Angular如何在http调用出错的情况下继续执行方法

Question

我的http后端调用可能有异常，如果它失败，我的方法不会继续执行其余的指令(//做其他事情)。如何在出现异常情况下继续执行?

public updateStatus(status: string): void {
this.userApiService.user.updateStatus(status, this.user.objectKey).subscribe((response) => {
//do something else
);
}

Answer 1

import { finalize } from 'rxjs/operators';
public updateStatus(status: string): void 
{
this.userApiService.user.updateStatus(status,this.user.objectKey)
.pipe(finalize(() => 
{
//do something even after exception
}), 
.subscribe((response) => 
{
}, error => console.error(error));
}

Answer 2

添加catchError算子。

import { catchError } from 'rxjs/operators';
public updateStatus(status: string): void {
this.userApiService.user.updateStatus(status,this.user.objectKey
.pipe(
catchError(e => /* handle error and return a handable error response */),
).subscribe((response) => {
//do something else
);
}