我有CustomHttp类,我用它来为我的get请求添加标头：
import { Injectable } from '@angular/core';
import { Observable } from 'rxjs/Rx';
import { RequestOptionsArgs,RequestOptions,ConnectionBackend,Http,Request,Response,Headers } from "@angular/http";
@Injectable()
export class CustomHttp extends Http {
headers: Headers = new Headers({ 'Something': 'Something' });
options1: RequestOptions = new RequestOptions({ headers: this.headers });
constructor(backend: ConnectionBackend,defaultOptions: RequestOptions) {
super(backend,defaultOptions);
}
get(url: string,options?: RequestOptionsArgs) {
console.log('Custom get...');
return super.get(url,this.options1).catch(err => {
console.log(err);
if (err.status === 404) {
console.log('404 error');
return Observable.throw(err);
}
});
}
}
在RC5中,我将它添加到我的AppModule提供程序中,如下所示：
provide (Http,{
useFactory: (
backend: XHRBackend,defaultOptions: RequestOptions) =>
new CustomHttp(backend,defaultOptions),deps: [XHRBackend,RequestOptions]
})
但是,在RC6中,@ angular / core的提供已被弃用,我在向AppModule提供程序添加CustomHttp类时遇到问题.有谁知道如何做到这一点？
语法有所改变,除此之外它应该仍然有效：
原文链接：https://www.f2er.com/angularjs/143354.html{ provide: Http,useFactory: (
backend: XHRBackend,defaultOptions: RequestOptions) =>
new CustomHttp(backend,RequestOptions]
}
