how to make a post request with json data in angular code example
Example: angular http error handling
import { Injectable } from '@angular/core';
import {
HttpInterceptor, HttpRequest,
HttpHandler, HttpEvent, HttpErrorResponse
} from '@angular/common/http';
import { Observable, throwError } from 'rxjs';
import { catchError } from 'rxjs/operators';
@Injectable({
providedIn: 'root'
})
export class InterceptorService implements HttpInterceptor{
constructor() { }
handleError(error: HttpErrorResponse){
console.log("lalalalalalalala");
return throwError(error);
}
intercept(req: HttpRequest<any>, next: HttpHandler):
Observable<HttpEvent<any>>{
return next.handle(req)
.pipe(
catchError(this.handleError)
)
};
}