title: Encoding a dictionary in URL Encoding
body: <p>I'm trying to attach a payment source in Stripe. To do so, I want to directly pass payment info. This is documented <a href="https://stripe.com/docs/api/curl#customer_create_bank_account" rel="nofollow noreferrer">here</a>. If you read description of source parameter, you'll understand my requirement.I want to attach dictionary of params to source param.</p>
  
  <p>My question is how should I attach the params like <code>object</code>, <code>account_number</code> etc. which are supposed to be a dictionary under <code>source</code> param</p>
  
  <p>PS: I'm trying to hit this api using Postman</p>