Method: backendServices.insert

HTTP request
Path parameters
Query parameters
Request body
- JSON representation
  - JSON representation
Response body
- JSON representation
  - JSON representation
  - JSON representation
Authorization Scopes
IAM Permissions

Creates a BackendService resource in the specified project using the data included in the request. There are several restrictions and guidelines to keep in mind when creating a backend service. Read Restrictions and Guidelines for more information.

HTTP request

POST https://www.googleapis.com/compute/v1/projects/{project}/global/backendServices

The URL uses Google API HTTP annotation syntax.

Path parameters

Parameters

Parameters
`project`	`string` Project ID for this request.

project

string

Project ID for this request.

Query parameters

Parameters

Parameters
`requestId`	`string` An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported (`00000000-0000-0000-0000-000000000000`).

requestId

string

An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed.

For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments.

The request ID must be a valid UUID with the exception that zero UUID is not supported (00000000-0000-0000-0000-000000000000).

Request body

The request body contains data with the following structure:

JSON representation
{ "id": string, "creationTimestamp": string, "name": string, "description": string, "selfLink": string, "backends": [ { "description": string, "group": string, "balancingMode": enum, "maxUtilization": number, "maxRate": number, "maxRatePerInstance": number, "maxConnections": number, "maxConnectionsPerInstance": number, "capacityScaler": number } ], "healthChecks": [ string ], "timeoutSec": number, "port": number, "protocol": enum, "fingerprint": string, "portName": string, "enableCDN": boolean, "sessionAffinity": enum, "affinityCookieTtlSec": number, "region": string, "loadBalancingScheme": enum, "connectionDraining": { "drainingTimeoutSec": number }, "iap": { "enabled": boolean, "oauth2ClientId": string, "oauth2ClientSecret": string, "oauth2ClientSecretSha256": string }, "cdnPolicy": { "cacheKeyPolicy": , "signedUrlKeyNames": [ string ], "signedUrlCacheMaxAgeSec": string }, "securityPolicy": string, "kind": string }

JSON representation

{
  "id": string,
  "creationTimestamp": string,
  "name": string,
  "description": string,
  "selfLink": string,
  "backends": [
    {
      "description": string,
      "group": string,
      "balancingMode": enum,
      "maxUtilization": number,
      "maxRate": number,
      "maxRatePerInstance": number,
      "maxConnections": number,
      "maxConnectionsPerInstance": number,
      "capacityScaler": number
    }
  ],
  "healthChecks": [
    string
  ],
  "timeoutSec": number,
  "port": number,
  "protocol": enum,
  "fingerprint": string,
  "portName": string,
  "enableCDN": boolean,
  "sessionAffinity": enum,
  "affinityCookieTtlSec": number,
  "region": string,
  "loadBalancingScheme": enum,
  "connectionDraining": {
    "drainingTimeoutSec": number
  },
  "iap": {
    "enabled": boolean,
    "oauth2ClientId": string,
    "oauth2ClientSecret": string,
    "oauth2ClientSecretSha256": string
  },
  "cdnPolicy": {
    "cacheKeyPolicy": ,
    "signedUrlKeyNames": [
      string
    ],
    "signedUrlCacheMaxAgeSec": string
  },
  "securityPolicy": string,
  "kind": string
}

Fields
`id`	`string (fixed64 format)` [Output Only] The unique identifier for the resource. This identifier is defined by the server.
`creationTimestamp`	`string` [Output Only] Creation timestamp in RFC3339 text format.
`name`	`string` Name of the resource. Provided by the client when the resource is created. The name must be 1-63 characters long, and comply with RFC1035. Specifically, the name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.
`description`	`string` An optional description of this resource. Provide this property when you create the resource.
`selfLink`	`string` [Output Only] Server-defined URL for the resource.
`backends[]`	`object` The list of backends that serve this BackendService.
`backends[].description`	`string` An optional description of this resource. Provide this property when you create the resource.
`backends[].group`	`string` The fully-qualified URL of a Instance Group resource. This instance group defines the list of instances that serve traffic. Member virtual machine instances from each instance group must live in the same zone as the instance group itself. No two backends in a backend service are allowed to use same Instance Group resource. Note that you must specify an Instance Group resource using the fully-qualified URL, rather than a partial URL. When the BackendService has load balancing scheme `INTERNAL`, the instance group must be within the same region as the BackendService.
`backends[].balancingMode`	`enum` Specifies the balancing mode for this backend. For global HTTP(S) or TCP/SSL load balancing, the default is `UTILIZATION`. Valid values are `UTILIZATION`, `RATE` (for HTTP(S)) and `CONNECTION` (for TCP/SSL). For Internal Load Balancing, the default and only supported mode is `CONNECTION`.
`backends[].maxUtilization`	`number` Used when `balancingMode` is `UTILIZATION`. This ratio defines the CPU utilization target for the group. The default is `0.8`. Valid range is `[0.0, 1.0]`. This cannot be used for internal load balancing.
`backends[].maxRate`	`number` The max requests per second (RPS) of the group. Can be used with either `RATE` or `UTILIZATION` balancing modes, but required if `RATE` mode. For `RATE` mode, either `maxRate` or `maxRatePerInstance` must be set. This cannot be used for internal load balancing.
`backends[].maxRatePerInstance`	`number` The max requests per second (RPS) that a single backend instance can handle. This is used to calculate the capacity of the group. Can be used in either balancing mode. For `RATE` mode, either `maxRate` or `maxRatePerInstance` must be set. This cannot be used for internal load balancing.
`backends[].maxConnections`	`number` The max number of simultaneous connections for the group. Can be used with either `CONNECTION` or `UTILIZATION` balancing modes. For `CONNECTION` mode, either `maxConnections` or `maxConnectionsPerInstance` must be set. This cannot be used for internal load balancing.
`backends[].maxConnectionsPerInstance`	`number` The max number of simultaneous connections that a single backend instance can handle. This is used to calculate the capacity of the group. Can be used in either `CONNECTION` or `UTILIZATION` balancing modes. For `CONNECTION` mode, either `maxConnections` or `maxConnectionsPerInstance` must be set. This cannot be used for internal load balancing.
`backends[].capacityScaler`	`number` A multiplier applied to the group's maximum servicing capacity (based on `UTILIZATION`, `RATE` or `CONNECTION`). Default value is `1`, which means the group will serve up to 100% of its configured capacity (depending on `balancingMode`). A setting of `0` means the group is completely drained, offering 0% of its available Capacity. Valid range is `[0.0,1.0]`. This cannot be used for internal load balancing.
`healthChecks[]`	`string` The list of URLs to the HttpHealthCheck or HttpsHealthCheck resource for health checking this BackendService. Currently at most one health check can be specified, and a health check is required for Compute Engine backend services. A health check must not be specified for App Engine backend and Cloud Function backend. For internal load balancing, a URL to a HealthCheck resource must be specified instead. Authorization requires one or more of the following Google IAM permissions on the specified resource `health_check`: `compute.healthChecks.useReadOnly` `compute.httpHealthChecks.useReadOnly` `compute.httpsHealthChecks.useReadOnly`
`timeoutSec`	`number` How many seconds to wait for the backend before considering it a failed request. Default is 30 seconds.
`port (deprecated)`	`number` Deprecated in favor of portName. The TCP port to connect on the backend. The default value is 80. This cannot be used for internal load balancing.
`protocol`	`enum` The protocol this BackendService uses to communicate with backends. Possible values are HTTP, HTTPS, TCP, and SSL. The default is HTTP. For internal load balancing, the possible values are TCP and UDP, and the default is TCP.
`fingerprint`	`string (bytes format)` Fingerprint of this resource. A hash of the contents stored in this object. This field is used in optimistic locking. This field will be ignored when inserting a BackendService. An up-to-date fingerprint must be provided in order to update the BackendService. To see the latest fingerprint, make a `get()` request to retrieve a BackendService. A base64-encoded string.
`portName`	`string` Name of backend port. The same name should appear in the instance groups referenced by this service. Required when the load balancing scheme is `EXTERNAL`. When the load balancing scheme is `INTERNAL`, this field is not used.
`enableCDN`	`boolean` If true, enable Cloud CDN for this BackendService. When the load balancing scheme is `INTERNAL`, this field is not used.
`sessionAffinity`	`enum` Type of session affinity to use. The default is NONE. When the load balancing scheme is `EXTERNAL`, can be NONE, CLIENT_IP, or GENERATED_COOKIE. When the load balancing scheme is `INTERNAL`, can be NONE, CLIENT_IP, CLIENT_IP_PROTO, or CLIENT_IP_PORT_PROTO. When the protocol is `UDP`, this field is not used.
`affinityCookieTtlSec`	`number` Lifetime of cookies in seconds if sessionAffinity is GENERATED_COOKIE. If set to 0, the cookie is non-persistent and lasts only until the end of the browser session (or equivalent). The maximum allowed value for TTL is one day. When the load balancing scheme is `INTERNAL`, this field is not used.
`region`	`string` [Output Only] URL of the region where the regional backend service resides. This field is not applicable to global backend services. You must specify this field as part of the HTTP request URL. It is not settable as a field in the request body.
`loadBalancingScheme`	`enum` Indicates whether the backend service will be used with internal or external load balancing. A backend service created for one type of load balancing cannot be used with the other. Possible values are `INTERNAL` and `EXTERNAL`.
`connectionDraining`	`object`
`connectionDraining.drainingTimeoutSec`	`number` Time for which instance will be drained (not accept new connections, but still work to finish started).
`iap`	`object`
`iap.enabled`	`boolean`
`iap.oauth2ClientId`	`string`
`iap.oauth2ClientSecret`	`string`
`iap.oauth2ClientSecretSha256`	`string` [Output Only] SHA256 hash value for the field oauth2ClientSecret above.
`cdnPolicy`	`object` Cloud CDN configuration for this BackendService.
`cdnPolicy.cacheKeyPolicy`	`object` The CacheKeyPolicy for this CdnPolicy.
`cdnPolicy.cacheKeyPolicy.includeProtocol`	`boolean` If true, http and https requests will be cached separately.
`cdnPolicy.cacheKeyPolicy.includeHost`	`boolean` If true, requests to different hosts will be cached separately.
`cdnPolicy.cacheKeyPolicy.includeQueryString`	`boolean` If true, include query string parameters in the cache key according to queryStringWhitelist and queryStringBlacklist. If neither is set, the entire query string will be included. If false, the query string will be excluded from the cache key entirely.
`cdnPolicy.cacheKeyPolicy.queryStringWhitelist[]`	`string` Names of query string parameters to include in cache keys. All other parameters will be excluded. Either specify queryStringWhitelist or queryStringBlacklist, not both. '&' and '=' will be percent encoded and not treated as delimiters.
`cdnPolicy.cacheKeyPolicy.queryStringBlacklist[]`	`string` Names of query string parameters to exclude in cache keys. All other parameters will be included. Either specify queryStringWhitelist or queryStringBlacklist, not both. '&' and '=' will be percent encoded and not treated as delimiters.
`cdnPolicy.signedUrlKeyNames[]`	`string` [Output Only] Names of the keys for signing request URLs.
`cdnPolicy.signedUrlCacheMaxAgeSec`	`string (int64 format)` Maximum number of seconds the response to a signed URL request will be considered fresh. After this time period, the response will be revalidated before being served. Defaults to 1hr (3600s). When serving responses to signed URL requests, Cloud CDN will internally behave as though all responses from this backend had a `“Cache-Control: public, max-age=[TTL]”` header, regardless of any existing Cache-Control header. The actual headers served in responses will not be altered.
`securityPolicy`	`string` [Output Only] The resource URL for the security policy associated with this backend service.
`kind`	`string` [Output Only] Type of resource. Always `compute#backendService` for backend services.

Response body

If successful, the response body contains data with the following structure:

An Operation resource, used to manage asynchronous API requests.

JSON representation
{ "id": string, "creationTimestamp": string, "name": string, "zone": string, "clientOperationId": string, "operationType": string, "targetLink": string, "targetId": string, "status": enum, "statusMessage": string, "user": string, "progress": number, "insertTime": string, "startTime": string, "endTime": string, "error": { "errors": [ { "code": string, "location": string, "message": string } ] }, "warnings": [ { "code": enum, "message": string, "data": [ { "key": string, "value": string } ] } ], "httpErrorStatusCode": number, "httpErrorMessage": string, "selfLink": string, "region": string, "description": string, "kind": string }

JSON representation

{
  "id": string,
  "creationTimestamp": string,
  "name": string,
  "zone": string,
  "clientOperationId": string,
  "operationType": string,
  "targetLink": string,
  "targetId": string,
  "status": enum,
  "statusMessage": string,
  "user": string,
  "progress": number,
  "insertTime": string,
  "startTime": string,
  "endTime": string,
  "error": {
    "errors": [
      {
        "code": string,
        "location": string,
        "message": string
      }
    ]
  },
  "warnings": [
    {
      "code": enum,
      "message": string,
      "data": [
        {
          "key": string,
          "value": string
        }
      ]
    }
  ],
  "httpErrorStatusCode": number,
  "httpErrorMessage": string,
  "selfLink": string,
  "region": string,
  "description": string,
  "kind": string
}

Fields
`id`	`string (fixed64 format)` [Output Only] The unique identifier for the resource. This identifier is defined by the server.
`creationTimestamp`	`string` [Deprecated] This field is deprecated.
`name`	`string` [Output Only] Name of the resource.
`zone`	`string` [Output Only] The URL of the zone where the operation resides. Only available when performing per-zone operations. You must specify this field as part of the HTTP request URL. It is not settable as a field in the request body.
`clientOperationId`	`string` [Output Only] The value of `requestId` if you provided it in the request. Not present otherwise.
`operationType`	`string` [Output Only] The type of operation, such as `insert`, `update`, or `delete`, and so on.
`targetLink`	`string` [Output Only] The URL of the resource that the operation modifies. For operations related to creating a snapshot, this points to the persistent disk that the snapshot was created from.
`targetId`	`string (fixed64 format)` [Output Only] The unique target ID, which identifies a specific incarnation of the target resource.
`status`	`enum` [Output Only] The status of the operation, which can be one of the following: `PENDING`, `RUNNING`, or `DONE`.
`statusMessage`	`string` [Output Only] An optional textual description of the current status of the operation.
`user`	`string` [Output Only] User who requested the operation, for example: `user@example.com`.
`progress`	`number` [Output Only] An optional progress indicator that ranges from 0 to 100. There is no requirement that this be linear or support any granularity of operations. This should not be used to guess when the operation will be complete. This number should monotonically increase as the operation progresses.
`insertTime`	`string` [Output Only] The time that this operation was requested. This value is in RFC3339 text format.
`startTime`	`string` [Output Only] The time that this operation was started by the server. This value is in RFC3339 text format.
`endTime`	`string` [Output Only] The time that this operation was completed. This value is in RFC3339 text format.
`error`	`object` [Output Only] If errors are generated during processing of the operation, this field will be populated.
`error.errors[]`	`object` [Output Only] The array of errors encountered while processing this operation.
`error.errors[].code`	`string` [Output Only] The error type identifier for this error.
`error.errors[].location`	`string` [Output Only] Indicates the field in the request that caused the error. This property is optional.
`error.errors[].message`	`string` [Output Only] An optional, human-readable error message.
`warnings[]`	`object` [Output Only] If warning messages are generated during processing of the operation, this field will be populated.
`warnings[].code`	`enum` [Output Only] A warning code, if applicable. For example, Compute Engine returns `NO_RESULTS_ON_PAGE` if there are no results in the response.
`warnings[].message`	`string` [Output Only] A human-readable description of the warning code.
`warnings[].data[]`	`object` [Output Only] Metadata about this warning in `key: value` format. For example: "data": [ { "key": "scope", "value": "zones/us-east1-d" }
`warnings[].data[].key`	`string` [Output Only] A key that provides more detail on the warning being returned. For example, for warnings where there are no results in a list request for a particular zone, this key might be `scope` and the key value might be the zone name. Other examples might be a key indicating a deprecated resource and a suggested replacement, or a warning about invalid network settings (for example, if an instance attempts to perform IP forwarding but is not enabled for IP forwarding).
`warnings[].data[].value`	`string` [Output Only] A warning data value corresponding to the key.
`httpErrorStatusCode`	`number` [Output Only] If the operation fails, this field contains the HTTP error status code that was returned. For example, a `404` means the resource was not found.
`httpErrorMessage`	`string` [Output Only] If the operation fails, this field contains the HTTP error message that was returned, such as `NOT FOUND`.
`selfLink`	`string` [Output Only] Server-defined URL for the resource.
`region`	`string` [Output Only] The URL of the region where the operation resides. Only available when performing regional operations. You must specify this field as part of the HTTP request URL. It is not settable as a field in the request body.
`description`	`string` [Output Only] A textual description of the operation, which is set when the operation is created.
`kind`	`string` [Output Only] Type of the resource. Always `compute#operation` for Operation resources.

Authorization Scopes

Requires one of the following OAuth scopes:

https://www.googleapis.com/auth/compute
https://www.googleapis.com/auth/cloud-platform

For more information, see the Authentication Overview.

IAM Permissions

In addition to any permissions specified on the fields above, authorization requires one or more of the following Google IAM permissions:

compute.backendServices.create

Was this page helpful? Let us know how we did:

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 3.0 License, and code samples are licensed under the Apache 2.0 License. For details, see our Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated July 31, 2018.