Angular 处理来自不';t在canActivate()中返回布尔值
我正在尝试创建一个Angular 处理来自不';t在canActivate()中返回布尔值,angular,observable,canactivate,Angular,Observable,Canactivate,我正在尝试创建一个canActivate()函数,该函数将: return false; this.router.navigateByUrl('/login'); 当状态代码从一个可观察的状态代码中读取时,即当HttpErrorResponse被触发时 ============================================== 这是我的服务: currentUser(token): Observable<any> { const url = `${thi
canActivate()
函数,该函数将:
return false;
this.router.navigateByUrl('/login');
当状态代码从一个可观察的状态代码中读取时,即当HttpErrorResponse
被触发时
==============================================
这是我的服务:
currentUser(token): Observable<any> {
const url = `${this.BACKEND_URL}/status`;
const httpOptions = {
headers: new HttpHeaders({
'Content-Type': 'application/json',
'Authorization': `Bearer ${token}`
})
};
return this.http.post(url, {'token': token}, httpOptions);
}
我目前有一个代码,当状态代码为401
时,该代码失败,错误:Uncaught(承诺中):HttpErrorResponse
:
@Injectable()
export class EnsureAuthenticated implements CanActivate {
constructor(private auth: AuthService, private router: Router) {}
canActivate(): Observable<boolean> {
console.log('AUTH');
return this.auth.currentUser(localStorage.getItem('token')).pipe(map(suc => {
if (suc.status = 'success') {
return true;
} else {
this.router.navigateByUrl('/login');
return false;
}
}));
}
}
@Injectable()
导出类确保重新验证的工具可以激活{
构造函数(私有身份验证:身份验证服务,私有路由器:路由器){}
canActivate():可观察的{
console.log('AUTH');
返回此.auth.currentUser(localStorage.getItem('token')).pipe(map(suc=>{
如果(suc.status='success'){
返回true;
}否则{
this.router.navigateByUrl('/login');
返回false;
}
}));
}
}
我使用的是angular 7.0.4。答案是使用
catchError
捕捉错误:
import { Injectable } from '@angular/core';
import { CanActivate, Router } from '@angular/router';
import { AuthService } from './auth.service';
import {Observable, of} from 'rxjs';
import {catchError, map} from 'rxjs/operators';
import {HttpErrorResponse} from '@angular/common/http';
@Injectable()
export class EnsureAuthenticated implements CanActivate {
constructor(private auth: AuthService, private router: Router) {}
canActivate(): Observable<boolean> {
return this.auth.currentUser(localStorage.getItem('token')).pipe(map(suc => {
if (suc.status = 'success') {
return true;
} else {
this.router.navigateByUrl('/login');
return false;
}
}), catchError((err: HttpErrorResponse) => {
this.router.navigateByUrl('/login');
return of(false);
}));
}
}
从'@angular/core'导入{Injectable};
从'@angular/Router'导入{CanActivate,Router};
从“/auth.service”导入{AuthService};
从'rxjs'导入{可观察的};
从“rxjs/operators”导入{catchError,map};
从“@angular/common/http”导入{HttpErrorResponse};
@可注射()
导出类确保重新验证的工具可以激活{
构造函数(私有身份验证:身份验证服务,私有路由器:路由器){}
canActivate():可观察的{
返回此.auth.currentUser(localStorage.getItem('token')).pipe(map(suc=>{
如果(suc.status='success'){
返回true;
}否则{
this.router.navigateByUrl('/login');
返回false;
}
}),catchError((err:HttpErrorResponse)=>{
this.router.navigateByUrl('/login');
归还(假);
}));
}
}
这对我很有效
不要返回不起任何作用的false,而是直接返回UrlTree以导航到您想要去的地方
canActivate(
route: ActivatedRouteSnapshot,
state: RouterStateSnapshot
):
| Observable<boolean | UrlTree>
| Promise<boolean | UrlTree>
| boolean
| UrlTree {
return this.accountClientService.isLoggedIn().pipe(
map((responseData: ResponseService<boolean>) => {
if (responseData.model) {
return responseData.model;
}
return this.router.createUrlTree(['/signin']);
}),
catchError((err) => {
return of(this.router.createUrlTree(['/signin']));
})
);
}
canActivate(
路由:ActivatedRouteSnapshot,
状态:RouterStateSnapshot
):
|可观察
|允诺
|布尔值
|UrlTree{
返回此.accountClientService.isLoggedIn()管道(
映射((响应数据:响应服务)=>{
if(响应数据模型){
返回响应数据模型;
}
返回此.router.createUrlTree(['/sign']);
}),
catchError((err)=>{
返回(this.router.createUrlTree(['/sign']);
})
);
}
没有,对不起,我删除了标签。
canActivate(
route: ActivatedRouteSnapshot,
state: RouterStateSnapshot
):
| Observable<boolean | UrlTree>
| Promise<boolean | UrlTree>
| boolean
| UrlTree {
return this.accountClientService.isLoggedIn().pipe(
map((responseData: ResponseService<boolean>) => {
if (responseData.model) {
return responseData.model;
}
return this.router.createUrlTree(['/signin']);
}),
catchError((err) => {
return of(this.router.createUrlTree(['/signin']));
})
);
}