I want to display the ngx-wheel using api but I'm having trouble displaying the data. Here my Service :
import { Injectable } from '@angular/core';
import { HttpClient, HttpHeaders } from '@angular/common/http';
@Injectable({
providedIn: 'root'
})
export class RestServices {
restEndpoint:string = 'https://gorest.co.in/public/v2/users'
constructor(
private httpClient: HttpClient
) { }
async getServiceId() {
const httpOptions = {
headers: new HttpHeaders({
'Content-Type': 'application/json',
})
}
return this.httpClient.get<any[]>(this.restEndpoint, httpOptions)
}
Here my Component :
private subscription: Subscription | undefined;
items: any = []
ngOnInit(): void {
this.subscription = this._restService.getServices()
.subscribe((res:any)=>{
let item = res
this.items = item.map((v:any) => ({
text: v.name,
id: v.id,
textFillStyle: "white",
textFontSize: "16"
}));
})
}
ngOnDestroy(): void {
this.subscription?.unsubscribe()
}
Here for html
<ngx-wheel #wheel [width]='350' [height]='350' [spinDuration]='8' [disableSpinOnClick]='true' [items]='items'
[innerRadius]='10' [spinAmount]='10' [textOrientation]='textOrientation' [textAlignment]='textAlignment'
pointerStrokeColor='black' pointerFillColor='white' [idToLandOn]='idToLandOn' (onSpinStart)='before()'
(onSpinComplete)='after()'>
I hope to find the answer here. Thank you
First, you don't need await, async and ,toPromise()... remove them and simply return
return this.httpClient.get<any[]>(this.restEndpoint, httpOptions);
inside your component you should use your constructor only for simple data initialization: if you have to consume a rest api it is a better approach to move that piece of code inside the ngOnInit method:
items: any[] = []
constructor(private restService: RestService){}//dependency injection
ngOnInit(): void {
this.restService.getServiceId().subscribe(response => {
console.log('response success: ', response);
this.items = response; //this may change a little based on your api
console.log('items: ', this.items);
}, errorLog => {
console.log('response error: ', errorLog)
});
}
The above solution is valid, you can enrich it by adding a *ngIf="isLoaded" on your html element and set to true the isLoaded INSIDE subscribe method. but if you prefer you can do the following in the component.ts
items$: Observable<any> = EMPTY;
constructor(private restService: RestService){}//dependency injection
ngOnInit(): void {
this.items$ = this.restService.getServiceId();
}
then, in your html it would change to the following:
<ngx-wheel #wheel *ngIf="items$ | async as items" [width]='350' [height]='350' [spinDuration]='8' [disableSpinOnClick]='true' [items]='items'
[innerRadius]='10' [spinAmount]='10' [textOrientation]='textOrientation' [textAlignment]='textAlignment'
pointerStrokeColor='black' pointerFillColor='white' [idToLandOn]='idToLandOn' (onSpinStart)='before()'
(onSpinComplete)='after()'>