## List supported cloud vendors and regions

`client.cache.originCloudRegions.supportedRegions(OriginCloudRegionSupportedRegionsParamsparams, RequestOptionsoptions?): OriginCloudRegionSupportedRegionsResponse`

**get** `/zones/{zone_id}/cache/origin_cloud_regions/supported_regions`

Returns the cloud vendors and regions that are valid values for origin cloud region mappings. Each region includes the Tiered Cache upper-tier colocation codes that will be used for cache routing when a mapping targeting that region is active. Requires the zone to have Tiered Cache enabled.

### Parameters

- `params: OriginCloudRegionSupportedRegionsParams`

  - `zone_id: string`

    Identifier.

### Returns

- `OriginCloudRegionSupportedRegionsResponse`

  Cloud vendors and their supported regions for origin cloud region mappings.

  - `obtained_codes: boolean`

    Whether Cloudflare airport codes (IATA colo identifiers) were successfully resolved for the `upper_tier_colos` field on each region. When `false`, the `upper_tier_colos` arrays may be empty or incomplete.

  - `vendors: Record<string, Array<Vendor>>`

    Map of vendor name to list of supported regions.

    - `name: string`

      Cloud vendor region identifier.

    - `upper_tier_colos: Array<string>`

      Cloudflare Tiered Cache upper-tier colocation codes co-located with this cloud region. Requests from zones with a matching origin mapping will be routed through these colos.

### 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 response = await client.cache.originCloudRegions.supportedRegions({
  zone_id: '023e105f4ecef8ad9ca31a8372d0c353',
});

console.log(response.obtained_codes);
```

#### Response

```json
{
  "errors": [],
  "messages": [],
  "result": {
    "obtained_codes": true,
    "vendors": {
      "aws": [
        {
          "name": "us-east-1",
          "upper_tier_colos": [
            "IAD",
            "EWR"
          ]
        },
        {
          "name": "us-west-2",
          "upper_tier_colos": [
            "SEA"
          ]
        }
      ],
      "gcp": [
        {
          "name": "us-central1",
          "upper_tier_colos": [
            "ORD"
          ]
        }
      ]
    }
  },
  "success": true
}
```