Tukukkk

I am getting below error when I try to hit post service from Angular 5

Failed to load resource: the server responded with a status of 403
(Forbidden) Access to XMLHttpRequest at
'https://xxxx/xxxx/services/exportVarianceHome' from origin
'http://localhost:4200' has been blocked by CORS policy:

Response to preflight request doesn't pass access control check: No
'Access-Control-Allow-Origin' header is present on the requested
resource.

Below is my interceptor configuration in Angular 5

import { Injectable, NgModule} from '@angular/core';

import { Observable } from 'rxjs/Observable';

import { HttpEvent, HttpInterceptor, HttpHandler, HttpRequest, HttpResponse} from '@angular/common/http';

import { HTTP_INTERCEPTORS } from '@angular/common/http';

import 'rxjs/add/operator/do';

@Injectable()

export class HttpsRequestInterceptor implements HttpInterceptor {

  intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {

    const dupReq = req.clone({ headers: req.headers

    .set('Access-Control-Allow-Origin','*')

    .set('Content-Type', 'application/json')

    .set('Authorization', 'Basic XXXXXXXXXXXXXXXXXXXXXX')

    .set('Access-Control-Allow-Credentials','true') });

    return next.handle(dupReq);

  }

};

@NgModule({

  providers: [

    { provide: HTTP_INTERCEPTORS, useClass: HttpsRequestInterceptor, multi: true }

  ]

})

And Angular Post Call

import { HttpClient} from '@angular/common/http';

constructor(private httpClient:HttpClient){

         getLookupDetails();

}



  getLookupDetails(){

    this.httpClient.get(this.servicsUrl).subscribe(

          (data:any) => {

            console.log("JSON Response " + JSON.stringify(data));

          }

        )

     }

And the Cross origin Setup at server side (SpringBoot)

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.boot.builder.SpringApplicationBuilder;

import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;

import org.springframework.context.annotation.Bean;

import org.springframework.web.bind.annotation.CrossOrigin;

import org.springframework.web.servlet.config.annotation.CorsRegistry;

import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;



@SpringBootApplication(scanBasePackages = {"com.controller.gtm"})

public class BrokerValidationApplication extends SpringBootServletInitializer implements WebMvcConfigurer  {



    @Override

    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {

        return application.sources(BrokerValidationApplication.class);

    }



    public static void main(String args) {

        SpringApplication.run(BrokerValidationApplication.class, args);

    }



    @Override

    public void addCorsMappings(CorsRegistry registry) {

        System.out.println(">=== Inside Cors Orgin Mapping addCorsMappings ===>");

        registry.addMapping("/services/**")

          .allowedOrigins("*")

          .allowedMethods("POST", "GET",  "PUT", "OPTIONS", "DELETE")

          .allowedHeaders("*")

          .allowCredentials(true)

          .maxAge(4800);

    }



}