Angular2 RC5默认http头

Question

可以在RC4中扩展Http或BaseRequestOptions，并向所有http请求添加默认标头。像这里How to set default HTTP header in Angular2?如何在RC5中做呢？

在http.d.ts第163行找到export declare function httpFactory(xhrBackend: XHRBackend, requestOptions: RequestOptions): Http;。也许它能帮上忙。

Answer 1

您仍然可以像在RC4中一样使用CustomRequestOptions：

@NgModule({
  imports: [...],
  providers: [provide(RequestOptions, { useClass: CustomRequestOptions}) ],
  declarations: [AppComponent],
  bootstrap: [AppComponent]
})


import { Headers, RequestOptions, RequestOptionsArgs } from '@angular/http';

export class CustomRequestOptions extends RequestOptions {
    merge(options?: RequestOptionsArgs): RequestOptions {
            let headers = new Headers({ 'Content-Type': 'application/json' });
            options.headers = headers;
            var result = super.merge(options);
            result.merge = this.merge;
            return result;
        }
        return super.merge(options);
    }
}