title: Building a rudimentary accounting app
body: <p>I'm building a simple accounting app to be used for personal finance.</p>
  
  <p>A user might keep track of purchases, upcoming bills, recurring deposits, etc. It will be verrrrry simple.</p>
  
  <p>Two questions:</p>
  
  <p>1) Any advice I should keep in mind? Obviously, I'll use transactions where appropriate, but proper datatypes and other considerations would be nice to know about.</p>
  
  <p>2) Are there any APIs you know of I could use to periodically get a user's balance from their bank? i.e., an API that would make it simple to query their account, regardless of whether they're at Chase, BofA or other?</p>
  
  <p>Thanks very much,</p>
  
  <p>Michael</p>