Facets aren't working with setSetJson

[Fohlen]

Howdy! Unfortunately facet's are not quite working as documented.

When I try the following code:

const wellFormedFixtures = [ 
    { name: 'reprehenderit',
    description: 'Cum tempore excepturi qui numquam illo.',
    location: { name: 'libero', position: [Object] },
    entity: { name: 'maiores', contact: '813 Hayes Ports Bradleyberg' },
    source: { name: 'et', url: 'http://clay.name', aggregator: 0 },
    'location|date': new Date('2018-12-11T21:21:32.455Z'),
    url: 'http://jovanny.org',
    images: [ 'http://lorempixel.com/640/480' ] } 
]

const transaction = dgraphClient.newTxn()
let mutation = new dgraph.Mutation()
mutation.setSetJson(wellFormedFixtures)

The below query:

{
  some_events(func: allofterms(name@., "omnis")) {
    uid,
    name@.,
    location {
      uid,
     name@.,
     position {
     	expand(_all_) 
     }
    } @facets(date: date),
    entity {
     name@.
    },
    source {
    	name@.
    }
  }
}

will not include the date element. However if I manually mutate on ratel via

{
  set {
    <0x29a> <location> <0x29c> (date=2018-11-22T12:10:04.106Z) .
  }
}

it does work fine.
Can you please explain how this is intended to be used, and clarify whether this is a bug or just weirdly documented.

[yashafromrussia]

I had a similar problem. It worked when I put the facet inside of the predicate value:

const wellFormedFixtures = [ 
    { name: 'reprehenderit',
    description: 'Cum tempore excepturi qui numquam illo.',
    location: { name: 'libero', position: [Object], 'location|date': new Date('2018-12-11T21:21:32.455Z') },
    entity: { name: 'maiores', contact: '813 Hayes Ports Bradleyberg' },
    source: { name: 'et', url: 'http://clay.name', aggregator: 0 },
    url: 'http://jovanny.org',
    images: [ 'http://lorempixel.com/640/480' ] } 
]

[MichelDiz]

Yeah, the Right usage is as gorjuspixels shows.