title: How to place an order using Magento2 API?
body: <p>I am looking for the complete "happy path" to place an order using Magento2's REST API. So far these are all the steps I have followed. What else am I missing?</p>
  
  <ol>
  <li><p>Create a user: <code>[POST] /rest/V1/customers</code></p></li>
  <li><p>Log In (create a token): <code>[POST] /rest/V1/integration/customer/token</code></p></li>
  <li><p>Get Product Categories for navigation: <code>[GET] /rest/V1/categories</code></p></li>
  <li><p>Get Products:</p>
  
  <p>4.1 Get Category Products: <code>[GET] /rest/V1/categories/{category_id}/products</code></p>
  
  <p>4.2 Or search for a product: <code>[GET] /rest/V1/products</code></p></li>
  <li><p>Create a cart: <code>[POST] /rest/V1/carts/mine</code></p></li>
  <li><p>Add items to cart: <code>[POST] /rest/V1/carts/mine/items</code></p></li>
  <li><p>Get cart payment information <code>[GET] /rest/V1/carts/mine/payment-information</code></p></li>
  <li><p>...</p></li>
  </ol>
  
  <p>What other things do I have to do to place the order?</p>