Multi tool use

angular 2 http get request getting called twice, when the size of data is large

I m trying to fetch history data for one month using angular http get request. I m using angular 5,server is in node js and db is mongodb.
On first click on button it hits the server and console is printed on server. After 2 mins again server consoles as ui hits server, but there is no call made by the ui to server. After 1 min, sent successful response is showed by server, but ui console displays like error-"connection refused". i tried to resolve it using share from observable. But it did not work
This is my service.

getReports(params): Observable<number>{
let headers = new Headers({ 'Content-Type': 'application/json' });
let options = new RequestOptions({ headers: headers });
return this.http.get(url, options)
.map((res: Response) => res.json())
.catch(this.handleError)}


1 Answer
1

try like below

return this.http.get(url, options)
.timeout(3000, new Error('timeout exceeded'))
.map((res: Response) => res.json())
.subscribe(
data => this.data = data,
error => console.debug('ERROR', error),
() => console.log('END')
);
.catch(this.handleError)}


using timeout it is possible. 3000 means 3 secs or 3000 ms

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