You need to subscribe. Something like this (untested)
'''
getUtenti() : Utente[]{
return this.http.get(this.API).subscribe((data) => {
let output = data['utenti'];
for (var i = 0; i < output.length; i++) {
let utente = <Utente> output[i];
this.listaUtenti.push(utente);
}
return this.listaUtenti;
});
'''
'''
getUtenti() {
this.serviceUtente.getUtenti().subscribe((result) => {
this.listaUtenti = result;
console.log("Risultato utenti" + JSON.stringify(this.listaUtenti));
});
}
'''
On Sat, May 4, 2019 at 11:55 AM <graydiamon...@gmail.com> wrote:
> Thanks Kalyan for you answer,
> In the end I used the async wait. Is it a good solution?
>
>
> Il giorno sabato 4 maggio 2019 06:12:55 UTC+2, Kalyan T ha scritto:
>>
>> Return http from service and subscribe it in component
>>
>> On Fri, 3 May, 2019, 8:53 AM , <graydi...@gmail.com> wrote:
>>
>>> Hi everyone,
>>> I have recently entered the Angular world and I am running into a
>>> problem that I really can't solve.
>>>
>>> I created a service called UsersService where inside I invoke a rest
>>> service that returns the list of registered users.
>>> getUtenti() : Utente[]{
>>> let data = this.http.get(this.API).subscribe((data) => {
>>> let output = data['utenti'];
>>> for (var i = 0; i < output.length; i++){
>>> let utente = <Utente> output[i];
>>> this.listaUtenti.push(utente);
>>> }
>>> });
>>> I call this method from a component.ts
>>> getUtenti(){
>>> this.listaUtenti = this.serviceUtente.getUtenti();
>>> console.log("Risultato utenti" +JSON.stringify(this.listaUtenti));
>>>
>>> The getUtents does not wait for the "this.serviceUtente.getUsenti ()" to
>>> end and consequently the User list will always be empty.
>>> In fact if I put a timeout to my getUsers it works.
>>>
>>> setTimeout(() => {
>>> console.log("Risultato utenti" +JSON.stringify(this.listaUtenti));
>>> }, 300);
>>>
>>> I was wondering, is there a way to solve this problem or do I have to
>>> play with event emitters? Thanks a lot to everyone
>>>
>>>
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