diff --git a/multi/multi__global_filters.html b/multi/multi__global_filters.html
index 496a9121..61e6956d 100644
--- a/multi/multi__global_filters.html
+++ b/multi/multi__global_filters.html
@@ -9,7 +9,22 @@
uri: lb://service
predicates:
- Path=/service/**
-
The Netty Routing Filter runs if the url located in the ServerWebExchangeUtils.GATEWAY_REQUEST_URL_ATTR exchange attribute has a http or https scheme. It uses the Netty HttpClient to make the downstream proxy request. The response is put in the ServerWebExchangeUtils.CLIENT_RESPONSE_ATTR exchange attribute for use in a later filter. (There is an experimental WebClientHttpRoutingFilter that performs the same function, but does not require netty)
6.5 Netty Write Response Filter
The NettyWriteResponseFilter runs if there is a Netty HttpClientResponse in the ServerWebExchangeUtils.CLIENT_RESPONSE_ATTR exchange attribute. It is run after all other filters have completed and writes the proxy response back to the gateway client response. (There is an experimental WebClientWriteResponseFilter that performs the same function, but does not require netty)
6.6 RouteToRequestUrl Filter
The RouteToRequestUrlFilter runs if there is a Route object in the ServerWebExchangeUtils.GATEWAY_ROUTE_ATTR exchange attribute. It creates a new URI, based off of the request URI, but updated with the URI attribute of the Route object. The new URI is placed in the ServerWebExchangeUtils.GATEWAY_REQUEST_URL_ATTR exchange attribute`.
If the URI has a scheme prefix, such as lb:ws://serviceid, the lb scheme is stripped from the URI and placed in the ServerWebExchangeUtils.GATEWAY_SCHEME_PREFIX_ATTR for use later in the filter chain.
6.7 Websocket Routing Filter
The Websocket Routing Filter runs if the url located in the ServerWebExchangeUtils.GATEWAY_REQUEST_URL_ATTR exchange attribute has a ws or wss scheme. It uses the Spring Web Socket infrastructure to forward the Websocket request downstream.
Websockets may be load-balanced by prefixing the URI with lb, such as lb:ws://serviceid.
6.8 Making An Exchange As Routed
After the Gateway has routed a ServerWebExchange it will mark that exchange as "routed" by adding gatewayAlreadyRouted
+
The Netty Routing Filter runs if the url located in the ServerWebExchangeUtils.GATEWAY_REQUEST_URL_ATTR exchange attribute has a http or https scheme. It uses the Netty HttpClient to make the downstream proxy request. The response is put in the ServerWebExchangeUtils.CLIENT_RESPONSE_ATTR exchange attribute for use in a later filter. (There is an experimental WebClientHttpRoutingFilter that performs the same function, but does not require netty)
6.5 Netty Write Response Filter
The NettyWriteResponseFilter runs if there is a Netty HttpClientResponse in the ServerWebExchangeUtils.CLIENT_RESPONSE_ATTR exchange attribute. It is run after all other filters have completed and writes the proxy response back to the gateway client response. (There is an experimental WebClientWriteResponseFilter that performs the same function, but does not require netty)
6.6 RouteToRequestUrl Filter
The RouteToRequestUrlFilter runs if there is a Route object in the ServerWebExchangeUtils.GATEWAY_ROUTE_ATTR exchange attribute. It creates a new URI, based off of the request URI, but updated with the URI attribute of the Route object. The new URI is placed in the ServerWebExchangeUtils.GATEWAY_REQUEST_URL_ATTR exchange attribute`.
If the URI has a scheme prefix, such as lb:ws://serviceid, the lb scheme is stripped from the URI and placed in the ServerWebExchangeUtils.GATEWAY_SCHEME_PREFIX_ATTR for use later in the filter chain.
6.7 Websocket Routing Filter
The Websocket Routing Filter runs if the url located in the ServerWebExchangeUtils.GATEWAY_REQUEST_URL_ATTR exchange attribute has a ws or wss scheme. It uses the Spring Web Socket infrastructure to forward the Websocket request downstream.
Websockets may be load-balanced by prefixing the URI with lb, such as lb:ws://serviceid.
![[Note]](images/note.png) | Note |
|---|
If you are using SockJS as a fallback over normal http, you should configure a normal HTTP route as well as the Websocket Route. |
application.yml.
+
spring:
+ cloud:
+ gateway:
+ routes:
+
+ - id: websocket_sockjs_route
+ uri: http://localhost:3001
+ predicates:
+ - Path=/websocket/info/**
+
+ - id: websocket_route
+ uri: ws://localhost:3001
+ predicates:
+ - Path=/websocket/**
+
6.8 Making An Exchange As Routed
After the Gateway has routed a ServerWebExchange it will mark that exchange as "routed" by adding gatewayAlreadyRouted
to the exchange attributes. Once a request has been marked as routed, other routing filters will not route the request again,
essentially skipping the filter. There are convenience methods that you can use to mark an exchange as routed
or check if an exchange has already been routed.
ServerWebExchangeUtils.isAlreadyRouted takes a ServerWebExchange object and checks if it has been "routed"ServerWebExchangeUtils.setAlreadyRouted takes a ServerWebExchange object and marks it as "routed"