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Yandex Application Load Balancer

Method update

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Updates the specified virtual host of the specified HTTP router.

HTTP request

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

Path parameters

Parameter Description
httpRouterId Required. ID of the HTTP router to update a virtual host in. To get the HTTP router ID, make a list request.
virtualHostName Required. Name of the virtual host. Used only to refer to the virtual host. The name of a host cannot be changed. To get the virtual host name, make a list request.

Body parameters

{
  "updateMask": "string",
  "authority": [
    "string"
  ],
  "routes": [
    {
      "name": "string",

      // `routes[]` includes only one of the fields `http`, `grpc`
      "http": {
        "match": {
          "httpMethod": [
            "string"
          ],
          "path": {

            // `routes[].http.match.path` includes only one of the fields `exactMatch`, `prefixMatch`
            "exactMatch": "string",
            "prefixMatch": "string",
            // end of the list of possible fields`routes[].http.match.path`

          }
        },

        // `routes[].http` includes only one of the fields `route`, `redirect`, `directResponse`
        "route": {
          "backendGroupId": "string",
          "timeout": "string",
          "idleTimeout": "string",
          "prefixRewrite": "string",
          "upgradeTypes": [
            "string"
          ],

          // `routes[].http.route` includes only one of the fields `hostRewrite`, `autoHostRewrite`
          "hostRewrite": "string",
          "autoHostRewrite": true,
          // end of the list of possible fields`routes[].http.route`

        },
        "redirect": {
          "replaceScheme": "string",
          "replaceHost": "string",
          "replacePort": "string",
          "removeQuery": true,
          "responseCode": "string",

          // `routes[].http.redirect` includes only one of the fields `replacePath`, `replacePrefix`
          "replacePath": "string",
          "replacePrefix": "string",
          // end of the list of possible fields`routes[].http.redirect`

        },
        "directResponse": {
          "status": "string",
          "body": {
            "text": "string"
          }
        },
        // end of the list of possible fields`routes[].http`

      },
      "grpc": {
        "match": {
          "fqmn": {

            // `routes[].grpc.match.fqmn` includes only one of the fields `exactMatch`, `prefixMatch`
            "exactMatch": "string",
            "prefixMatch": "string",
            // end of the list of possible fields`routes[].grpc.match.fqmn`

          }
        },

        // `routes[].grpc` includes only one of the fields `route`, `statusResponse`
        "route": {
          "backendGroupId": "string",
          "maxTimeout": "string",
          "idleTimeout": "string",

          // `routes[].grpc.route` includes only one of the fields `hostRewrite`, `autoHostRewrite`
          "hostRewrite": "string",
          "autoHostRewrite": true,
          // end of the list of possible fields`routes[].grpc.route`

        },
        "statusResponse": {
          "status": "string"
        },
        // end of the list of possible fields`routes[].grpc`

      },
      // end of the list of possible fields`routes[]`

    }
  ],
  "modifyRequestHeaders": [
    {
      "name": "string",

      // `modifyRequestHeaders[]` includes only one of the fields `append`, `replace`, `remove`, `rename`
      "append": "string",
      "replace": "string",
      "remove": true,
      "rename": "string",
      // end of the list of possible fields`modifyRequestHeaders[]`

    }
  ],
  "modifyResponseHeaders": [
    {
      "name": "string",

      // `modifyResponseHeaders[]` includes only one of the fields `append`, `replace`, `remove`, `rename`
      "append": "string",
      "replace": "string",
      "remove": true,
      "rename": "string",
      // end of the list of possible fields`modifyResponseHeaders[]`

    }
  ]
}
Field Description
updateMask string

Field mask that specifies which attributes of the virtual host should be updated.

A comma-separated names off ALL fields to be updated. Оnly 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.
authority[] string

New list of domains to attribute 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.

Existing list of domains is completely replaced by the specified list.

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[] object

A route resource. For details about the concept, see documentation.
routes[].
name		 string

Required. Name of the route.
routes[].
http		 object
HTTP route configuration.
routes[] includes only one of the fields http, grpc

An HTTP route configuration resource.
routes[].
http.
match		 object
Condition (predicate) used to select the route.

An HTTP route condition (predicate) resource.
routes[].
http.
match.
httpMethod[]		 string

HTTP method specified in the request.
routes[].
http.
match.
path		 object

Match settings for the path specified in the request.

If not specified, the route matches all paths.

A string matcher resource.
routes[].
http.
match.
path.
exactMatch		 string
routes[].http.match.path includes only one of the fields exactMatch, prefixMatch

Exact match string.
routes[].
http.
match.
path.
prefixMatch		 string
routes[].http.match.path includes only one of the fields exactMatch, prefixMatch

Prefix match string.
routes[].
http.
route		 object
Forwards the request to a backend group for processing as configured.
routes[].http includes only one of the fields route, redirect, directResponse

An HTTP route action resource.
routes[].
http.
route.
backendGroupId		 string

Required. Backend group to forward requests to.
routes[].
http.
route.
timeout		 string

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.
routes[].
http.
route.
idleTimeout		 string

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).
routes[].
http.
route.
prefixRewrite		 string

Replacement for the path prefix matched by [StringMatch.match].

For instance, if prefixMatch value is /foo and replace_prefix value is /bar, a request with /foobaz path is forwarded with /barbaz path. For exactMatch, the whole path is replaced.

If not specified, the path is not changed.
routes[].
http.
route.
upgradeTypes[]		 string

Supported values for HTTP Upgrade header. E.g. websocket.
routes[].
http.
route.
hostRewrite		 string
routes[].http.route includes only one of the fields hostRewrite, autoHostRewrite

Host replacement.
routes[].
http.
route.
autoHostRewrite		 boolean (boolean)
routes[].http.route includes only one of the fields hostRewrite, autoHostRewrite

Automatically replaces the host with that of the target.
routes[].
http.
redirect		 object
Redirects the request as configured.
routes[].http includes only one of the fields route, redirect, directResponse

A redirect action resource.
routes[].
http.
redirect.
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.
routes[].
http.
redirect.
replaceHost		 string

URI host replacement.

If not specified, the original host is used.
routes[].
http.
redirect.
replacePort		 string (int64)

URI host replacement.

If not specified, the original host is used.
routes[].
http.
redirect.
removeQuery		 boolean (boolean)

Removes URI query.
routes[].
http.
redirect.
responseCode		 string
HTTP status code to use in redirect responses.

HTTP status codes supported for 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.
routes[].
http.
redirect.
replacePath		 string
routes[].http.redirect includes only one of the fields replacePath, replacePrefix

Replacement for the whole path.
routes[].
http.
redirect.
replacePrefix		 string
routes[].http.redirect includes only one of the fields replacePath, replacePrefix

Replacement for the path prefix matched by [StringMatch.match].

For instance, if 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 exactMatch, the whole path is replaced.
routes[].
http.
directResponse		 object
Instructs the load balancer to respond directly as configured.
routes[].http includes only one of the fields route, redirect, directResponse

A direct response action resource.
routes[].
http.
directResponse.
status		 string (int64)

HTTP status code to use in responses.

Acceptable values are 100 to 599, inclusive.
routes[].
http.
directResponse.
body		 object

Response body.

A health check payload resource.
routes[].
http.
directResponse.
body.
text		 string

Payload text.

The string length in characters must be greater than 0.
routes[].
grpc		 object
gRPC route configuration.
routes[] includes only one of the fields http, grpc

A gRPC route configuration resource.
routes[].
grpc.
match		 object
Condition (predicate) used to select the route.

A gRPC route condition (predicate) resource.
routes[].
grpc.
match.
fqmn		 object

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.

A string matcher resource.
routes[].
grpc.
match.
fqmn.
exactMatch		 string
routes[].grpc.match.fqmn includes only one of the fields exactMatch, prefixMatch

Exact match string.
routes[].
grpc.
match.
fqmn.
prefixMatch		 string
routes[].grpc.match.fqmn includes only one of the fields exactMatch, prefixMatch

Prefix match string.
routes[].
grpc.
route		 object
Forwards the request to a backend group for processing as configured.
routes[].grpc includes only one of the fields route, statusResponse

A gRPC route action resource.
routes[].
grpc.
route.
backendGroupId		 string

Required. Backend group to forward requests to.
routes[].
grpc.
route.
maxTimeout		 string

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.
routes[].
grpc.
route.
idleTimeout		 string

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).
routes[].
grpc.
route.
hostRewrite		 string
routes[].grpc.route includes only one of the fields hostRewrite, autoHostRewrite

Host replacement.
routes[].
grpc.
route.
autoHostRewrite		 boolean (boolean)
routes[].grpc.route includes only one of the fields hostRewrite, autoHostRewrite

Automatically replaces the host with that of the target.
routes[].
grpc.
statusResponse		 object
Instructs the load balancer to respond directly with a specified status.
routes[].grpc includes only one of the fields route, statusResponse

A gRPC status response action resource.
routes[].
grpc.
statusResponse.
status		 string

gRPC status code to use in responses.

gRPC status code supported for 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.
modifyRequestHeaders[] object

A header modification resource.
modifyRequestHeaders[].
name		 string

Name of the header.
modifyRequestHeaders[].
append		 string
modifyRequestHeaders[] includes only one of the fields append, replace, remove, rename

Appends the specified string to the header value.

Variables defined for Envoy proxy are supported.
modifyRequestHeaders[].
replace		 string
modifyRequestHeaders[] includes only one of the fields append, replace, remove, rename

Replaces the value of the header with the specified string.

Variables defined for Envoy proxy are supported.
modifyRequestHeaders[].
remove		 boolean (boolean)
modifyRequestHeaders[] includes only one of the fields append, replace, remove, rename

Removes the header.
modifyRequestHeaders[].
rename		 string
modifyRequestHeaders[] includes only one of the fields append, replace, remove, rename

Replaces the name of the header with the specified string.
modifyResponseHeaders[] object

A header modification resource.
modifyResponseHeaders[].
name		 string

Name of the header.
modifyResponseHeaders[].
append		 string
modifyResponseHeaders[] includes only one of the fields append, replace, remove, rename

Appends the specified string to the header value.

Variables defined for Envoy proxy are supported.
modifyResponseHeaders[].
replace		 string
modifyResponseHeaders[] includes only one of the fields append, replace, remove, rename

Replaces the value of the header with the specified string.

Variables defined for Envoy proxy are supported.
modifyResponseHeaders[].
remove		 boolean (boolean)
modifyResponseHeaders[] includes only one of the fields append, replace, remove, rename

Removes the header.
modifyResponseHeaders[].
rename		 string
modifyResponseHeaders[] includes only one of the fields append, replace, remove, rename

Replaces the name of the header with the specified string.

Response

HTTP Code: 200 - OK

{
  "id": "string",
  "description": "string",
  "createdAt": "string",
  "createdBy": "string",
  "modifiedAt": "string",
  "done": true,
  "metadata": "object",

  //  includes only one of the fields `error`, `response`
  "error": {
    "code": "integer",
    "message": "string",
    "details": [
      "object"
    ]
  },
  "response": "object",
  // 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.
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.
done boolean (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 object

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 object
The error result of the operation in case of failure or cancellation.
includes only one of the fields error, response

The error result of the operation in case of failure or cancellation.
error.
code		 integer (int32)

Error code. An enum value of google.rpc.Code.
error.
message		 string

An error message.
error.
details[]		 object

A list of messages that carry the error details.
response object
includes only one of the fields error, response

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.
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