英文:
Where to execute code that comes after retry in rxjs Angular 7
问题
我只回答代码部分的翻译，请看下面的内容：
// 我正在开发一个HTTP拦截器，如果刷新令牌API在重试后失败，我想要注销用户。
return this.authService.refreshToken().pipe(
switchMap((token: any) => {
console.log(token);
this.isRefreshing = false;
this.refreshTokenSubject.next(token.accessToken);
return next.handle(this.addToken(req, token.accessToken));
}),
retry(3), // 如果刷新令牌() API返回错误，将尝试3次。
catchError(error => {
// 如果刷新令牌() API在3次重试后仍然未返回成功响应，我想要注销。
this.authService.Logout();
return throwError(error);
})
);
希望这有助于您理解代码的翻译。
英文:
I'm working on an HTTP interceptor & I want to Logout my user if the refreshToken API fails after the retries.
return this.authService.refreshToken().pipe(
switchMap((token: any) => {
console.log(token);
this.isRefreshing = false;
this.refreshTokenSubject.next(token.accessToken);
return next.handle(this.addToken(req, token.accessToken));
}),
retry(3), //Tries the refreshToken() API if it returns with an error.
catchError(error => {
//If the refreshToken() API never returns a successful response, I want to Logout.
this.authService.Logout();
return throwError(error);
}
);
My question is, am I doing the catchError correctly? I only want it to happen after it retries 3 times and still fails, but I'm worried that it will catchError before retrying.
答案1
得分: 0
是的，它应该仅在retry之后工作。此外，您可以将其放在catchError而不是订阅错误回调中。
这里是您用例的模拟：https://stackblitz.com/edit/typescript-kbfkq7
第一个订阅失败了多次，但在retry点之下 - 因此它会解析。
另一个在上面 - 因此会触发catchError和错误回调。
英文:
Yes, it should work only after retry. Also, you can put it not to catchError but to subscribe error callback.
Here is an simulation of your use-case: https://stackblitz.com/edit/typescript-kbfkq7
First subscription fails several times but is below retry point - so it resolves.
Another one is above - so catchError and error callback are emitted.
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