@PostMapping("/auth/saveOrUpdate")
    public Mono<String> saveOrUpdate(@RequestBody final AppAuthData appAuthData) {
        if (CollectionUtils.isEmpty(subscribers)) {
            return Mono.just(Constants.SUCCESS);
        }
        LOG.info("saveOrUpdate apache shenyu local app auth");
        subscribers.forEach(authDataSubscriber -> authDataSubscriber.onSubscribe(appAuthData));
        return Mono.just(Constants.SUCCESS);
    }
Save or update app auth data.

@param appAuthData the app auth data
@return the mono
shenyu-web/src/main/java/org/apache/shenyu/web/controller/LocalAppAuthController.java