Angular6 catch timeout error

问题

with this code I can catch all the exceptions, except the when the server is anavailable. Do you have any idea about how should be handle ?

return this.http.post<User>(this._appSetting.ebit.base_url "rested/login/login", JSON.stringify(params), httpOptions)
                  .pipe(catchError(this.handleError));

回答1:

You can use the timeout() operator to catch a timeout. It's measured in milliseconds so 10000 would be 10 seconds.

return this.http.post<User>(this._appSetting.ebit.base_url "rested/login/login", JSON.stringify(params), httpOptions)
              .pipe(timeout(10000), catchError(this.handleError));

来源：https://stackoverflow.com/questions/51405688/angular6-catch-timeout-error