[falcor] creating a new book in a world

[joshdmiller]

Summary

Create a falcor route to create a new book within a world.

See also #8, #9.

Authentication & Authorization

The current user must have write or owner permissions for the world in which the book is to be created.

Spec

Route (call): worldsById[id: string].books.push

Function Signature

function (  world_id : string, title : string ) : JSONGraphEnvelope

MongoDB

Create a new document for this world with the following parameters:

{
  _id : string, // randomly generated
  title: string,
  created_at: Date.now(),
  updated_at: Date.now(),
}

Neo4j

Merge (:Book)-[:IN]->(:World) with the following properties:

const Book = {
  _id: bookId,
};

const World = {
  _id: worldId,
};

const OF = {
  archived: false,
  created_at: Date.now(),
  creator: userId, // user performing the operation
};

Return Paths

Return the path to the new ref in worldsById[key: string].books per #9.

Changelog

• 201609191010PST(joshdmiller): fixed inconsistency with [falcor] idempotent book operations #9 to change relationship from OF to IN and name to title.