带同步的Realm + React Native最佳实践用户设置

Question

I am experimenting with integrating my app with Realm.io.. as it seems like a pretty awesome platform to use. I am trying to login + register users correctly through something like:

Realm.Sync.User.register('http://realm-ip:9080', this.state.email, this.state.password, (error, user) => {
  if (!error) {
    var realm = new Realm({
      sync: {
        user: user,
        url: 'realm://realm-ip:9080/~/userRealm',
      },
      schema: [PersonSchema, ConversationSchema]
    });
  }
  else {
    console.log(error);
  }
})

This seems to work pretty well. I have similar code for loggin a user into realm. Though, when looking at the Realm JS (React Native) examples here: https://github.com/realm/realm-js/blob/master/examples/ReactExample/components/realm.js they export the realm object with something like:

 export default new Realm({schema: [Todo, TodoList]});

Now, this seems pretty neat, and makes the use of realm flawlessly in the rest of the app. However, it doesn't make use of the sync object with user details in it, as provided when using Realm.Sync.User.* Also I can't figure out the best practice way to achieve this modular design, but still have users login/register via the fist example I showed with Realm.Sync.User.register()

The example app here https://github.com/realm/realm-js/blob/master/examples/ReactExample doesn't give solid examples of registering users.

My questions are:

• What's the best way to keep things neat and setup users correctly?
• Is there a better way to access an initialised realm object that's been setup with sync: { user: user, url: 'realm url'} ?
• Is there a better example to learn how to do this from?

If my question doesn't make sense, please let me know and I will try to elaborate... as I realise it might not be easy to understand.

Answer 1

Well, it kind of depends on your situation and there are a number of approaches that could work. I guess you could do something like this:

// realm-container.js

import Realm from 'realm';

export default {
  realm: null,
  initialize: (email, password) => {
    Realm.Sync.User.register('http://realm-ip:9080', email, password, (error, user) => {
      if (!error) {
        this.realm = new Realm({
          sync: {
            user: user,
            url: 'realm://realm-ip:9080/~/userRealm',
          },
          schema: [PersonSchema, ConversationSchema]
        });
      }
      else {
        console.log(error);
      }
    })
  }
};

Then, if you include that as import realmContainer from './realm-container';

you can then call realmContainer.initialize(email, password) and refer to the realm like this: realmContainer.realm