App-constructor.js

constructor(props, context) {
    super(props, context); // don't forget this, no constructor without calling super() first!
    this.state = {
      actingUser: null, // we'll set this to the acting user later
      photos: [], // array of existing photos we GET from the Database
      saving: [], // unique IDs of photo's that are currently being saved
      camera: 'front', // camera orientation ("front" or "rear")
      offset: 0, // the offset for our database GET calls
      canLoadMore: true, // are there more images to load from the databse?
      currentAt: 0, // current server time, we'll set this on GET and POST calls, because we can't trust the client time
    };
    
    // convenience functions we'll use to interact with the databse
    // all Bebo databases are automatically namespaced for us, so we'll just call this one "photos" for our use
    this.Db = {
      Photos: {
        GET: (count = 50, offset = 0) => props.bebo.Db.get('photos', {count: count, offset}), // returns a promise
        POST: (photo) => props.bebo.Db.save('photos', photo), // returns a promise
      },
    };
  }