New cheat sheet: Jump Start Credit Card Processing in Ruby

Hey guys… it’s me :wink:

I’ve come out of a long cheat sheet-free period!

I want to share with you my new, really massive “cheat sheet” on credit
card processing:

  • the process,
  • how it works,
  • what you need to get the right accounts, and of course,
  • how to get started with ActiveMerchant.

Download it here: http://jumpstartcc.com/

Aaaand… Thomas F. contributed a spiffy JavaScript for detecting CC
types and validating against the Luhn10 algorithm.

This little guide is based on what we learned developing our new time
tracking service, freckle: http://letsfreckle.com. Even with the help of
some excellent existing libraries, the whole process was brutal!

I hate being brutalized! And there is crap all for resouces out there on
this topic, so I figured I’d share the knowledge. :slight_smile:

Let me know what you think!

Amy

Thank you Amy - always a (brutal) and mysterious process.

Jodi

Hi Amy,
Without having looked at your cheat sheet yet, nor at any code that
might be
out there for validating credit card numbers, can I put in a request to
eliminate one of my (many, I’m sure) pet peeves…

Did/can you address the issue of allowing the end user to put spaces in
credit card numbers?

I find it much easier to enter 4 digits at a time, as they are printed
on my
credit card, separated by spaces and get annoyed at sites that require
that
I enter all 16 digits in one swell foop.

Whew! Boy am I glad I got that off my chest!

–wpd

Hi,

Very clear and detailed document, great pdf :slight_smile:

Thanks,
Jan

Patrick:

Did/can you address the issue of allowing the end user to put spaces in
credit card numbers?

Oh, great idea. I hate that too! I didn’t think of it when I was
writing, but I will definitely add it, one way or another.

Perhaps we can add it to the JavaScript as a way of encouraging good
behavior.

Whew! Boy am I glad I got that off my chest!

I know how that feels!

Anybody else with ideas, suggestions, or questions… let 'er rip!

Oh, and if it helped you, I wouldn’t mind hearing that either :wink:

Cheers,

Amy

Anybody else with ideas, suggestions, or questions… let 'er rip!

Oh, and if it helped you, I wouldn’t mind hearing that either :wink:

Cheers,

Amy
What did you use to type the mini-book? It looks fantastic and is much
easier to read than a boring manual! Is it LateX? OpenOffice? M$ Word?
Other.

Where did you get all these cool little images? Do you crate them
yourself or do you have a pool of images in which you can pick?

Best regards,

Ok, it says a lot when I find myself chuckling at the sheer cuteness
of a technical guide.

Ok, it says a lot when I find myself chuckling at the sheer cuteness
of a technical guide.

Forgot to mention - Great Job.

Hi,
very nice ! (though mostly US-centric :wink: )
Another good source, if you want to use Paypal specifically, are Ryan
Bates’s last 3 RailsCasts.
Rgds,

Elise

This is fantastic, and just in the nick of time.

What other guides have you guys written?

Matt Grande wrote:

This is fantastic, and just in the nick of time.

Glad it’s helpful :slight_smile: We’ll be blogging more about this stuff on our
site: http://letsfreckle.com/blog.

What other guides have you guys written?

None like this, yet.

We’re working on a ~60-page ebook on JavaScript performance and scaling,
specifically, that I hope to publish in February, for $29 (including
some awesome tools we’ll also OSS later).

Sign up for the email list on jumpstartcc.com and I’ll send you an early
adopter discount :wink:

Matt, I don’t know if you’re familiar with my older cheat sheets.
They’re not this big, but clearly I’ve been working up to it:

http://www.slash7.com/cheats/activerecord_cheatsheet.pdf
http://www.slash7.com/cheats/form_helpers.pdf
http://www.slash7.com/cheats/scriptaculous_fx1.pdf
http://www.slash7.com/articles/2006/10/8/rjs-demistified-with-pretty-colors

For the record, I do these up in Omnigraffle, although I’m about to
ditch that in favor of either Keynote (unlikely) or InDesign (likely)
for any future 10-pagers. I am an OG ninja, though, so I don’t think I’d
recommend the tool to anyone else.

Where did you get all these cool little images? Do you crate them yourself or do you have a pool of images in which you can pick?

The illustrations are from istockphoto.com. I probably dropped about
$100-$120 on stock art for this baby. I do not like to do a half-assed
job.

Thanks for all the feedback :smiley:

Amy

Hassan S. wrote:

Major props for creating the CC guide with an aspect ratio that makes
sense for reading online. :slight_smile:

Thanks, Hassan :slight_smile: I’m always trying to learn & get better :slight_smile:

Amy

On Wed, Jan 7, 2009 at 8:44 AM, Amy Hoy
[email protected] wrote:

… I don’t know if you’re familiar with my older cheat sheets.

Amy, thanks for those links, but looking at one also reminded me –

Major props for creating the CC guide with an aspect ratio that makes
sense for reading online. :slight_smile:

One of the main reasons I generally despise PDF is having to scroll
up and down to read something formatted for an vertically oriented
8.5x11"/A4 printed page rather than a typical wider-than-tall screen.

So thank you, thank you, thank you!


Hassan S. ------------------------ [email protected]

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