Method: regions.list

Retrieves the list of region resources available to the specified project.

To decrease latency for this method, you can optionally omit any unneeded information from the response by using a field mask. This practice is especially recommended for unused quota information (the items.quotas field). To exclude one or more fields, set your request's fields query parameter to only include the fields you need. For example, to only include the id and selfLink fields, add the query parameter ?fields=id,selfLink to your request.

This method fails if the quota information is unavailable for the region and if the organization policy constraint compute.requireBasicQuotaInResponse is enforced. This constraint, when enforced, disables the fail-open behaviour when quota information (the items.quotas field) is unavailable for the region. It is recommended to use the default setting for the constraint unless your application requires the fail-closed behaviour for this method.

HTTP request

GET https://compute.googleapis.com/compute/v1/projects/{project}/regions

The URL uses gRPC Transcoding syntax.

Path parameters

Parameters
project

string

Project ID for this request.

Query parameters

Parameters
maxResults

integer (uint32 format)

The maximum number of results per page that should be returned. If the number of available results is larger than maxResults, Compute Engine returns a nextPageToken that can be used to get the next page of results in subsequent list requests. Acceptable values are 0 to 500, inclusive. (Default: 500)
pageToken

string

Specifies a page token to use. Set pageToken to the nextPageToken returned by a previous list request to get the next page of results.
filter

string

A filter expression that filters resources listed in the response. Most Compute resources support two types of filter expressions: expressions that support regular expressions and expressions that follow API improvement proposal AIP-160. These two types of filter expressions cannot be mixed in one request.

If you want to use AIP-160, your expression must specify the field name, an operator, and the value that you want to use for filtering. The value must be a string, a number, or a boolean. The operator must be either =, !=, >, <, <=, >= or :.

For example, if you are filtering Compute Engine instances, you can exclude instances named example-instance by specifying name != example-instance.

The :* comparison can be used to test whether a key has been defined. For example, to find all objects with owner label use:

labels.owner:*

You can also filter nested fields. For example, you could specify scheduling.automaticRestart = false to include instances only if they are not scheduled for automatic restarts. You can use filtering on nested fields to filter based on resource labels.

To filter on multiple expressions, provide each separate expression within parentheses. For example:

(scheduling.automaticRestart = true)
(cpuPlatform = "Intel Skylake")

By default, each expression is an AND expression. However, you can include AND and OR expressions explicitly. For example:

(cpuPlatform = "Intel Skylake") OR
(cpuPlatform = "Intel Broadwell") AND
(scheduling.automaticRestart = true)

If you want to use a regular expression, use the eq (equal) or ne (not equal) operator against a single un-parenthesized expression with or without quotes or against multiple parenthesized expressions. Examples:

fieldname eq unquoted literal fieldname eq 'single quoted literal' fieldname eq "double quoted literal" (fieldname1 eq literal) (fieldname2 ne "literal")

The literal value is interpreted as a regular expression using Google RE2 library syntax. The literal value must match the entire field.

For example, to filter for instances that do not end with name "instance", you would use name ne .*instance.

You cannot combine constraints on multiple fields using regular expressions.
orderBy

string

Sorts list results by a certain order. By default, results are returned in alphanumerical order based on the resource name.

You can also sort results in descending order based on the creation timestamp using orderBy="creationTimestamp desc". This sorts results based on the creationTimestamp field in reverse chronological order (newest result first). Use this to sort resources like operations so that the newest operation is returned first.

Currently, only sorting by name or creationTimestamp desc is supported.
returnPartialSuccess

boolean

Opt-in for partial success behavior which provides partial results in case of failure. The default value is false.

For example, when partial success behavior is enabled, aggregatedList for a single zone scope either returns all resources in the zone or no resources, with an error code.

Request body

The request body must be empty.

Response body

Contains a list of region resources.

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

JSON representation 
{
  "kind": string,
  "id": string,
  "items": [
    {
      "kind": string,
      "id": string,
      "creationTimestamp": string,
      "name": string,
      "description": string,
      "status": enum,
      "zones": [
        string
      ],
      "quotas": [
        {
          "metric": enum,
          "limit": number,
          "usage": number,
          "owner": string
        }
      ],
      "deprecated": {
        "state": enum,
        "replacement": string,
        "deprecated": string,
        "obsolete": string,
        "deleted": string
      },
      "selfLink": string,
      "supportsPzs": boolean,
      "quotaStatusWarning": {
        "code": enum,
        "message": string,
        "data": [
          {
            "key": string,
            "value": string
          }
        ]
      }
    }
  ],
  "nextPageToken": string,
  "selfLink": string,
  "warning": {
    "code": enum,
    "message": string,
    "data": [
      {
        "key": string,
        "value": string
      }
    ]
  }
}
Fields
kind

string

[Output Only] Type of resource. Always compute#regionList for lists of regions.
id

string

[Output Only] Unique identifier for the resource; defined by the server.
items[]

object

A list of Region resources.
items[].kind

string

[Output Only] Type of the resource. Always compute#region for regions.
items[].id

string (uint64 format)

[Output Only] The unique identifier for the resource. This identifier is defined by the server.
items[].creationTimestamp

string

[Output Only] Creation timestamp in RFC3339 text format.
items[].name

string

[Output Only] Name of the resource.
items[].description

string

[Output Only] Textual description of the resource.
items[].status

enum

[Output Only] Status of the region, either UP or DOWN.
items[].zones[]

string

[Output Only] A list of zones available in this region, in the form of resource URLs.
items[].quotas[]

object

[Output Only] Quotas assigned to this region.
items[].quotas[].metric

enum

[Output Only] Name of the quota metric.
items[].quotas[].limit

number

[Output Only] Quota limit for this metric.
items[].quotas[].usage

number

[Output Only] Current usage of this metric.
items[].quotas[].owner

string

[Output Only] Owning resource. This is the resource on which this quota is applied.
items[].deprecated

object

[Output Only] The deprecation status associated with this region.
items[].deprecated.state

enum

The deprecation state of this resource. This can be ACTIVE, DEPRECATED, OBSOLETE, or DELETED. Operations which communicate the end of life date for an image, can use ACTIVE. Operations which create a new resource using a DEPRECATED resource will return successfully, but with a warning indicating the deprecated resource and recommending its replacement. Operations which use OBSOLETE or DELETED resources will be rejected and result in an error.
items[].deprecated.replacement

string

The URL of the suggested replacement for a deprecated resource. The suggested replacement resource must be the same kind of resource as the deprecated resource.
items[].deprecated.deprecated

string

An optional RFC3339 timestamp on or after which the state of this resource is intended to change to DEPRECATED. This is only informational and the status will not change unless the client explicitly changes it.
items[].deprecated.obsolete

string

An optional RFC3339 timestamp on or after which the state of this resource is intended to change to OBSOLETE. This is only informational and the status will not change unless the client explicitly changes it.
items[].deprecated.deleted

string

An optional RFC3339 timestamp on or after which the state of this resource is intended to change to DELETED. This is only informational and the status will not change unless the client explicitly changes it.
items[].selfLink

string

[Output Only] Server-defined URL for the resource.
items[].supportsPzs

boolean

[Output Only] Reserved for future use.
items[].quotaStatusWarning

object

[Output Only] Warning of fetching the quotas field for this region. This field is populated only if fetching of the quotas field fails.
items[].quotaStatusWarning.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.
items[].quotaStatusWarning.message

string

[Output Only] A human-readable description of the warning code.
items[].quotaStatusWarning.data[]

object

[Output Only] Metadata about this warning in key: value format. For example: 

"data": [  {  "key": "scope",  "value": "zones/us-east1-d"  }
items[].quotaStatusWarning.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).
items[].quotaStatusWarning.data[].value

string

[Output Only] A warning data value corresponding to the key.
nextPageToken

string

[Output Only] This token allows you to get the next page of results for list requests. If the number of results is larger than maxResults, use the nextPageToken as a value for the query parameter pageToken in the next list request. Subsequent list requests will have their own nextPageToken to continue paging through the results.
warning

object

[Output Only] Informational warning message.
warning.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.
warning.message

string

[Output Only] A human-readable description of the warning code.
warning.data[]

object

[Output Only] Metadata about this warning in key: value format. For example: 

"data": [  {  "key": "scope",  "value": "zones/us-east1-d"  }
warning.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).
warning.data[].value

string

[Output Only] A warning data value corresponding to the key.

Authorization scopes

Requires one of the following OAuth scopes:

  • https://www.googleapis.com/auth/compute.readonly
  • 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 IAM permissions:

  • compute.regions.list

To find predefined roles that contain those permissions, see Compute Engine IAM Roles.