GET /cameras - Gets all cameras
POST /cameras - Adds a camera
PATCH /cameras/:id - Edits a camera, based on id in URL
DELETE /cameras/:id - Deletes a camera, based on id in URL
GET /cart - Gets everything in the cart
PATCH /cart/:id/add - Add camera with that id to the cart
PATCH /cart/:id/remove - Remove camera with that id from the cart