Payment system - Stripe integration

[bri25yu]

Context
As of Spring 2014, HKN has a Stripe account (think Paypal or Square). This account is used for companies to pay us for info sessions, career fair tablings, or other services that we provide.
Once a company signs up for one of these services through Indrel (Industrial Relations), Indrel then sends them a link including the amount they’re charging the company (through the URI of the link) that is simply a page with a Stripe API that the company can enter their CC information through.

The following is an example of the pipeline that this runs through. Suppose there’s a company called Sahara that originally was an online bookstore, but now sells a variety of merchandise for online shoppers. The CEO, Jeff B. Zoss, wants to hold a Sahara info session at Berkeley, so he contacts HKN’s Industrial Relations committee. They work out all the logistical details, naming the info session “Shop at Sahara” with an associated cost of $420.69.

In order to charge Mr. Zoss and Sahara, Indrel sends them a link: hkn.eecs.berkeley.edu/transactions/new?amount=42069&description=Shop%20at%20Sahara. The URI first points to the HKN-Rails endpoint “transactions”. Within transactions, we denote that this is a new transaction by using the “new” page. To pass the information of the name and amount of the transaction, we include them as query variables. First, we append ? the denote that the following are query variables, then amount=42069 to pass an amount value of $420.69, and description=Shop%20at%20Sahara to pass in a description of “Shop at Sahara”. The %20 are html identifiers for the space “ “ character.

The new transaction page gives Sahara the ability to securely input their credit card and payment information, which we then pass to the Stripe API (along with the description and payment amount) to charge their bank account. The Stripe API runs in the background (this part is irrelevant, you will not be expected to know how the Stripe API works) to process the transaction. Once the transaction is completed, HKN-Rails redirects Mr. Zoss to the “show” page that tells him that the transaction was successful.

Goal
We want to replicate this functionality from the old website (HKN-Rails) to the new website. At this point, we’re assuming that you’ve walked through the Django tutorial. First, begin research into Stripe’s API. Write up a short piece of documentation on how to interact with Stripe’s API using Django and Python (the quality of this documentation should match the quality of the HKN-Web setup wiki page). Then, implement the same functionality found on the old website into the new website. Finally, submit a PR to hknweb master with your branch!