@GetMapping("/meta/delete")
    public Mono<String> clean(@RequestParam("id") final String id,
                              @RequestParam("rpcType") final String rpcType,
                              @RequestParam("path") final String path) {
        if (CollectionUtils.isEmpty(subscribers)) {
            return Mono.just(Constants.SUCCESS);
        }
        LOG.info("delete apache shenyu local meta data");
        MetaData metaData = MetaData.builder().id(id).rpcType(rpcType).path(path).build();
        subscribers.forEach(metaDataSubscriber -> metaDataSubscriber.unSubscribe(metaData));
        return Mono.just(Constants.SUCCESS);
    }
Clean mono.

@param id the rpc id
@param rpcType the rpc type
@param path the path
@return the mono
shenyu-web/src/main/java/org/apache/shenyu/web/controller/LocalMetadataController.java