## Create an origin cloud region mapping

`client.Cache.OriginCloudRegions.New(ctx, params) (*OriginCloudRegionNewResponse, error)`

**post** `/zones/{zone_id}/cache/origin_cloud_regions`

Adds a single IP-to-cloud-region mapping for the zone. The IP must be a valid IPv4 or IPv6 address and is normalized to canonical form before storage (RFC 5952 for IPv6). Returns 400 (code 1145) if a mapping for that IP already exists — use PATCH to update an existing entry. The vendor and region are validated against the list from `GET /zones/{zone_id}/cache/origin_cloud_regions/supported_regions`.

### Parameters

- `params OriginCloudRegionNewParams`

  - `ZoneID param.Field[string]`

    Path param: Identifier.

  - `IP param.Field[string]`

    Body param: Origin IP address (IPv4 or IPv6). Normalized to canonical form before storage (RFC 5952 for IPv6).

  - `Region param.Field[string]`

    Body param: Cloud vendor region identifier. Must be a valid region for the specified vendor as returned by the supported_regions endpoint.

  - `Vendor param.Field[OriginCloudRegionNewParamsVendor]`

    Body param: Cloud vendor hosting the origin. Must be one of the supported vendors.

    - `const OriginCloudRegionNewParamsVendorAws OriginCloudRegionNewParamsVendor = "aws"`

    - `const OriginCloudRegionNewParamsVendorAzure OriginCloudRegionNewParamsVendor = "azure"`

    - `const OriginCloudRegionNewParamsVendorGcp OriginCloudRegionNewParamsVendor = "gcp"`

    - `const OriginCloudRegionNewParamsVendorOci OriginCloudRegionNewParamsVendor = "oci"`

### Returns

- `type OriginCloudRegionNewResponse struct{…}`

  Response result for a single origin cloud region mapping.

  - `ID OriginCloudRegionNewResponseID`

    - `const OriginCloudRegionNewResponseIDOriginPublicCloudRegion OriginCloudRegionNewResponseID = "origin_public_cloud_region"`

  - `Editable bool`

    Whether the setting can be modified by the current user.

  - `Value OriginCloudRegion`

    A single origin IP-to-cloud-region mapping.

    - `OriginIP string`

      The origin IP address (IPv4 or IPv6, canonicalized).

    - `Region string`

      Cloud vendor region identifier.

    - `Vendor OriginCloudRegionVendor`

      Cloud vendor hosting the origin.

      - `const OriginCloudRegionVendorAws OriginCloudRegionVendor = "aws"`

      - `const OriginCloudRegionVendorAzure OriginCloudRegionVendor = "azure"`

      - `const OriginCloudRegionVendorGcp OriginCloudRegionVendor = "gcp"`

      - `const OriginCloudRegionVendorOci OriginCloudRegionVendor = "oci"`

    - `ModifiedOn Time`

      Time this mapping was last modified.

  - `ModifiedOn Time`

    Time the mapping was last modified.

### Example

```go
package main

import (
  "context"
  "fmt"

  "github.com/cloudflare/cloudflare-go"
  "github.com/cloudflare/cloudflare-go/cache"
  "github.com/cloudflare/cloudflare-go/option"
)

func main() {
  client := cloudflare.NewClient(
    option.WithAPIToken("Sn3lZJTBX6kkg7OdcBUAxOO963GEIyGQqnFTOFYY"),
  )
  originCloudRegion, err := client.Cache.OriginCloudRegions.New(context.TODO(), cache.OriginCloudRegionNewParams{
    ZoneID: cloudflare.F("023e105f4ecef8ad9ca31a8372d0c353"),
    IP: cloudflare.F("192.0.2.1"),
    Region: cloudflare.F("us-east-1"),
    Vendor: cloudflare.F(cache.OriginCloudRegionNewParamsVendorAws),
  })
  if err != nil {
    panic(err.Error())
  }
  fmt.Printf("%+v\n", originCloudRegion.ID)
}
```

#### Response

```json
{
  "errors": [],
  "messages": [],
  "result": {
    "editable": true,
    "id": "origin_public_cloud_region",
    "modified_on": "2026-03-01T12:00:00Z",
    "value": {
      "modified_on": "2026-03-01T12:00:00Z",
      "origin-ip": "192.0.2.1",
      "region": "us-east-1",
      "vendor": "aws"
    }
  },
  "success": true
}
```