Application Load Balancer API, REST: HttpRouter.Update

Written by

Updated at December 17, 2024

HTTP request
Path parameters
Body parameters
VirtualHost
Route
HttpRoute
HttpRouteMatch
StringMatch
HttpRouteAction
RateLimit
Limit
RedirectAction
DirectResponseAction
Payload
GrpcRoute
GrpcRouteMatch
GrpcRouteAction
GrpcStatusResponseAction
RouteOptions
HeaderModification
RBAC
Principals
Principal
HeaderMatcher
Response
UpdateHttpRouterMetadata
Status
HttpRouter
VirtualHost
Route
HttpRoute
HttpRouteMatch
StringMatch
HttpRouteAction
RateLimit
Limit
RedirectAction
DirectResponseAction
Payload
GrpcRoute
GrpcRouteMatch
GrpcRouteAction
GrpcStatusResponseAction
RouteOptions
HeaderModification
RBAC
Principals
Principal
HeaderMatcher

Updates the specified HTTP router.

HTTP request

PATCH https://alb.api.cloud.yandex.net/apploadbalancer/v1/httpRouters/{httpRouterId}

Path parameters

Field

Description

httpRouterId

string

Required field. ID of the HTTP router to update.

To get the HTTP router ID, make a HttpRouterService.List request.

Body parameters

{
  "updateMask": "object",
  "name": "string",
  "description": "string",
  "labels": "object",
  "virtualHosts": [
    {
      "name": "string",
      "authority": [
        "string"
      ],
      "routes": [
        {
          "name": "string",
          // Includes only one of the fields `http`, `grpc`
          "http": {
            "match": {
              "httpMethod": [
                "string"
              ],
              "path": {
                // Includes only one of the fields `exactMatch`, `prefixMatch`, `regexMatch`
                "exactMatch": "string",
                "prefixMatch": "string",
                "regexMatch": "string"
                // end of the list of possible fields
              }
            },
            // Includes only one of the fields `route`, `redirect`, `directResponse`
            "route": {
              "backendGroupId": "string",
              "timeout": "string",
              "idleTimeout": "string",
              // Includes only one of the fields `hostRewrite`, `autoHostRewrite`
              "hostRewrite": "string",
              "autoHostRewrite": "boolean",
              // end of the list of possible fields
              "prefixRewrite": "string",
              "upgradeTypes": [
                "string"
              ],
              "rateLimit": {
                "allRequests": {
                  // Includes only one of the fields `perSecond`, `perMinute`
                  "perSecond": "string",
                  "perMinute": "string"
                  // end of the list of possible fields
                },
                "requestsPerIp": {
                  // Includes only one of the fields `perSecond`, `perMinute`
                  "perSecond": "string",
                  "perMinute": "string"
                  // end of the list of possible fields
                }
              }
            },
            "redirect": {
              "replaceScheme": "string",
              "replaceHost": "string",
              "replacePort": "string",
              // Includes only one of the fields `replacePath`, `replacePrefix`
              "replacePath": "string",
              "replacePrefix": "string",
              // end of the list of possible fields
              "removeQuery": "boolean",
              "responseCode": "string"
            },
            "directResponse": {
              "status": "string",
              "body": {
                // Includes only one of the fields `text`
                "text": "string"
                // end of the list of possible fields
              }
            }
            // end of the list of possible fields
          },
          "grpc": {
            "match": {
              "fqmn": {
                // Includes only one of the fields `exactMatch`, `prefixMatch`, `regexMatch`
                "exactMatch": "string",
                "prefixMatch": "string",
                "regexMatch": "string"
                // end of the list of possible fields
              }
            },
            // Includes only one of the fields `route`, `statusResponse`
            "route": {
              "backendGroupId": "string",
              "maxTimeout": "string",
              "idleTimeout": "string",
              // Includes only one of the fields `hostRewrite`, `autoHostRewrite`
              "hostRewrite": "string",
              "autoHostRewrite": "boolean",
              // end of the list of possible fields
              "rateLimit": {
                "allRequests": {
                  // Includes only one of the fields `perSecond`, `perMinute`
                  "perSecond": "string",
                  "perMinute": "string"
                  // end of the list of possible fields
                },
                "requestsPerIp": {
                  // Includes only one of the fields `perSecond`, `perMinute`
                  "perSecond": "string",
                  "perMinute": "string"
                  // end of the list of possible fields
                }
              }
            },
            "statusResponse": {
              "status": "string"
            }
            // end of the list of possible fields
          },
          // end of the list of possible fields
          "routeOptions": {
            "modifyRequestHeaders": [
              {
                "name": "string",
                // Includes only one of the fields `append`, `replace`, `remove`, `rename`
                "append": "string",
                "replace": "string",
                "remove": "boolean",
                "rename": "string"
                // end of the list of possible fields
              }
            ],
            "modifyResponseHeaders": [
              {
                "name": "string",
                // Includes only one of the fields `append`, `replace`, `remove`, `rename`
                "append": "string",
                "replace": "string",
                "remove": "boolean",
                "rename": "string"
                // end of the list of possible fields
              }
            ],
            "rbac": {
              "action": "string",
              "principals": [
                {
                  "andPrincipals": [
                    {
                      // Includes only one of the fields `header`, `remoteIp`, `any`
                      "header": {
                        "name": "string",
                        "value": {
                          // Includes only one of the fields `exactMatch`, `prefixMatch`, `regexMatch`
                          "exactMatch": "string",
                          "prefixMatch": "string",
                          "regexMatch": "string"
                          // end of the list of possible fields
                        }
                      },
                      "remoteIp": "string",
                      "any": "boolean"
                      // end of the list of possible fields
                    }
                  ]
                }
              ]
            },
            "securityProfileId": "string"
          }
        }
      ],
      "modifyRequestHeaders": [
        {
          "name": "string",
          // Includes only one of the fields `append`, `replace`, `remove`, `rename`
          "append": "string",
          "replace": "string",
          "remove": "boolean",
          "rename": "string"
          // end of the list of possible fields
        }
      ],
      "modifyResponseHeaders": [
        {
          "name": "string",
          // Includes only one of the fields `append`, `replace`, `remove`, `rename`
          "append": "string",
          "replace": "string",
          "remove": "boolean",
          "rename": "string"
          // end of the list of possible fields
        }
      ],
      "routeOptions": {
        "modifyRequestHeaders": [
          {
            "name": "string",
            // Includes only one of the fields `append`, `replace`, `remove`, `rename`
            "append": "string",
            "replace": "string",
            "remove": "boolean",
            "rename": "string"
            // end of the list of possible fields
          }
        ],
        "modifyResponseHeaders": [
          {
            "name": "string",
            // Includes only one of the fields `append`, `replace`, `remove`, `rename`
            "append": "string",
            "replace": "string",
            "remove": "boolean",
            "rename": "string"
            // end of the list of possible fields
          }
        ],
        "rbac": {
          "action": "string",
          "principals": [
            {
              "andPrincipals": [
                {
                  // Includes only one of the fields `header`, `remoteIp`, `any`
                  "header": {
                    "name": "string",
                    "value": {
                      // Includes only one of the fields `exactMatch`, `prefixMatch`, `regexMatch`
                      "exactMatch": "string",
                      "prefixMatch": "string",
                      "regexMatch": "string"
                      // end of the list of possible fields
                    }
                  },
                  "remoteIp": "string",
                  "any": "boolean"
                  // end of the list of possible fields
                }
              ]
            }
          ]
        },
        "securityProfileId": "string"
      },
      "rateLimit": {
        "allRequests": {
          // Includes only one of the fields `perSecond`, `perMinute`
          "perSecond": "string",
          "perMinute": "string"
          // end of the list of possible fields
        },
        "requestsPerIp": {
          // Includes only one of the fields `perSecond`, `perMinute`
          "perSecond": "string",
          "perMinute": "string"
          // end of the list of possible fields
        }
      }
    }
  ],
  "routeOptions": {
    "modifyRequestHeaders": [
      {
        "name": "string",
        // Includes only one of the fields `append`, `replace`, `remove`, `rename`
        "append": "string",
        "replace": "string",
        "remove": "boolean",
        "rename": "string"
        // end of the list of possible fields
      }
    ],
    "modifyResponseHeaders": [
      {
        "name": "string",
        // Includes only one of the fields `append`, `replace`, `remove`, `rename`
        "append": "string",
        "replace": "string",
        "remove": "boolean",
        "rename": "string"
        // end of the list of possible fields
      }
    ],
    "rbac": {
      "action": "string",
      "principals": [
        {
          "andPrincipals": [
            {
              // Includes only one of the fields `header`, `remoteIp`, `any`
              "header": {
                "name": "string",
                "value": {
                  // Includes only one of the fields `exactMatch`, `prefixMatch`, `regexMatch`
                  "exactMatch": "string",
                  "prefixMatch": "string",
                  "regexMatch": "string"
                  // end of the list of possible fields
                }
              },
              "remoteIp": "string",
              "any": "boolean"
              // end of the list of possible fields
            }
          ]
        }
      ]
    },
    "securityProfileId": "string"
  }
}

Field	Description
updateMask	object (field-mask) A comma-separated names off ALL fields to be updated. Only the specified fields will be changed. The others will be left untouched. If the field is specified in `updateMask` and no value for that field was sent in the request, the field's value will be reset to the default. The default value for most fields is null or 0. If `updateMask` is not sent in the request, all fields' values will be updated. Fields specified in the request will be updated to provided values. The rest of the fields will be reset to the default.
name	string New name for the HTTP router. The name must be unique within the folder.
description	string New description of the HTTP router.
labels	object (map<string, string>) HTTP router labels as `key:value` pairs. For details about the concept, see documentation. Existing set of labels is completely replaced by the provided set, so if you just want to add or remove a label: Get the current set of labels with a HttpRouterService.Get request. Add or remove a label in this set. Send the new set in this field.
virtualHosts[]	VirtualHost New virtual hosts that combine routes inside the router. For details about the concept, see documentation. Only one virtual host with no authority (default match) can be specified. Existing list of virtual hosts is completely replaced by the specified list, so if you just want to add or remove a virtual host, make a VirtualHostService.Create request or a VirtualHostService.Delete request.
routeOptions	RouteOptions New route options for the HTTP router.

VirtualHost

A virtual host resource.
For details about the concept, see documentation.

Field	Description
name	string Required field. Name of the virtual host. The name is unique within the HTTP router.
authority[]	string List of domains that are attributed to the virtual host. The host is selected to process the request received by the load balancer if the domain specified in the HTTP/1.1 `Host` header or the HTTP/2 `:authority` pseudo-header matches a domain specified in the host. A wildcard asterisk character (``) matches 0 or more characters. If not specified, all domains are attributed to the host, which is the same as specifying a `` value. An HTTP router must not contain more than one virtual host to which all domains are attributed.
routes[]	Route Routes of the virtual host. A route contains a set of conditions (predicates) that are used by the load balancer to select the route for the request and an action on the request. For details about the concept, see documentation. The order of routes matters: the first route whose predicate matches the request is selected. The most specific routes should be at the top of the list, so that they are not overridden. For example, if the first HTTP route is configured, via HttpRoute.match, to match paths prefixed with just `/`, other routes are never matched.
modifyRequestHeaders[]	HeaderModification Deprecated, use route_options.modify_request_headers.
modifyResponseHeaders[]	HeaderModification Deprecated, use route_options.modify_response_headers.
routeOptions	RouteOptions
rateLimit	RateLimit RateLimit is a rate limit configuration applied for a whole virtual host.

Route

A route resource.
For details about the concept, see documentation.

Field	Description
name	string Required field. Name of the route.
http	HttpRoute HTTP route configuration. Includes only one of the fields `http`, `grpc`. Route configuration.
grpc	GrpcRoute gRPC route configuration. Includes only one of the fields `http`, `grpc`. Route configuration.
routeOptions	RouteOptions

HttpRoute

An HTTP route configuration resource.

Field	Description
match	HttpRouteMatch Condition (predicate) used to select the route.
route	HttpRouteAction Forwards the request to a backend group for processing as configured. Includes only one of the fields `route`, `redirect`, `directResponse`. Action performed on the request if the route is selected.
redirect	RedirectAction Redirects the request as configured. Includes only one of the fields `route`, `redirect`, `directResponse`. Action performed on the request if the route is selected.
directResponse	DirectResponseAction Instructs the load balancer to respond directly as configured. Includes only one of the fields `route`, `redirect`, `directResponse`. Action performed on the request if the route is selected.

HttpRouteMatch

An HTTP route condition (predicate) resource.

Field

Description

httpMethod[]

string

HTTP method specified in the request.

path

StringMatch

Match settings for the path specified in the request.

If not specified, the route matches all paths.

StringMatch

A string matcher resource.

Field	Description
exactMatch	string Exact match string. Includes only one of the fields `exactMatch`, `prefixMatch`, `regexMatch`. Match string for either exact or prefix match.
prefixMatch	string Prefix match string. Includes only one of the fields `exactMatch`, `prefixMatch`, `regexMatch`. Match string for either exact or prefix match.
regexMatch	string Regular expression match string. Includes only one of the fields `exactMatch`, `prefixMatch`, `regexMatch`. Match string for either exact or prefix match.

HttpRouteAction

An HTTP route action resource.

Field	Description
backendGroupId	string Required field. Backend group to forward requests to. Stream (TCP) backend groups are not supported.
timeout	string (duration) Overall timeout for an HTTP connection between a load balancer node an a backend from the backend group: the maximum time the connection is kept alive for, regardless of whether data is transferred over it. If a connection times out, the load balancer responds to the client with a `504 Gateway Timeout` status code. Default value: `60`.
idleTimeout	string (duration) Idle timeout for an HTTP connection between a load balancer node an a backend from the backend group: the maximum time the connection is allowed to be idle, i.e. without any data transferred over it. Specifying meaningful values for both `timeout` and `idle_timeout` is useful for implementing server-push mechanisms such as long polling, server-sent events (`EventSource` interface) etc. If a connection times out, the load balancer responds to the client with a `504 Gateway Timeout` status code. If not specified, no idle timeout is used, and an alive connection may be idle for any duration (see `timeout`).
hostRewrite	string Host replacement. Includes only one of the fields `hostRewrite`, `autoHostRewrite`. Value rewrite settings for HTTP/1.1 `Host` headers and HTTP/2 `:authority` pseudo-headers. If not specified, the host is not changed.
autoHostRewrite	boolean Automatically replaces the host with that of the target. Includes only one of the fields `hostRewrite`, `autoHostRewrite`. Value rewrite settings for HTTP/1.1 `Host` headers and HTTP/2 `:authority` pseudo-headers. If not specified, the host is not changed.
prefixRewrite	string Replacement for the path prefix matched by StringMatch. For instance, if StringMatch.prefixMatch value is `/foo` and `prefix_rewrite` value is `/bar`, a request with `/foobaz` path is forwarded with `/barbaz` path. For StringMatch.exactMatch, the whole path is replaced. If not specified, the path is not changed.
upgradeTypes[]	string Supported values for HTTP `Upgrade` header. E.g. `websocket`.
rateLimit	RateLimit RateLimit is a rate limit configuration applied for route.

RateLimit

RateLimit is a set of settings for global rate limiting.

Field

Description

allRequests

Limit

AllRequests is a rate limit configuration applied to all incoming requests.

requestsPerIp

Limit

RequestsPerIp is a rate limit configuration applied separately for each set of requests
grouped by client IP address.

Limit

Limit is a rate limit value settings.

Field

Description

perSecond

string (int64)

PerSecond is a limit value specified with per second time unit.

Includes only one of the fields perSecond, perMinute.

perMinute

string (int64)

PerMinute is a limit value specified with per minute time unit.

Includes only one of the fields perSecond, perMinute.

RedirectAction

A redirect action resource.

Field	Description
replaceScheme	string URI scheme replacement. If `http` or `https` scheme is to be replaced and `80` or `443` port is specified in the original URI, the port is also removed. If not specified, the original scheme and port are used.
replaceHost	string URI host replacement. If not specified, the original host is used.
replacePort	string (int64) URI host replacement. If not specified, the original host is used.
replacePath	string Replacement for the whole path. Includes only one of the fields `replacePath`, `replacePrefix`. URI path replacement. If not specified, the original path is used.
replacePrefix	string Replacement for the path prefix matched by StringMatch. For instance, if StringMatch.prefixMatch value is `/foo` and `replace_prefix` value is `/bar`, a request with `https://example.com/foobaz` URI is redirected to `https://example.com/barbaz`. For StringMatch.exactMatch, the whole path is replaced. Includes only one of the fields `replacePath`, `replacePrefix`. URI path replacement. If not specified, the original path is used.
removeQuery	boolean Removes URI query.
responseCode	enum (RedirectResponseCode) HTTP status code to use in redirect responses. `MOVED_PERMANENTLY`: `301 Moved Permanently` status code. `FOUND`: `302 Found` status code. `SEE_OTHER`: `303 See Other` status code. `TEMPORARY_REDIRECT`: `307 Temporary Redirect` status code. `PERMANENT_REDIRECT`: `308 Permanent Redirect` status code.

DirectResponseAction

A direct response action resource.

Field

Description

status

string (int64)

HTTP status code to use in responses.

body

Payload

Response body.

Payload

A health check payload resource.

Field

Description

text

string

Payload text.

Includes only one of the fields text.

Payload.

GrpcRoute

A gRPC route configuration resource.

Field	Description
match	GrpcRouteMatch Condition (predicate) used to select the route.
route	GrpcRouteAction Forwards the request to a backend group for processing as configured. Includes only one of the fields `route`, `statusResponse`. Action performed on the request if the route is selected.
statusResponse	GrpcStatusResponseAction Instructs the load balancer to respond directly with a specified status. Includes only one of the fields `route`, `statusResponse`. Action performed on the request if the route is selected.

GrpcRouteMatch

A gRPC route condition (predicate) resource.

Field

Description

fqmn

StringMatch

Match settings for gRPC service method called in the request.

A match string must be a fully qualified method name, e.g. foo.bar.v1.BazService/Get, or a prefix of such.

If not specified, the route matches all methods.

GrpcRouteAction

A gRPC route action resource.

Field	Description
backendGroupId	string Required field. Backend group to forward requests to.
maxTimeout	string (duration) Overall timeout for an underlying HTTP connection between a load balancer node an a backend from the backend group: the maximum time the connection is kept alive for, regardless of whether data is transferred over it. If a client specifies a lower timeout in HTTP `grpc-timeout` header, the `max_timeout` value is ignored. If a connection times out, the load balancer responds to the client with an `UNAVAILABLE` status code. Default value: `60`.
idleTimeout	string (duration) Idle timeout for an underlying HTTP connection between a load balancer node an a backend from the backend group: the maximum time the connection is allowed to be idle, i.e. without any data transferred over it. Specifying meaningful values for both `maxTimeout` and `idle_timeout` is useful for implementing server-push mechanisms such as long polling, server-sent events etc. If a connection times out, the load balancer responds to the client with an `UNAVAILABLE` status code. If not specified, no idle timeout is used, and an alive connection may be idle for any duration (see `maxTimeout`).
hostRewrite	string Host replacement. Includes only one of the fields `hostRewrite`, `autoHostRewrite`. Value rewrite settings for HTTP/1.1 `Host` headers and HTTP/2 `:authority` pseudo-headers. If not specified, the host is not changed.
autoHostRewrite	boolean Automatically replaces the host with that of the target. Includes only one of the fields `hostRewrite`, `autoHostRewrite`. Value rewrite settings for HTTP/1.1 `Host` headers and HTTP/2 `:authority` pseudo-headers. If not specified, the host is not changed.
rateLimit	RateLimit RateLimit is a rate limit configuration applied for route.

GrpcStatusResponseAction

A gRPC status response action resource.

Field

Description

status

enum (Status)

gRPC status code to use in responses.

OK: OK (0) status code.
INVALID_ARGUMENT: INVALID_ARGUMENT (3) status code.
NOT_FOUND: NOT_FOUND (5) status code.
PERMISSION_DENIED: PERMISSION_DENIED (7) status code.
UNAUTHENTICATED: UNAUTHENTICATED (16) status code.
UNIMPLEMENTED: UNIMPLEMENTED (12) status code.
INTERNAL: INTERNAL (13) status code.
UNAVAILABLE: UNAVAILABLE (14) status code.

RouteOptions

Field	Description
modifyRequestHeaders[]	HeaderModification Apply the following modifications to the request headers.
modifyResponseHeaders[]	HeaderModification Apply the following modifications to the response headers.
rbac	RBAC
securityProfileId	string Security profile that will take effect to all requests routed via particular virtual host.

HeaderModification

A header modification resource.

Field	Description
name	string Name of the header.
append	string Appends the specified string to the header value. Variables defined for Envoy proxy are supported. Includes only one of the fields `append`, `replace`, `remove`, `rename`. Operation to perform on the header.
replace	string Replaces the value of the header with the specified string. Variables defined for Envoy proxy are supported. Includes only one of the fields `append`, `replace`, `remove`, `rename`. Operation to perform on the header.
remove	boolean Removes the header. Includes only one of the fields `append`, `replace`, `remove`, `rename`. Operation to perform on the header.
rename	string Replaces the name of the header with the specified string. This operation is only supported for ALB Virtual Hosts. Includes only one of the fields `append`, `replace`, `remove`, `rename`. Operation to perform on the header.

Role Based Access Control (RBAC) provides router, virtual host, and route access control for the ALB
service. Requests are allowed or denied based on the action and whether a matching principal is
found. For instance, if the action is ALLOW and a matching principal is found the request should be
allowed.

Field

Description

action

enum (Action)

Required field. The action to take if a principal matches. Every action either allows or denies a request.

ACTION_UNSPECIFIED
ALLOW: Allows the request if and only if there is a principal that matches the request.
DENY: Allows the request if and only if there are no principal that match the request.

principals[]

Principals

Required. A match occurs when at least one matches the request.

Principals

Principals define a group of identities for a request.

Field

Description

andPrincipals[]

Principal

Required. A match occurs when all principals match the request.

Principal

Principal defines an identity for a request.

Field	Description
header	HeaderMatcher A header (or pseudo-header such as :path or :method) of the incoming HTTP request. Includes only one of the fields `header`, `remoteIp`, `any`.
remoteIp	string A CIDR block or IP that describes the request remote/origin address, e.g. `192.0.0.0/24` or`192.0.0.4` . Includes only one of the fields `header`, `remoteIp`, `any`.
any	boolean When any is set, it matches any request. Includes only one of the fields `header`, `remoteIp`, `any`.

HeaderMatcher

Field

Description

name

string

Required field. Specifies the name of the header in the request.

value

StringMatch

Specifies how the header match will be performed to route the request.
In the absence of value a request that has specified header name will match,
regardless of the header's value.

Response

HTTP Code: 200 - OK

{
  "id": "string",
  "description": "string",
  "createdAt": "string",
  "createdBy": "string",
  "modifiedAt": "string",
  "done": "boolean",
  "metadata": {
    "httpRouterId": "string"
  },
  // Includes only one of the fields `error`, `response`
  "error": {
    "code": "integer",
    "message": "string",
    "details": [
      "object"
    ]
  },
  "response": {
    "id": "string",
    "name": "string",
    "description": "string",
    "folderId": "string",
    "labels": "object",
    "virtualHosts": [
      {
        "name": "string",
        "authority": [
          "string"
        ],
        "routes": [
          {
            "name": "string",
            // Includes only one of the fields `http`, `grpc`
            "http": {
              "match": {
                "httpMethod": [
                  "string"
                ],
                "path": {
                  // Includes only one of the fields `exactMatch`, `prefixMatch`, `regexMatch`
                  "exactMatch": "string",
                  "prefixMatch": "string",
                  "regexMatch": "string"
                  // end of the list of possible fields
                }
              },
              // Includes only one of the fields `route`, `redirect`, `directResponse`
              "route": {
                "backendGroupId": "string",
                "timeout": "string",
                "idleTimeout": "string",
                // Includes only one of the fields `hostRewrite`, `autoHostRewrite`
                "hostRewrite": "string",
                "autoHostRewrite": "boolean",
                // end of the list of possible fields
                "prefixRewrite": "string",
                "upgradeTypes": [
                  "string"
                ],
                "rateLimit": {
                  "allRequests": {
                    // Includes only one of the fields `perSecond`, `perMinute`
                    "perSecond": "string",
                    "perMinute": "string"
                    // end of the list of possible fields
                  },
                  "requestsPerIp": {
                    // Includes only one of the fields `perSecond`, `perMinute`
                    "perSecond": "string",
                    "perMinute": "string"
                    // end of the list of possible fields
                  }
                }
              },
              "redirect": {
                "replaceScheme": "string",
                "replaceHost": "string",
                "replacePort": "string",
                // Includes only one of the fields `replacePath`, `replacePrefix`
                "replacePath": "string",
                "replacePrefix": "string",
                // end of the list of possible fields
                "removeQuery": "boolean",
                "responseCode": "string"
              },
              "directResponse": {
                "status": "string",
                "body": {
                  // Includes only one of the fields `text`
                  "text": "string"
                  // end of the list of possible fields
                }
              }
              // end of the list of possible fields
            },
            "grpc": {
              "match": {
                "fqmn": {
                  // Includes only one of the fields `exactMatch`, `prefixMatch`, `regexMatch`
                  "exactMatch": "string",
                  "prefixMatch": "string",
                  "regexMatch": "string"
                  // end of the list of possible fields
                }
              },
              // Includes only one of the fields `route`, `statusResponse`
              "route": {
                "backendGroupId": "string",
                "maxTimeout": "string",
                "idleTimeout": "string",
                // Includes only one of the fields `hostRewrite`, `autoHostRewrite`
                "hostRewrite": "string",
                "autoHostRewrite": "boolean",
                // end of the list of possible fields
                "rateLimit": {
                  "allRequests": {
                    // Includes only one of the fields `perSecond`, `perMinute`
                    "perSecond": "string",
                    "perMinute": "string"
                    // end of the list of possible fields
                  },
                  "requestsPerIp": {
                    // Includes only one of the fields `perSecond`, `perMinute`
                    "perSecond": "string",
                    "perMinute": "string"
                    // end of the list of possible fields
                  }
                }
              },
              "statusResponse": {
                "status": "string"
              }
              // end of the list of possible fields
            },
            // end of the list of possible fields
            "routeOptions": {
              "modifyRequestHeaders": [
                {
                  "name": "string",
                  // Includes only one of the fields `append`, `replace`, `remove`, `rename`
                  "append": "string",
                  "replace": "string",
                  "remove": "boolean",
                  "rename": "string"
                  // end of the list of possible fields
                }
              ],
              "modifyResponseHeaders": [
                {
                  "name": "string",
                  // Includes only one of the fields `append`, `replace`, `remove`, `rename`
                  "append": "string",
                  "replace": "string",
                  "remove": "boolean",
                  "rename": "string"
                  // end of the list of possible fields
                }
              ],
              "rbac": {
                "action": "string",
                "principals": [
                  {
                    "andPrincipals": [
                      {
                        // Includes only one of the fields `header`, `remoteIp`, `any`
                        "header": {
                          "name": "string",
                          "value": {
                            // Includes only one of the fields `exactMatch`, `prefixMatch`, `regexMatch`
                            "exactMatch": "string",
                            "prefixMatch": "string",
                            "regexMatch": "string"
                            // end of the list of possible fields
                          }
                        },
                        "remoteIp": "string",
                        "any": "boolean"
                        // end of the list of possible fields
                      }
                    ]
                  }
                ]
              },
              "securityProfileId": "string"
            }
          }
        ],
        "modifyRequestHeaders": [
          {
            "name": "string",
            // Includes only one of the fields `append`, `replace`, `remove`, `rename`
            "append": "string",
            "replace": "string",
            "remove": "boolean",
            "rename": "string"
            // end of the list of possible fields
          }
        ],
        "modifyResponseHeaders": [
          {
            "name": "string",
            // Includes only one of the fields `append`, `replace`, `remove`, `rename`
            "append": "string",
            "replace": "string",
            "remove": "boolean",
            "rename": "string"
            // end of the list of possible fields
          }
        ],
        "routeOptions": {
          "modifyRequestHeaders": [
            {
              "name": "string",
              // Includes only one of the fields `append`, `replace`, `remove`, `rename`
              "append": "string",
              "replace": "string",
              "remove": "boolean",
              "rename": "string"
              // end of the list of possible fields
            }
          ],
          "modifyResponseHeaders": [
            {
              "name": "string",
              // Includes only one of the fields `append`, `replace`, `remove`, `rename`
              "append": "string",
              "replace": "string",
              "remove": "boolean",
              "rename": "string"
              // end of the list of possible fields
            }
          ],
          "rbac": {
            "action": "string",
            "principals": [
              {
                "andPrincipals": [
                  {
                    // Includes only one of the fields `header`, `remoteIp`, `any`
                    "header": {
                      "name": "string",
                      "value": {
                        // Includes only one of the fields `exactMatch`, `prefixMatch`, `regexMatch`
                        "exactMatch": "string",
                        "prefixMatch": "string",
                        "regexMatch": "string"
                        // end of the list of possible fields
                      }
                    },
                    "remoteIp": "string",
                    "any": "boolean"
                    // end of the list of possible fields
                  }
                ]
              }
            ]
          },
          "securityProfileId": "string"
        },
        "rateLimit": {
          "allRequests": {
            // Includes only one of the fields `perSecond`, `perMinute`
            "perSecond": "string",
            "perMinute": "string"
            // end of the list of possible fields
          },
          "requestsPerIp": {
            // Includes only one of the fields `perSecond`, `perMinute`
            "perSecond": "string",
            "perMinute": "string"
            // end of the list of possible fields
          }
        }
      }
    ],
    "createdAt": "string",
    "routeOptions": {
      "modifyRequestHeaders": [
        {
          "name": "string",
          // Includes only one of the fields `append`, `replace`, `remove`, `rename`
          "append": "string",
          "replace": "string",
          "remove": "boolean",
          "rename": "string"
          // end of the list of possible fields
        }
      ],
      "modifyResponseHeaders": [
        {
          "name": "string",
          // Includes only one of the fields `append`, `replace`, `remove`, `rename`
          "append": "string",
          "replace": "string",
          "remove": "boolean",
          "rename": "string"
          // end of the list of possible fields
        }
      ],
      "rbac": {
        "action": "string",
        "principals": [
          {
            "andPrincipals": [
              {
                // Includes only one of the fields `header`, `remoteIp`, `any`
                "header": {
                  "name": "string",
                  "value": {
                    // Includes only one of the fields `exactMatch`, `prefixMatch`, `regexMatch`
                    "exactMatch": "string",
                    "prefixMatch": "string",
                    "regexMatch": "string"
                    // end of the list of possible fields
                  }
                },
                "remoteIp": "string",
                "any": "boolean"
                // end of the list of possible fields
              }
            ]
          }
        ]
      },
      "securityProfileId": "string"
    }
  }
  // end of the list of possible fields
}

An Operation resource. For more information, see Operation.

Field	Description
id	string ID of the operation.
description	string Description of the operation. 0-256 characters long.
createdAt	string (date-time) Creation timestamp. String in RFC3339 text format. The range of possible values is from `0001-01-01T00:00:00Z` to `9999-12-31T23:59:59.999999999Z`, i.e. from 0 to 9 digits for fractions of a second. To work with values in this field, use the APIs described in the Protocol Buffers reference. In some languages, built-in datetime utilities do not support nanosecond precision (9 digits).
createdBy	string ID of the user or service account who initiated the operation.
modifiedAt	string (date-time) The time when the Operation resource was last modified. String in RFC3339 text format. The range of possible values is from `0001-01-01T00:00:00Z` to `9999-12-31T23:59:59.999999999Z`, i.e. from 0 to 9 digits for fractions of a second. To work with values in this field, use the APIs described in the Protocol Buffers reference. In some languages, built-in datetime utilities do not support nanosecond precision (9 digits).
done	boolean If the value is `false`, it means the operation is still in progress. If `true`, the operation is completed, and either `error` or `response` is available.
metadata	UpdateHttpRouterMetadata Service-specific metadata associated with the operation. It typically contains the ID of the target resource that the operation is performed on. Any method that returns a long-running operation should document the metadata type, if any.
error	Status The error result of the operation in case of failure or cancellation. Includes only one of the fields `error`, `response`. The operation result. If `done == false` and there was no failure detected, neither `error` nor `response` is set. If `done == false` and there was a failure detected, `error` is set. If `done == true`, exactly one of `error` or `response` is set.
response	HttpRouter The normal response of the operation in case of success. If the original method returns no data on success, such as Delete, the response is google.protobuf.Empty. If the original method is the standard Create/Update, the response should be the target resource of the operation. Any method that returns a long-running operation should document the response type, if any. Includes only one of the fields `error`, `response`. The operation result. If `done == false` and there was no failure detected, neither `error` nor `response` is set. If `done == false` and there was a failure detected, `error` is set. If `done == true`, exactly one of `error` or `response` is set.

UpdateHttpRouterMetadata

Field

Description

httpRouterId

string

ID of the HTTP router that is being updated.

Status

The error result of the operation in case of failure or cancellation.

Field	Description
code	integer (int32) Error code. An enum value of google.rpc.Code.
message	string An error message.
details[]	object A list of messages that carry the error details.

HttpRouter

An HTTP router resource.
For details about the concept, see documentation.

Field	Description
id	string ID of the router. Generated at creation time.
name	string Name of the router. The name is unique within the folder.
description	string Description of the router.
folderId	string ID of the folder that the router belongs to.
labels	object (map<string, string>) Router labels as `key:value` pairs. For details about the concept, see documentation.
virtualHosts[]	VirtualHost Virtual hosts that combine routes inside the router. For details about the concept, see documentation. Only one virtual host with no authority (default match) can be specified.
createdAt	string (date-time) Creation timestamp. String in RFC3339 text format. The range of possible values is from `0001-01-01T00:00:00Z` to `9999-12-31T23:59:59.999999999Z`, i.e. from 0 to 9 digits for fractions of a second. To work with values in this field, use the APIs described in the Protocol Buffers reference. In some languages, built-in datetime utilities do not support nanosecond precision (9 digits).
routeOptions	RouteOptions

VirtualHost

A virtual host resource.
For details about the concept, see documentation.

Field	Description
name	string Required field. Name of the virtual host. The name is unique within the HTTP router.
authority[]	string List of domains that are attributed to the virtual host. The host is selected to process the request received by the load balancer if the domain specified in the HTTP/1.1 `Host` header or the HTTP/2 `:authority` pseudo-header matches a domain specified in the host. A wildcard asterisk character (``) matches 0 or more characters. If not specified, all domains are attributed to the host, which is the same as specifying a `` value. An HTTP router must not contain more than one virtual host to which all domains are attributed.
routes[]	Route Routes of the virtual host. A route contains a set of conditions (predicates) that are used by the load balancer to select the route for the request and an action on the request. For details about the concept, see documentation. The order of routes matters: the first route whose predicate matches the request is selected. The most specific routes should be at the top of the list, so that they are not overridden. For example, if the first HTTP route is configured, via HttpRoute.match, to match paths prefixed with just `/`, other routes are never matched.
modifyRequestHeaders[]	HeaderModification Deprecated, use route_options.modify_request_headers.
modifyResponseHeaders[]	HeaderModification Deprecated, use route_options.modify_response_headers.
routeOptions	RouteOptions
rateLimit	RateLimit RateLimit is a rate limit configuration applied for a whole virtual host.

Route

A route resource.
For details about the concept, see documentation.

Field	Description
name	string Required field. Name of the route.
http	HttpRoute HTTP route configuration. Includes only one of the fields `http`, `grpc`. Route configuration.
grpc	GrpcRoute gRPC route configuration. Includes only one of the fields `http`, `grpc`. Route configuration.
routeOptions	RouteOptions

HttpRoute

An HTTP route configuration resource.

Field	Description
match	HttpRouteMatch Condition (predicate) used to select the route.
route	HttpRouteAction Forwards the request to a backend group for processing as configured. Includes only one of the fields `route`, `redirect`, `directResponse`. Action performed on the request if the route is selected.
redirect	RedirectAction Redirects the request as configured. Includes only one of the fields `route`, `redirect`, `directResponse`. Action performed on the request if the route is selected.
directResponse	DirectResponseAction Instructs the load balancer to respond directly as configured. Includes only one of the fields `route`, `redirect`, `directResponse`. Action performed on the request if the route is selected.

HttpRouteMatch

An HTTP route condition (predicate) resource.

Field

Description

httpMethod[]

string

HTTP method specified in the request.

path

StringMatch

Match settings for the path specified in the request.

If not specified, the route matches all paths.

StringMatch

A string matcher resource.

Field	Description
exactMatch	string Exact match string. Includes only one of the fields `exactMatch`, `prefixMatch`, `regexMatch`. Match string for either exact or prefix match.
prefixMatch	string Prefix match string. Includes only one of the fields `exactMatch`, `prefixMatch`, `regexMatch`. Match string for either exact or prefix match.
regexMatch	string Regular expression match string. Includes only one of the fields `exactMatch`, `prefixMatch`, `regexMatch`. Match string for either exact or prefix match.

HttpRouteAction

An HTTP route action resource.

Field	Description
backendGroupId	string Required field. Backend group to forward requests to. Stream (TCP) backend groups are not supported.
timeout	string (duration) Overall timeout for an HTTP connection between a load balancer node an a backend from the backend group: the maximum time the connection is kept alive for, regardless of whether data is transferred over it. If a connection times out, the load balancer responds to the client with a `504 Gateway Timeout` status code. Default value: `60`.
idleTimeout	string (duration) Idle timeout for an HTTP connection between a load balancer node an a backend from the backend group: the maximum time the connection is allowed to be idle, i.e. without any data transferred over it. Specifying meaningful values for both `timeout` and `idle_timeout` is useful for implementing server-push mechanisms such as long polling, server-sent events (`EventSource` interface) etc. If a connection times out, the load balancer responds to the client with a `504 Gateway Timeout` status code. If not specified, no idle timeout is used, and an alive connection may be idle for any duration (see `timeout`).
hostRewrite	string Host replacement. Includes only one of the fields `hostRewrite`, `autoHostRewrite`. Value rewrite settings for HTTP/1.1 `Host` headers and HTTP/2 `:authority` pseudo-headers. If not specified, the host is not changed.
autoHostRewrite	boolean Automatically replaces the host with that of the target. Includes only one of the fields `hostRewrite`, `autoHostRewrite`. Value rewrite settings for HTTP/1.1 `Host` headers and HTTP/2 `:authority` pseudo-headers. If not specified, the host is not changed.
prefixRewrite	string Replacement for the path prefix matched by StringMatch. For instance, if StringMatch.prefixMatch value is `/foo` and `prefix_rewrite` value is `/bar`, a request with `/foobaz` path is forwarded with `/barbaz` path. For StringMatch.exactMatch, the whole path is replaced. If not specified, the path is not changed.
upgradeTypes[]	string Supported values for HTTP `Upgrade` header. E.g. `websocket`.
rateLimit	RateLimit RateLimit is a rate limit configuration applied for route.

RateLimit

RateLimit is a set of settings for global rate limiting.

Field

Description

allRequests

Limit

AllRequests is a rate limit configuration applied to all incoming requests.

requestsPerIp

Limit

RequestsPerIp is a rate limit configuration applied separately for each set of requests
grouped by client IP address.

Limit

Limit is a rate limit value settings.

Field

Description

perSecond

string (int64)

PerSecond is a limit value specified with per second time unit.

Includes only one of the fields perSecond, perMinute.

perMinute

string (int64)

PerMinute is a limit value specified with per minute time unit.

Includes only one of the fields perSecond, perMinute.

RedirectAction

A redirect action resource.

Field	Description
replaceScheme	string URI scheme replacement. If `http` or `https` scheme is to be replaced and `80` or `443` port is specified in the original URI, the port is also removed. If not specified, the original scheme and port are used.
replaceHost	string URI host replacement. If not specified, the original host is used.
replacePort	string (int64) URI host replacement. If not specified, the original host is used.
replacePath	string Replacement for the whole path. Includes only one of the fields `replacePath`, `replacePrefix`. URI path replacement. If not specified, the original path is used.
replacePrefix	string Replacement for the path prefix matched by StringMatch. For instance, if StringMatch.prefixMatch value is `/foo` and `replace_prefix` value is `/bar`, a request with `https://example.com/foobaz` URI is redirected to `https://example.com/barbaz`. For StringMatch.exactMatch, the whole path is replaced. Includes only one of the fields `replacePath`, `replacePrefix`. URI path replacement. If not specified, the original path is used.
removeQuery	boolean Removes URI query.
responseCode	enum (RedirectResponseCode) HTTP status code to use in redirect responses. `MOVED_PERMANENTLY`: `301 Moved Permanently` status code. `FOUND`: `302 Found` status code. `SEE_OTHER`: `303 See Other` status code. `TEMPORARY_REDIRECT`: `307 Temporary Redirect` status code. `PERMANENT_REDIRECT`: `308 Permanent Redirect` status code.

DirectResponseAction

A direct response action resource.

Field

Description

status

string (int64)

HTTP status code to use in responses.

body

Payload

Response body.

Payload

A health check payload resource.

Field

Description

text

string

Payload text.

Includes only one of the fields text.

Payload.

GrpcRoute

A gRPC route configuration resource.

Field	Description
match	GrpcRouteMatch Condition (predicate) used to select the route.
route	GrpcRouteAction Forwards the request to a backend group for processing as configured. Includes only one of the fields `route`, `statusResponse`. Action performed on the request if the route is selected.
statusResponse	GrpcStatusResponseAction Instructs the load balancer to respond directly with a specified status. Includes only one of the fields `route`, `statusResponse`. Action performed on the request if the route is selected.

GrpcRouteMatch

A gRPC route condition (predicate) resource.

Field

Description

fqmn

StringMatch

Match settings for gRPC service method called in the request.

A match string must be a fully qualified method name, e.g. foo.bar.v1.BazService/Get, or a prefix of such.

If not specified, the route matches all methods.

GrpcRouteAction

A gRPC route action resource.

Field	Description
backendGroupId	string Required field. Backend group to forward requests to.
maxTimeout	string (duration) Overall timeout for an underlying HTTP connection between a load balancer node an a backend from the backend group: the maximum time the connection is kept alive for, regardless of whether data is transferred over it. If a client specifies a lower timeout in HTTP `grpc-timeout` header, the `max_timeout` value is ignored. If a connection times out, the load balancer responds to the client with an `UNAVAILABLE` status code. Default value: `60`.
idleTimeout	string (duration) Idle timeout for an underlying HTTP connection between a load balancer node an a backend from the backend group: the maximum time the connection is allowed to be idle, i.e. without any data transferred over it. Specifying meaningful values for both `maxTimeout` and `idle_timeout` is useful for implementing server-push mechanisms such as long polling, server-sent events etc. If a connection times out, the load balancer responds to the client with an `UNAVAILABLE` status code. If not specified, no idle timeout is used, and an alive connection may be idle for any duration (see `maxTimeout`).
hostRewrite	string Host replacement. Includes only one of the fields `hostRewrite`, `autoHostRewrite`. Value rewrite settings for HTTP/1.1 `Host` headers and HTTP/2 `:authority` pseudo-headers. If not specified, the host is not changed.
autoHostRewrite	boolean Automatically replaces the host with that of the target. Includes only one of the fields `hostRewrite`, `autoHostRewrite`. Value rewrite settings for HTTP/1.1 `Host` headers and HTTP/2 `:authority` pseudo-headers. If not specified, the host is not changed.
rateLimit	RateLimit RateLimit is a rate limit configuration applied for route.

GrpcStatusResponseAction

A gRPC status response action resource.

Field

Description

status

enum (Status)

gRPC status code to use in responses.

OK: OK (0) status code.
INVALID_ARGUMENT: INVALID_ARGUMENT (3) status code.
NOT_FOUND: NOT_FOUND (5) status code.
PERMISSION_DENIED: PERMISSION_DENIED (7) status code.
UNAUTHENTICATED: UNAUTHENTICATED (16) status code.
UNIMPLEMENTED: UNIMPLEMENTED (12) status code.
INTERNAL: INTERNAL (13) status code.
UNAVAILABLE: UNAVAILABLE (14) status code.

RouteOptions

Field	Description
modifyRequestHeaders[]	HeaderModification Apply the following modifications to the request headers.
modifyResponseHeaders[]	HeaderModification Apply the following modifications to the response headers.
rbac	RBAC
securityProfileId	string Security profile that will take effect to all requests routed via particular virtual host.

HeaderModification

A header modification resource.

Field	Description
name	string Name of the header.
append	string Appends the specified string to the header value. Variables defined for Envoy proxy are supported. Includes only one of the fields `append`, `replace`, `remove`, `rename`. Operation to perform on the header.
replace	string Replaces the value of the header with the specified string. Variables defined for Envoy proxy are supported. Includes only one of the fields `append`, `replace`, `remove`, `rename`. Operation to perform on the header.
remove	boolean Removes the header. Includes only one of the fields `append`, `replace`, `remove`, `rename`. Operation to perform on the header.
rename	string Replaces the name of the header with the specified string. This operation is only supported for ALB Virtual Hosts. Includes only one of the fields `append`, `replace`, `remove`, `rename`. Operation to perform on the header.

RBAC

Field

Description

action

enum (Action)

Required field. The action to take if a principal matches. Every action either allows or denies a request.

ACTION_UNSPECIFIED
ALLOW: Allows the request if and only if there is a principal that matches the request.
DENY: Allows the request if and only if there are no principal that match the request.

principals[]

Principals

Required. A match occurs when at least one matches the request.

Principals

Principals define a group of identities for a request.

Field

Description

andPrincipals[]

Principal

Required. A match occurs when all principals match the request.

Principal

Principal defines an identity for a request.

Field	Description
header	HeaderMatcher A header (or pseudo-header such as :path or :method) of the incoming HTTP request. Includes only one of the fields `header`, `remoteIp`, `any`.
remoteIp	string A CIDR block or IP that describes the request remote/origin address, e.g. `192.0.0.0/24` or`192.0.0.4` . Includes only one of the fields `header`, `remoteIp`, `any`.
any	boolean When any is set, it matches any request. Includes only one of the fields `header`, `remoteIp`, `any`.

HeaderMatcher

Field

Description

name

string

Required field. Specifies the name of the header in the request.

value

StringMatch

Specifies how the header match will be performed to route the request.
In the absence of value a request that has specified header name will match,
regardless of the header's value.

Application Load Balancer API, REST: HttpRouter.Update

HTTP requestHTTP request

Path parametersPath parameters

Body parametersBody parameters

VirtualHostVirtualHost

RouteRoute

HttpRouteHttpRoute

HttpRouteMatchHttpRouteMatch

StringMatchStringMatch

HttpRouteActionHttpRouteAction

RateLimitRateLimit

LimitLimit

RedirectActionRedirectAction

DirectResponseActionDirectResponseAction

PayloadPayload

GrpcRouteGrpcRoute

GrpcRouteMatchGrpcRouteMatch

GrpcRouteActionGrpcRouteAction

GrpcStatusResponseActionGrpcStatusResponseAction

RouteOptionsRouteOptions

HeaderModificationHeaderModification

RBACRBAC

PrincipalsPrincipals

PrincipalPrincipal

HeaderMatcherHeaderMatcher

ResponseResponse

UpdateHttpRouterMetadataUpdateHttpRouterMetadata

StatusStatus

HttpRouterHttpRouter

VirtualHostVirtualHost

RouteRoute

HttpRouteHttpRoute

HttpRouteMatchHttpRouteMatch

StringMatchStringMatch

HttpRouteActionHttpRouteAction

RateLimitRateLimit

LimitLimit

RedirectActionRedirectAction

DirectResponseActionDirectResponseAction

PayloadPayload

GrpcRouteGrpcRoute

GrpcRouteMatchGrpcRouteMatch

GrpcRouteActionGrpcRouteAction

GrpcStatusResponseActionGrpcStatusResponseAction

RouteOptionsRouteOptions

HeaderModificationHeaderModification

RBACRBAC

PrincipalsPrincipals

PrincipalPrincipal

HeaderMatcherHeaderMatcher

Was the article helpful?

HTTP request

Path parameters

Body parameters

VirtualHost

Route

HttpRoute

HttpRouteMatch

StringMatch

HttpRouteAction

RateLimit

Limit

RedirectAction

DirectResponseAction

Payload

GrpcRoute

GrpcRouteMatch

GrpcRouteAction

GrpcStatusResponseAction

RouteOptions

HeaderModification

RBAC

Principals

Principal

HeaderMatcher

Response

UpdateHttpRouterMetadata

Status

HttpRouter

VirtualHost

Route

HttpRoute

HttpRouteMatch

StringMatch

HttpRouteAction

RateLimit

Limit

RedirectAction

DirectResponseAction

Payload

GrpcRoute

GrpcRouteMatch

GrpcRouteAction

GrpcStatusResponseAction

RouteOptions

HeaderModification

RBAC

Principals

Principal

HeaderMatcher