Hi Celerity,
If you want synchronous results, you need to use native JS, as Angular
doesn't provide that.
However, you can easily string multiple async calls together.
might look like this:
import { Injectable } from '@angular/core';
import { Http, Headers, Response } from '@angular/http';
@Injectable()
export class ServiceNameService {
constructor(private http:Http) { }
getResult() {
return this.firststep()
.map(this.secondstep)
.map(this.thirthstep)
.subscribe(data => {
/* all data is available here */
});
}
firststep() {
return this.http.get('url')
.map((response: Response) => response.json())
.map(data => ({firstep: data}))
;
}
secondstep(data) {
/* use data to prepare call */
return this.http.get('url')
.map((response: Response) => response.json())
.map((r) => data.secondStep = r);
}
thirthstep(data) {
/* use data to prepare call */
return this.http.get('url')
.map((response: Response) => response.json())
.map((r) => data.thirthStep = r);
}
}
Hope this helps you a bit,
Regards
Sander
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