How to get data when parse Node.js

Question

When parsing I get this answer:

{ 
    data: { 
        type: 'match',
        id: 'ae825686-8a74-4363-a1d1-402d5a4207d5',
        attributes: { 
            createdAt: '2018-11-20T17:06:52Z',
            titleId: 'bluehole-pubg',
            shardId: 'pc-ru',
            tags: null,
            seasonState: 'progress',
            duration: 1823,
            stats: null,
            gameMode: 'squad-fpp'
        },
    },  
    included: [ 
        { 
            type: 'participant',
            id: '0b1b8f78-bb3e-4c0a-9955-9fdf8e33e5b4',
            attributes: [Object] 
        },
        { 
            type: 'participant',
            id: '85e74b88-125b-4529-8c3f-fd76bd43b9aa',
            attributes: [Object] 
        },
        { 
            type: 'roster',
            id: '6db70dce-b056-4bed-8cc4-6521b83bea50',
            attributes: [Object],
            relationships: [Object] 
        },
        { 
            type: 'roster',
            id: 'a35db9ae-e559-4474-b922-784e3221f484',
            attributes: [Object],
            relationships: [Object] 
        }
    ]
}

I need to get data with inculded type:'roster', and object contents attributes, relationships. How can I do it? I tried extracting array of data console.log(included [0]); I get data from type:'participant'. Tried so console.log (included [{type: 'roster', relationship}]); In response, I get the message undefined Please tell me how to get the necessary data.

Answer 1

I would create two arrays and push individually, like this:

let json = { 
    data: { 
        type: 'match',
        id: 'ae825686-8a74-4363-a1d1-402d5a4207d5',
        attributes: { 
            createdAt: '2018-11-20T17:06:52Z',
            titleId: 'bluehole-pubg',
            shardId: 'pc-ru',
            tags: null,
            seasonState: 'progress',
            duration: 1823,
            stats: null,
            gameMode: 'squad-fpp'
        },
    },  
    included: [ 
        { 
            type: 'participant',
            id: '0b1b8f78-bb3e-4c0a-9955-9fdf8e33e5b4',
            attributes: [Object] 
        },
        { 
            type: 'participant',
            id: '85e74b88-125b-4529-8c3f-fd76bd43b9aa',
            attributes: [Object] 
        },
        { 
            type: 'roster',
            id: '6db70dce-b056-4bed-8cc4-6521b83bea50',
            attributes: [Object],
            relationships: [Object] 
        },
        { 
            type: 'roster',
            id: 'a35db9ae-e559-4474-b922-784e3221f484',
            attributes: [Object],
            relationships: [Object] 
        }
    ]
}
let attributes = [];
let relationships = [];

let dataIneed = json.included.forEach(element => {
   if(element.type === 'roster'){
    attributes.push(element.attributes);
    relationships.push(element.relationships);
  }
})

Answer 2

Using Array.prototype.filter()

const response = { 
    data: { 
        type: 'match',
        id: 'ae825686-8a74-4363-a1d1-402d5a4207d5',
        attributes: { 
            createdAt: '2018-11-20T17:06:52Z',
            titleId: 'bluehole-pubg',
            shardId: 'pc-ru',
            tags: null,
            seasonState: 'progress',
            duration: 1823,
            stats: null,
            gameMode: 'squad-fpp'
        },
    },  
    included: [ 
        { 
            type: 'participant',
            id: '0b1b8f78-bb3e-4c0a-9955-9fdf8e33e5b4',
            attributes: [Object] 
        },
        { 
            type: 'participant',
            id: '85e74b88-125b-4529-8c3f-fd76bd43b9aa',
            attributes: [Object] 
        },
        { 
            type: 'roster',
            id: '6db70dce-b056-4bed-8cc4-6521b83bea50',
            attributes: [Object],
            relationships: [Object] 
        },
        { 
            type: 'roster',
            id: 'a35db9ae-e559-4474-b922-784e3221f484',
            attributes: [Object],
            relationships: [Object] 
        }
    ]
}

const arrayWithRoster = response.included.filter(item => item.type === 'roster');

console.log(arrayWithRoster);