Application Load Balancer API, REST: LoadBalancer.Get

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Updated at July 9, 2026

HTTP request
Path parameters
Response
Listener
Endpoint
Address
ExternalIpv4Address
InternalIpv4Address
ExternalIpv6Address
StreamListener
StreamHandler
HttpListener
HttpHandler
Http2Options
Redirects
TlsListener
TlsHandler
ClientCertificatesVerification
SniMatch
AllocationPolicy
Location
AutoScalePolicy
LogOptions
LogDiscardRule

Returns the specified application load balancer.
To get the list of all available application load balancers, make a List request.

HTTP request

GET https://alb.api.cloud.yandex.net/apploadbalancer/v1/loadBalancers/{loadBalancerId}

Path parameters

Field

Description

loadBalancerId

string

Required field. ID of the application load balancer to return.
To get the application load balancer ID, make a LoadBalancerService.List request.

Response

HTTP Code: 200 - OK

{
  "id": "string",
  "name": "string",
  "description": "string",
  "folderId": "string",
  "labels": "object",
  "status": "string",
  "listeners": [
    {
      "name": "string",
      "endpoints": [
        {
          "addresses": [
            {
              // Includes only one of the fields `externalIpv4Address`, `internalIpv4Address`, `externalIpv6Address`
              "externalIpv4Address": {
                "address": "string"
              },
              "internalIpv4Address": {
                "address": "string",
                "subnetId": "string"
              },
              "externalIpv6Address": {
                "address": "string"
              }
              // end of the list of possible fields
            }
          ],
          "ports": [
            "string"
          ]
        }
      ],
      // Includes only one of the fields `stream`, `http`, `tls`
      "stream": {
        "handler": {
          "backendGroupId": "string",
          "idleTimeout": "string"
        }
      },
      "http": {
        "handler": {
          "httpRouterId": "string",
          "rewriteRequestId": "boolean",
          // Includes only one of the fields `http2Options`, `allowHttp10`
          "http2Options": {
            "maxConcurrentStreams": "string"
          },
          "allowHttp10": "boolean",
          // end of the list of possible fields
          "preserveHttp1HeaderCasing": "boolean"
        },
        "redirects": {
          "httpToHttps": "boolean"
        }
      },
      "tls": {
        "defaultHandler": {
          // Includes only one of the fields `streamHandler`, `httpHandler`
          "streamHandler": {
            "backendGroupId": "string",
            "idleTimeout": "string"
          },
          "httpHandler": {
            "httpRouterId": "string",
            "rewriteRequestId": "boolean",
            // Includes only one of the fields `http2Options`, `allowHttp10`
            "http2Options": {
              "maxConcurrentStreams": "string"
            },
            "allowHttp10": "boolean",
            // end of the list of possible fields
            "preserveHttp1HeaderCasing": "boolean"
          },
          // end of the list of possible fields
          "certificateIds": [
            "string"
          ],
          "clientCertificatesVerification": {
            "requireClientCertificate": "boolean",
            // Includes only one of the fields `bytes`
            "bytes": "string"
            // end of the list of possible fields
          }
        },
        "sniHandlers": [
          {
            "name": "string",
            "serverNames": [
              "string"
            ],
            "handler": {
              // Includes only one of the fields `streamHandler`, `httpHandler`
              "streamHandler": {
                "backendGroupId": "string",
                "idleTimeout": "string"
              },
              "httpHandler": {
                "httpRouterId": "string",
                "rewriteRequestId": "boolean",
                // Includes only one of the fields `http2Options`, `allowHttp10`
                "http2Options": {
                  "maxConcurrentStreams": "string"
                },
                "allowHttp10": "boolean",
                // end of the list of possible fields
                "preserveHttp1HeaderCasing": "boolean"
              },
              // end of the list of possible fields
              "certificateIds": [
                "string"
              ],
              "clientCertificatesVerification": {
                "requireClientCertificate": "boolean",
                // Includes only one of the fields `bytes`
                "bytes": "string"
                // end of the list of possible fields
              }
            }
          }
        ]
      }
      // end of the list of possible fields
    }
  ],
  "allocationPolicy": {
    "locations": [
      {
        "zoneId": "string",
        "subnetId": "string",
        "disableTraffic": "boolean",
        "zonalShiftActive": "boolean",
        "zonalTrafficDisabled": "boolean"
      }
    ]
  },
  "networkId": "string",
  "logGroupId": "string",
  "regionId": "string",
  "securityGroupIds": [
    "string"
  ],
  "createdAt": "string",
  "autoScalePolicy": {
    "minZoneSize": "string",
    "maxSize": "string"
  },
  "logOptions": {
    "logGroupId": "string",
    "discardRules": [
      {
        "httpCodes": [
          "string"
        ],
        "httpCodeIntervals": [
          "string"
        ],
        "grpcCodes": [
          "string"
        ],
        "discardPercent": "string"
      }
    ],
    "disable": "boolean"
  },
  "allowZonalShift": "boolean"
}

An application load balancer resource.
For details about the concept, see documentation.

Field	Description
id	string ID of the application load balancer. Generated at creation time.
name	string Name of the application load balancer. The name is unique within the folder.
description	string Description of the application load balancer.
folderId	string ID of the folder that the application load balancer belongs to.
labels	object (map<string, string>) Application load balancer labels as `key:value` pairs. For details about the concept, see documentation.
status	enum (Status) Status of the application load balancer. `CREATING`: The application load balancer is being created. `STARTING`: The application load balancer is being started. `ACTIVE`: The application load balancer is active and sends traffic to the targets. `STOPPING`: The application load balancer is being stopped. `STOPPED`: The application load balancer is stopped and doesn't send traffic to the targets. `DELETING`: The application load balancer is being deleted.
listeners[]	Listener Listeners that belong to the application load balancer. For details about the concept, see documentation.
allocationPolicy	AllocationPolicy Locality settings of the application load balancer. For details about the concept, see documentation.
networkId	string ID of the network that the application load balancer belongs to.
logGroupId	string ID of the log group that stores access logs of the application load balancer. The logs can be accessed using a Cloud Functions trigger for Cloud Logs.
regionId	string ID of the region that the application load balancer is located at.
securityGroupIds[]	string ID's of the security groups attributed to the application load balancer. For details about the concept, see documentation.
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).
autoScalePolicy	AutoScalePolicy Scaling settings of the application load balancer. The scaling settings relate to a special internal instance group which facilitates the balancer's work. Instances in this group are called resource units. The group is scaled automatically based on incoming load and within limitations specified in these settings. For details about the concept, see documentation.
logOptions	LogOptions Cloud logging settings of the application load balancer.
allowZonalShift	boolean Specifies whether application load balancer is available to zonal shift.

Listener

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

Field	Description
name	string Required field. Name of the listener. The name is unique within the application load balancer. The string length in characters is 3-63.
endpoints[]	Endpoint Endpoints of the listener. Endpoints are defined by their IP addresses and ports.
stream	StreamListener Unencrypted stream (TCP) listener settings. Includes only one of the fields `stream`, `http`, `tls`. Listener type and settings.
http	HttpListener Unencrypted HTTP listener settings. Includes only one of the fields `stream`, `http`, `tls`. Listener type and settings.
tls	TlsListener TLS-encrypted HTTP or TCP stream listener settings. All handlers within a listener (TlsListener.defaultHandler and TlsListener.sniHandlers) must be of one type, HttpHandler or StreamHandler. Mixing HTTP and TCP stream traffic in a TLS-encrypted listener is not supported. Includes only one of the fields `stream`, `http`, `tls`. Listener type and settings.

Endpoint

An endpoint resource.

Field

Description

addresses[]

Address

Endpoint public (external) and internal addresses.

The number of elements must be greater than 0.

ports[]

string (int64)

Endpoint ports.

The number of elements must be greater than 0. Acceptable values are 1 to 65535, inclusive.

Address

An endpoint address resource.

Field	Description
externalIpv4Address	ExternalIpv4Address Public IPv4 endpoint address. Includes only one of the fields `externalIpv4Address`, `internalIpv4Address`, `externalIpv6Address`. Endpoint address of one of the types: public (external) IPv4 address, internal IPv4 address, public IPv6 address.
internalIpv4Address	InternalIpv4Address Internal IPv4 endpoint address. To enable the use of listeners with internal addresses, contact support. Includes only one of the fields `externalIpv4Address`, `internalIpv4Address`, `externalIpv6Address`. Endpoint address of one of the types: public (external) IPv4 address, internal IPv4 address, public IPv6 address.
externalIpv6Address	ExternalIpv6Address Public IPv6 endpoint address. Includes only one of the fields `externalIpv4Address`, `internalIpv4Address`, `externalIpv6Address`. Endpoint address of one of the types: public (external) IPv4 address, internal IPv4 address, public IPv6 address.

ExternalIpv4Address

A public (external) IPv4 endpoint address resource.

Field

Description

address

string

IPv4 address.

InternalIpv4Address

An internal IPv4 endpoint address resource.

Field

Description

address

string

IPv4 address.

subnetId

string

ID of the subnet that the address belongs to.

ExternalIpv6Address

A public (external) IPv4 endpoint address resource.

Field

Description

address

string

IPv6 address.

StreamListener

A stream (TCP) listener resource.

Field

Description

handler

StreamHandler

Required field. Settings for handling stream (TCP) requests.

StreamHandler

A stream (TCP) handler resource.

Field

Description

backendGroupId

string

Required field. ID of the backend group processing requests. For details about the concept, see
documentation.
The backend group type, specified via BackendGroup.backend, must be stream.
To get the list of all available backend groups, make a BackendGroupService.List request.

idleTimeout

string (duration)

The idle timeout is duration during which no data is transmitted or received on either the upstream or downstream connection.
If not configured, the default idle timeout is 1 hour. Setting it to 0 disables the timeout.

HttpListener

An HTTP listener resource.

Field

Description

handler

HttpHandler

Settings for handling HTTP requests.
Only one of handler and redirects can be specified.

redirects

Redirects

Redirects settings.
Only one of redirects and handler can be specified.

HttpHandler

An HTTP handler resource.

Field	Description
httpRouterId	string ID of the HTTP router processing requests. For details about the concept, see documentation. To get the list of all available HTTP routers, make a HttpRouterService.List request.
rewriteRequestId	boolean When unset, will preserve the incoming x-request-id header, otherwise would rewrite it with a new value.
http2Options	Http2Options HTTP/2 settings. If specified, incoming HTTP/2 requests are supported by the listener. Includes only one of the fields `http2Options`, `allowHttp10`. Protocol settings. For HTTPS (HTTP over TLS) connections, settings are applied to the protocol negotiated using TLS ALPN extension.
allowHttp10	boolean Enables support for incoming HTTP/1.0 and HTTP/1.1 requests and disables it for HTTP/2 requests. Includes only one of the fields `http2Options`, `allowHttp10`. Protocol settings. For HTTPS (HTTP over TLS) connections, settings are applied to the protocol negotiated using TLS ALPN extension.
preserveHttp1HeaderCasing	boolean When enabled, preserves the original casing of HTTP/1.1 header names (e.g. "CONTENT-Type" -> "CONTENT-Type"). Has no effect on HTTP/2 connections where headers are always lowercase per RFC 7540.

Http2Options

An HTTP/2 options resource.

Field

Description

maxConcurrentStreams

string (int64)

Maximum number of concurrent HTTP/2 streams in a connection.

Redirects

A listener redirects resource.

Field

Description

httpToHttps

boolean

Redirects all unencrypted HTTP requests to the same URI with scheme changed to https.
The setting has the same effect as a single, catch-all HttpRoute
with RedirectAction.replaceScheme set to https.

TlsListener

TLS-encrypted (HTTP or TCP stream) listener resource.

Field

Description

defaultHandler

TlsHandler

Required field. Settings for handling requests by default, with Server Name
Indication (SNI) not matching any of the sniHandlers.

sniHandlers[]

SniMatch

Settings for handling requests with Server Name Indication (SNI)
matching one of SniMatch.serverNames values.

TlsHandler

A TLS-encrypted (HTTP or TCP stream) handler resource.

Field	Description
streamHandler	StreamHandler Stream (TCP) handler. Includes only one of the fields `streamHandler`, `httpHandler`. Settings for handling requests.
httpHandler	HttpHandler HTTP handler. Includes only one of the fields `streamHandler`, `httpHandler`. Settings for handling requests.
certificateIds[]	string ID's of the TLS server certificates from Certificate Manager. RSA and ECDSA certificates are supported, and only the first certificate of each type is used. The string length in characters for each value must be greater than 1. The maximum number of elements is 1.
clientCertificatesVerification	ClientCertificatesVerification Client certificates verification settings.

ClientCertificatesVerification

Client certificates verification settings.

Field

Description

requireClientCertificate

boolean

If true, ALB will reject connections without a valid client certificate.

bytes

string

Trusted certificate authority certificates bundle (PEM text).

Includes only one of the fields bytes.

SniMatch

A SNI handler resource.

Field	Description
name	string Required field. Name of the SNI handler.
serverNames[]	string Server names that are matched by the SNI handler. The string length in characters for each value must be 1-255. Each value must match the regular expression `([*].)?[-.a-z0-9]+`. The number of elements must be greater than 0.
handler	TlsHandler Required field. Settings for handling requests with Server Name Indication (SNI) matching one of `serverNames` values.

AllocationPolicy

A locality settings (allocation policy) resource.

Field

Description

locations[]

Location

Availability zones and subnets that the application load balancer resides.

The minimum number of elements is 1.

Location

An application load balancer location resource.
For details about the concept, see documentation.

Field	Description
zoneId	string Required field. ID of the availability zone where the application load balancer resides. Each availability zone can only be specified once.
subnetId	string ID of the subnet that the application load balancer belongs to.
disableTraffic	boolean Disables the load balancer node in the specified availability zone. Backends in the availability zone are not directly affected by this setting. They still may receive traffic from the load balancer nodes in other availability zones, subject to LoadBalancingConfig.localityAwareRoutingPercent and LoadBalancingConfig.strictLocality settings.
zonalShiftActive	boolean Show zonal shift status for the location. Deprecated: use `zonalTrafficDisabled` below to track traffic status.
zonalTrafficDisabled	boolean Computed field: will be set to true if all traffic in zone is disabled either manually by user or automatically by Cloud infrastructure.

AutoScalePolicy

A resource for scaling settings of an application load balancer.

Field

Description

minZoneSize

string (int64)

Lower limit for the number of resource units in each availability zone.
If not specified previously (using other instruments such as management console), the default value is 2.
To revert to it, specify it explicitly.
The minimum value is 2.

Acceptable values are 0 to 1000, inclusive.

maxSize

string (int64)

Upper limit for the total number of resource units across all availability zones.
If a positive value is specified, it must be at least minZoneSize multiplied by the size of
AllocationPolicy.locations.
If the value is 0, there is no upper limit.

Acceptable values are 0 to 1000, inclusive.

LogOptions

Field	Description
logGroupId	string Cloud Logging log group ID to store access logs. If not set then logs will be stored in default log group for the folder where load balancer located. Value must match the regular expression `([a-zA-Z][-a-zA-Z0-9_.]{0,63})?`.
discardRules[]	LogDiscardRule ordered list of rules, first matching rule applies
disable	boolean Do not send logs to Cloud Logging log group.

LogDiscardRule

LogDiscardRule discards a fraction of logs with certain codes.
If neither codes or intervals are provided, rule applies to all logs.

Field	Description
httpCodes[]	string (int64) HTTP codes that should be discarded. Acceptable values are 100 to 599, inclusive.
httpCodeIntervals[]	enum (HttpCodeInterval) Groups of HTTP codes like 4xx that should be discarded. `HTTP_1XX` `HTTP_2XX` `HTTP_3XX` `HTTP_4XX` `HTTP_5XX` `HTTP_ALL`
grpcCodes[]	enum (Code) GRPC codes that should be discarded `OK`: Not an error; returned on success HTTP Mapping: 200 OK `CANCELLED`: The operation was cancelled, typically by the caller. HTTP Mapping: 499 Client Closed Request `UNKNOWN`: Unknown error. For example, this error may be returned when a `Status` value received from another address space belongs to an error space that is not known in this address space. Also errors raised by APIs that do not return enough error information may be converted to this error. HTTP Mapping: 500 Internal Server Error `INVALID_ARGUMENT`: The client specified an invalid argument. Note that this differs from `FAILED_PRECONDITION`. `INVALID_ARGUMENT` indicates arguments that are problematic regardless of the state of the system (e.g., a malformed file name). HTTP Mapping: 400 Bad Request `DEADLINE_EXCEEDED`: The deadline expired before the operation could complete. For operations that change the state of the system, this error may be returned even if the operation has completed successfully. For example, a successful response from a server could have been delayed long enough for the deadline to expire. HTTP Mapping: 504 Gateway Timeout `NOT_FOUND`: Some requested entity (e.g., file or directory) was not found. Note to server developers: if a request is denied for an entire class of users, such as gradual feature rollout or undocumented whitelist, `NOT_FOUND` may be used. If a request is denied for some users within a class of users, such as user-based access control, `PERMISSION_DENIED` must be used. HTTP Mapping: 404 Not Found `ALREADY_EXISTS`: The entity that a client attempted to create (e.g., file or directory) already exists. HTTP Mapping: 409 Conflict `PERMISSION_DENIED`: The caller does not have permission to execute the specified operation. `PERMISSION_DENIED` must not be used for rejections caused by exhausting some resource (use `RESOURCE_EXHAUSTED` instead for those errors). `PERMISSION_DENIED` must not be used if the caller can not be identified (use `UNAUTHENTICATED` instead for those errors). This error code does not imply the request is valid or the requested entity exists or satisfies other pre-conditions. HTTP Mapping: 403 Forbidden `UNAUTHENTICATED`: The request does not have valid authentication credentials for the operation. HTTP Mapping: 401 Unauthorized `RESOURCE_EXHAUSTED`: Some resource has been exhausted, perhaps a per-user quota, or perhaps the entire file system is out of space. HTTP Mapping: 429 Too Many Requests `FAILED_PRECONDITION`: The operation was rejected because the system is not in a state required for the operation's execution. For example, the directory to be deleted is non-empty, an rmdir operation is applied to a non-directory, etc. Service implementors can use the following guidelines to decide between `FAILED_PRECONDITION`, `ABORTED`, and `UNAVAILABLE`: (a) Use `UNAVAILABLE` if the client can retry just the failing call. (b) Use `ABORTED` if the client should retry at a higher level (e.g., when a client-specified test-and-set fails, indicating the client should restart a read-modify-write sequence). (c) Use `FAILED_PRECONDITION` if the client should not retry until the system state has been explicitly fixed. E.g., if an "rmdir" fails because the directory is non-empty, `FAILED_PRECONDITION` should be returned since the client should not retry unless the files are deleted from the directory. HTTP Mapping: 400 Bad Request `ABORTED`: The operation was aborted, typically due to a concurrency issue such as a sequencer check failure or transaction abort. See the guidelines above for deciding between `FAILED_PRECONDITION`, `ABORTED`, and `UNAVAILABLE`. HTTP Mapping: 409 Conflict `OUT_OF_RANGE`: The operation was attempted past the valid range. E.g., seeking or reading past end-of-file. Unlike `INVALID_ARGUMENT`, this error indicates a problem that may be fixed if the system state changes. For example, a 32-bit file system will generate `INVALID_ARGUMENT` if asked to read at an offset that is not in the range [0,2^32-1], but it will generate `OUT_OF_RANGE` if asked to read from an offset past the current file size. There is a fair bit of overlap between `FAILED_PRECONDITION` and `OUT_OF_RANGE`. We recommend using `OUT_OF_RANGE` (the more specific error) when it applies so that callers who are iterating through a space can easily look for an `OUT_OF_RANGE` error to detect when they are done. HTTP Mapping: 400 Bad Request `UNIMPLEMENTED`: The operation is not implemented or is not supported/enabled in this service. HTTP Mapping: 501 Not Implemented `INTERNAL`: Internal errors. This means that some invariants expected by the underlying system have been broken. This error code is reserved for serious errors. HTTP Mapping: 500 Internal Server Error `UNAVAILABLE`: The service is currently unavailable. This is most likely a transient condition, which can be corrected by retrying with a backoff. See the guidelines above for deciding between `FAILED_PRECONDITION`, `ABORTED`, and `UNAVAILABLE`. HTTP Mapping: 503 Service Unavailable `DATA_LOSS`: Unrecoverable data loss or corruption. HTTP Mapping: 500 Internal Server Error
discardPercent	string (int64) Percent of logs to be discarded: 0 - keep all, 100 or unset - discard all Acceptable values are 0 to 100, inclusive.

Application Load Balancer API, REST: LoadBalancer.Get

HTTP requestHTTP request

Path parametersPath parameters

ResponseResponse

ListenerListener

EndpointEndpoint

AddressAddress

ExternalIpv4AddressExternalIpv4Address

InternalIpv4AddressInternalIpv4Address

ExternalIpv6AddressExternalIpv6Address

StreamListenerStreamListener

StreamHandlerStreamHandler

HttpListenerHttpListener

HttpHandlerHttpHandler

Http2OptionsHttp2Options

RedirectsRedirects

TlsListenerTlsListener

TlsHandlerTlsHandler

ClientCertificatesVerificationClientCertificatesVerification

SniMatchSniMatch

AllocationPolicyAllocationPolicy

LocationLocation

AutoScalePolicyAutoScalePolicy

LogOptionsLogOptions

LogDiscardRuleLogDiscardRule

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HTTP request

Path parameters

Response

Listener

Endpoint

Address

ExternalIpv4Address

InternalIpv4Address

ExternalIpv6Address

StreamListener

StreamHandler

HttpListener

HttpHandler

Http2Options

Redirects

TlsListener

TlsHandler

ClientCertificatesVerification

SniMatch

AllocationPolicy

Location

AutoScalePolicy

LogOptions

LogDiscardRule