Apollo writeFragment not updating data

Question

In react-apollo 2.0.1 I have a graphql type that looks like this:

type PagedThing {
  data: [Thing]
  total: Int
}

When doing the following writeFragment

  client.writeFragment({
    id,
    fragment: gql`
      fragment my_thing on Thing {
        status
      }
    `,
    data: {
      status
    }
  })

The cache is not update and the new data is not shown on the UI. Is there something else that need to be done?

PS: To be safe I used fragment matching

Edit 1:

I receive an error of:

Cannot match fragment because __typename property is missing: {"status":"online"}

So I changed the code to:

client.writeFragment({
    id,
    fragment: gql`
      fragment my_thing on Thing {
        status
      }
    `,
    data: {
      __typename: 'Thing',
      status
    }
  })

And no error is thrown but the updated still do not happen

Answer 1

Turns out I needed to not only add the __typename as the ID needed to be the one resolved by default (Explained here)

So I needed to do the following in order to make it work:

client.writeFragment({
  id: `Thing:${id}`,
  fragment: gql`
    fragment my_thing on Thing {
      status
    }
  `,
  data: {
    __typename: 'Thing',
    status
  }
})

Answer 2

it appears that the framework has been extended to provide a method called 'identify' to avoid this problem (in case they change implementation later)

cache.modify({
  id: cache.identify(myPost),
             ^
  fields(fieldValue, details) {
    return details.INVALIDATE;
  },
});

https://www.apollographql.com/docs/react/caching/cache-interaction/#example-invalidating-fields-within-a-cached-object