Angular 9: Fork join with array of objects

Question

I am trying to make multiple API request to an endpoint in which the values are iterated over an array

So I used rxjs forkJoin to achieve this

//array to keep obeserbles
propOb: Observable<any>[];

input.property.forEach(property => {
         console.log('prop', property);
         const t = this.baseApiService.sendRequest(
          'json',
          {
           method: 'post',
           endPoint: 'v1/property/new',
           data: {
              property_id: uuid.v4(),
              ics_ref_no: '122',
              property_type: property.type,
              property_role: property.role,
              property_dec: property.description,
              
           }
         });
         this.propOb.push(t);
         });

    forkJoin(this.propOb).subscribe((data) => {
           console.log(data);
    });

While running i am getting the following error cannot read property 'push' of undefined from this line this.propOb.push(t);

Also, I'm not sure my approach is correct or not

ForestG · Accepted Answer · 2020-09-16 08:48:49Z

3

You need to initialize the array. It's has 'undefined' type until you do so.

change

propOb: Observable<any>[];

to

propOb: Observable<any>[] = [];

answered Sep 16, 2020 at 8:48

ForestG

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