# Querying the Quotas of a Project

#### Function

This API is used to query the quotas of a specified project.

#### URI

- URI format

  GET /v3.0/OS-QUOTA/projects/{project_id}

- URI parameters

Parameter | Mandatory | Type | Description
--- | --- | --- | ---
project_id | Yes | String | ID of the project to query quotas.

#### Request Parameters

Table 1 Parameters in the request header
Parameter | Mandatory | Type | Description
--- | --- | --- | ---

X-Auth-Token

Yes

String

Provide either of the following tokens:

- Token with Security Administrator permissions
- IAM user token with the scope specified as the project you want to query

#### Response Parameters

Table 2 Parameters in the response body
Parameter | Type | Description
--- | --- | ---
quotas | object | Quota information of the domain.

Table 3 quotas
Parameter | Type | Description
--- | --- | ---
resources | Array of objects | Resource information.

Table 4 resources
Parameter | Type | Description
--- | --- | ---
max | Integer | Maximum quota.
min | Integer | Minimum quota.
quota | Integer | Current quota.
type | String | Quota type.
used | Integer | Used quota.

#### Example Request

    GET https://sample.domain.com/v3.0/OS-QUOTA/projects/{project_id}

#### Example Response

Status code: 200

The request is successful.

    {
      "quotas" : {
                    "resources" : [
                          {
                               "max" : 50,
                               "min" : 0,
                               "quota" : 10,
                               "type" : "project",
                               "used" : 4
                             }
                         ]
                   }
    }

Status code: 403

Access denied.

- Example 1

    {
       "error_msg" : "You are not authorized to perform the requested action.",
       "error_code" : "IAM.0002"
     }

- Example 2

    {
       "error_msg" : "Policy doesn't allow %(actions)s to be performed.",
       "error_code" : "IAM.0003"
     }

Status code: 404

The requested resource cannot be found.

    {
      "error_msg" : "Could not find %(target)s: %(target_id)s.",
      "error_code" : "IAM.0004"
    }

Status code: 500

Internal server error.

    {
      "error_msg" : "An unexpected error prevented the server from fulfilling your request.",
      "error_code" : "IAM.0006"
    }

#### Status Codes

Status Code | Description
--- | ---
200 | The request is successful.
401 | Authentication failed.
403 | Access denied.
404 | The requested resource cannot be found.
500 | Internal server error.

Parent topic: Project Management