@braintree_dev
You have a “reset” button
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@cbetta@braintree_dev
@cbetta@braintree_dev
10.
@cbetta@braintree_dev
Where was I again?
@cbetta@braintree_dev
@cbetta@braintree_dev
@cbetta@braintree_dev
That’s all folks!
@cbetta@braintree_dev
Encore?
@cbetta@braintree_dev
An American Express Walks into a Bar in Moscow...
@cbetta@braintree_dev
the bartender says,
“Sorry mate, You aren’t allowed in here without a...”
@cbetta@braintree_dev
“VISA”
@cbetta@braintree_dev
@cbetta@braintree_dev
baddonationforms.tumblr.com
@cbetta@braintree_dev
THANK YOU!
@cbetta@braintree_dev
Cristiano Betta
Developer Advocate Braintree_PayPal.
slideshare.net/cbetta braintreepayments.com
@braintree_dev @cbetta
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