CODEWITHSUNDEEP
angularobservable
AngularM
AngularM

Reputation: 16618

Angular: How to use result of `.subscribe()` in consequent Observable

Angular2: I want to use the result of .subscribe() in a consequent observable.

This is in order to use the id from the parent subscribe in the nested subscribe.

I've tried using .switchMap() first, but this doesn't seem to work.

This is my attempt:

this.serviceA.getOrg()
    .switchMap(org => this.serviceB.getOrgType(org.id))
    .subscribe(type => {
        console.log(type);
});

Upvotes: 4

Views: 1825

Answers (3)

alex kucksdorf
alex kucksdorf

Reputation: 2633

Try using .flatMap() instead:

this.serviceA.getOrg()
    .flatMap((org) => this.serviceB.getOrgType(org.id))
    .subscribe((type) => {
        console.log(type);
});

Upvotes: 2

Chandru
Chandru

Reputation: 11184

try like this :

this.serviceA.getOrg()
    .flatMap((org) => {
        console.log('org', org);
        return this.serviceB.getOrgType(org.id)
    })
    .subscribe((type) => {
        console.log('type', type);
    });

Upvotes: 3

Faly
Faly

Reputation: 13346

Try flatMap:

 this.serviceA.getOrg()
    .flatMap(org => this.serviceB.getOrgType(org.id))
    .subscribe(type=> {
      console.log(type);
    });

Upvotes: 4

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