Tips for transforming a JSON array retrieved from a REST API into a usable object

Upon receiving a message from my backend, it appears as follows:

[
    [
        {
            "id": 1,
            "date": "2018-12-31"
        },
        {
            "id": 12,
            "standard": null,
            "capacity": 7,
            "description": null,
        }
    ],
    [
        {
            "id": 26,
            "date": "2018-12-08"
        },
        {
            "id": 11,
            "standard": null,
            "capacity": 7,
            "description": null,
        }
    ]
]

To convert this response into a list of 2 objects, I have created the following class:

export class Response {

  id: string;
  date: string;
  standard: string;
  capacity: number;
  description: string;
}

In my method, where I am calling a service, I have tried various approaches, but even using backendData.forEach does not work - Angular does not recognize backendData as an array.

getData(){
    this.service.getData().subscribe(backendData=>{
      //how to convert  backendData to an array of Response[]?
    })
  }

I would greatly appreciate any assistance as I have been struggling with this issue for some time now.

Answer №1

Perhaps this information could be beneficial.

fetchData(){
    this.service.getData().subscribe(backendData=> {
        //Is there a way to transform backendData into an array of Response[]?
        return backendData.map(array => Object.assign(array[0], array[1]))
    })
}

I am uncertain if it is possible to convert this array into the Response type, as the id is in string format whereas the response contains numbers. Additionally, the response includes nullable fields for both description and standard.

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