CODEWITHSUNDEEP
angularhttppostgetrxjs
mslavs
mslavs

Reputation: 33

Updating object for angular http post method after getting object

I want to update an object I first receive from a get request, then update, then put the object back in post. However, I am setting the data to an empty object ( {} )

var dataObject = {};
this.persistanceDataService.getData()
          .subscribe(data => {
            dataObject = data.contents;
            dataObject.ussInput = this.input_box;
            dataObject.ussData = this.data;
          })

this.persistanceDataService.setData(dataObject)
          .subscribe((res: any) => { });

Upvotes: 1

Views: 175

Answers (1)

siva636
siva636

Reputation: 16441

First get the first observable, process it using map, then apply switchMap with the processed data to get the second observable. Finally subscribe:

 this.persistanceDataService.getData().pipe(
        map(data =>return{
        // process your data here
        }),

        switchMap(processedData =>{
        this.persistanceDataService.setData(processedData)
        })
        ).subscribe(x =>{})

Upvotes: 2

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