Thanks sander I did not configure CORS very well on the server. Now I have
fixed it and its returning response but the response is not showing on the
page I had to inspect the code and found out it returned object in 4
places. I think I will have to serialize it to the object I have on the
client. I dont know how to go about that. I have "Category" class on the
server I created "Category" with the same fields in my angular like this
export class Category {
id: number;
name: string;
}
I called the server like this
getCategories (): Observable<Category[]> {
return
this.http.get<Category[]>('http://localhost:56757/api/product/categories')
.pipe(
tap(categories` => this.log(`fetched categories`)),
catchError(this.handleError('getCategories', []))
);
}
HTML :
<ul>
<li *ngFor="let cat of categories">
<span class="badge">{{cat.id}}</span> {{cat.name}}
</li>
</ul>
On Monday, November 20, 2017 at 1:47:03 PM UTC+1, olabanji tajudeen wrote:
>
> Hi everyone I am new to angular. My first project trying to get data from
> an API throws this error "Http failure response for (unknown url): 0
> Unknown Error". Please I want to know what could have been causing this
> error. Thanks in advance for your response.
>
>
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