## Create Custom CSR

`client.customCsrs.create(CustomCsrCreateParamsparams, RequestOptionsoptions?): CustomCsrCreateResponse`

**post** `/{accounts_or_zones}/{account_or_zone_id}/custom_csrs`

Generate a new custom Certificate Signing Request (CSR) for an account or zone. Cloudflare generates and securely stores the private key associated with the CSR.

### Parameters

- `params: CustomCsrCreateParams`

  - `common_name: string`

    Body param: The common name (domain) for the CSR. Must be at most 64 characters.

  - `country: string`

    Body param: Two-letter ISO 3166-1 alpha-2 country code.

  - `locality: string`

    Body param: City or locality name.

  - `organization: string`

    Body param: Organization name.

  - `sans: Array<string>`

    Body param: Subject Alternative Names for the CSR. At least one SAN is required.

  - `state: string`

    Body param: State or province name.

  - `account_id?: string`

    Path param: The Account ID to use for this endpoint. Mutually exclusive with the Zone ID.

  - `zone_id?: string`

    Path param: The Zone ID to use for this endpoint. Mutually exclusive with the Account ID.

  - `description?: string`

    Body param: Optional description for the CSR.

  - `key_type?: "rsa2048" | "p256v1"`

    Body param: Key algorithm to use for the CSR. Defaults to rsa2048 if not specified.

    - `"rsa2048"`

    - `"p256v1"`

  - `name?: string`

    Body param: Human-readable name for the CSR.

  - `organizational_unit?: string`

    Body param: Organizational unit name.

### Returns

- `CustomCsrCreateResponse`

  A custom Certificate Signing Request (CSR).

  - `id: string`

    Custom CSR identifier tag.

  - `created_at: string`

    When the CSR was created.

  - `key_type: "rsa2048" | "p256v1"`

    The key algorithm used to generate the CSR.

    - `"rsa2048"`

    - `"p256v1"`

  - `account_tag?: string`

    Account identifier associated with this CSR.

  - `common_name?: string`

    The common name (domain) for the CSR.

  - `country?: string`

    Two-letter ISO 3166-1 alpha-2 country code.

  - `csr?: string`

    The PEM-encoded Certificate Signing Request.

  - `description?: string`

    Optional description for the CSR.

  - `locality?: string`

    City or locality name.

  - `name?: string`

    Human-readable name for the CSR.

  - `organization?: string`

    Organization name.

  - `organizational_unit?: string`

    Organizational unit name.

  - `sans?: Array<string>`

    Subject Alternative Names included in the CSR.

  - `state?: string`

    State or province name.

### Example

```node
import Cloudflare from 'cloudflare';

const client = new Cloudflare({
  apiToken: process.env['CLOUDFLARE_API_TOKEN'], // This is the default and can be omitted
});

const customCsr = await client.customCsrs.create({
  common_name: 'example.com',
  country: 'US',
  locality: 'San Francisco',
  organization: 'Cloudflare, Inc.',
  sans: ['example.com', 'www.example.com'],
  state: 'California',
  account_id: 'account_id',
});

console.log(customCsr.id);
```

#### Response

```json
{
  "errors": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "messages": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "success": true,
  "result": {
    "id": "7b163417-1d2b-4c84-a38a-2fb7a0cd7752",
    "created_at": "2024-01-15T10:30:00Z",
    "key_type": "rsa2048",
    "account_tag": "23e087bd19bc1d40ae95b6f297263ceb",
    "common_name": "example.com",
    "country": "US",
    "csr": "-----BEGIN CERTIFICATE REQUEST-----\nMIICYzCCAUsCAQAwHj...",
    "description": "CSR for example.com wildcard",
    "locality": "San Francisco",
    "name": "My Custom CSR",
    "organization": "Cloudflare, Inc.",
    "organizational_unit": "Engineering",
    "sans": [
      "example.com",
      "www.example.com"
    ],
    "state": "California"
  }
}
```