ng http-client-interceptor

最新推荐文章于 2024-02-19 05:00:00 发布

yangchengguo

最新推荐文章于 2024-02-19 05:00:00 发布

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分类专栏： ng

本文链接：https://blog.youkuaiyun.com/yangchengguo/article/details/97244237

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本文介绍了一个使用Angular创建HTTP请求拦截器的实例，通过新建httpconfig.interceptor.ts文件，实现对请求头的自定义设置，如添加Content-Type和Address字段，并在响应中进行事件处理。

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新建httpconfig.interceptor.ts文件

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

import {Observable, throwError} from 'rxjs';
import 'rxjs/add/operator/do';
import {Router} from '@angular/router';
import {StorageService} from '../../service/storage.service';
import {map, catchError} from 'rxjs/operators';
import {
    HttpInterceptor,
    HttpRequest,
    HttpResponse,
    HttpHandler,
    HttpEvent,
    HttpErrorResponse
} from '@angular/common/http';


@Injectable({
    providedIn: 'root'
})

export class ApiInterceptor implements HttpInterceptor {
    constructor(
        // private msg: NzMessageService,
        private router: Router,
        // private session: SessionStorageService
        private storageService: StorageService
    ) {

    }

    intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
        // 获取当前语言
        const currentLanguage = this.storageService.getLang();
        let authReq;
        authReq = req.clone({
            headers: req.headers.set('Content-Type', 'application/json')
                .set('Address', this.storageService.getToken())
        });


        return next.handle(authReq).pipe(
            map((event: HttpEvent<any>) => {
                if (event instanceof HttpResponse) {
                    // console.log('event--->>>', event);
                }
                return event;
            }));
    }

}