GET cards <--- List of all cards. Res: [ {...card fields...} , ... ]
GET cards/:code <--- List of all cards with that code (might be more than one: ex. Ruler/J-Ruler). Res: [ {...card fields...} , ... ]
GET cards/:code/faq <--- List all FAQs for the specified card. Res: [ { question: "", answer: "" } , ... ]
POST cards/:code/faq <--- Ask a question about the specified card. Body: { question: "" }

GET faq <--- List of all the FAQs <--- Res: [ {question: "...", answer: "...", cards:[code, ...]} ]
GET faq/:faqid <--- Get a single FAQ <--- Res: {question: "...", answer: "...", cards:[code, ...]}

GET decks <--- List of all public and visible decks. Res: [ {_id: "", title: "", attributes: ["Light", ... ], userId: "", userName: "" }, ... ]
GET decks/users/:userId <--- List all public and visible deck of the specified user. Res: [ {_id: "", title: "", attributes: ["Light", ... ], userId: "", userName: "" }, ... ]
GET decks/my <--- List all deck of the API user. Res: [ {_id: "", title: "", attributes: ["Light", ... ]}, ... ]
GET decks/:deckId/cards <--- List all cards in a deck. Body: [{code: "", qty: 1}, ... ]
POST decks <--- Creates a new deck. Body: [{code: "", qty: 1}, ... ]
POST decks/:deckId/cards <--- Add cards to a deck. Body: [{code: "", qty: 1}, ... ]
PUT decks/:deckId <--- Replace the selected deck with the input one. Body: [{code: "", qty: 1}, ... ]

GET binder/cards <--- List of all binder cards of the API user. Res: [{qty: 1, ...card fields...}]
GET binder/cards/:code <--- Number of cards with that code in the binder. Res: {qty: 2, ...card fields...}
POST binder/cards/ <--- Add the specified card to the binder. Body: [{code: "", qty: 1}]
DELETE binder/cards/ <--- Remove the specified card qty into the binder. Body: [{code: "", qty: 2}]
POST binder/cards/:code <--- Delete all cards with the specified code into the binder.

GET users <--- List of all application users. Res: [ {userId: "", userName: "", sex: "M", photoUrl:""} , ... ]
POST users <--- Creates a user. Body: {userName: "", sex: "M", photoUrl:""}
PUT users/:userId <--- Creates a user with the specified userId. Body: {userName: "", sex: "M", photoUrl:""}
PUT users <--- Updates a user. Body: {userId: "", userName: "", sex: "M", photoUrl:""}

GET friends <--- List of all friends of the API user
POST friends/ <--- Add friends to a user. Body: [{friendId: ""}, ...] 

201 Created

Location: ... (ex. http://localhost:5000/decks/:deckId)

200 OK

Location: ... (ex. http://localhost:5000/decks/:deckId)

200 OK
404 Document not found

500 Internal Server Error