--- title: Create or replace an origin cloud region mapping --- [Skip to content](#_top) [API Reference](https://developers.cloudflare.com/api/go) [Cache](https://developers.cloudflare.com/api/go/resources/cache) [Origin Cloud Regions](https://developers.cloudflare.com/api/go/resources/cache/subresources/origin_cloud_regions) Copy Markdown Open in **Claude**Open in **ChatGPT**Open in **Cursor** --- **Copy Markdown****View as Markdown** # Create or replace an origin cloud region mapping client.Cache.OriginCloudRegions.Update(ctx, originIP, params) (\*[OriginCloudRegionUpdateResponse](), error) PUT/zones/{zone\_id}/origin/cloud\_regions/{origin\_ip} Creates a new IP-to-cloud-region mapping or replaces the existing mapping for the specified IP. PUT is idempotent — calling it repeatedly with the same body produces the same result. The IP path parameter is normalized to canonical form (RFC 5952 for IPv6) before storage. The vendor and region are validated against the list from `GET /zones/{zone_id}/origin/cloud_regions/supported_regions`. Returns 400 if the `origin_ip` in the body does not match the URL path parameter. Returns 403 (code 1164) when the zone has reached the limit of 3,500 IP mappings. ##### Security
API Token The preferred authorization scheme for interacting with the Cloudflare API. Create a token. **Example:**Authorization: Bearer Sn3lZJTBX6kkg7OdcBUAxOO963GEIyGQqnFTOFYY
API Email + API Key The previous authorization scheme for interacting with the Cloudflare API, used in conjunction with a Global API key. **Example:**X-Auth-Email: user@example.com The previous authorization scheme for interacting with the Cloudflare API. When possible, use API tokens instead of Global API keys. **Example:**X-Auth-Key: 144c9defac04969c7bfad8efaa8ea194
##### ParametersExpand Collapse originIP string [Link to this property](<#(resource)%20cache.origin_cloud_regions%20%3E%20(method)%20update%20%3E%20(params)%20default%20%3E%20(param)%20origin_ip%20%3E%20(schema)>)
params OriginCloudRegionUpdateParams ZoneID param.Field\[string] Path param: Identifier. maxLength32 Link to this property OriginIP param.Field\[string] Body param: Origin IP address (IPv4 or IPv6). For the single PUT endpoint (PUT /origin/cloud_regions/{origin_ip}), this field must match the path parameter or the request will be rejected with a 400 error. For the batch PUT endpoint, this field identifies which mapping to upsert. Link to this property 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. Link to this property
Vendor param.Field\[OriginCloudRegionUpdateParamsVendor] Body param: Cloud vendor hosting the origin. Must be one of the supported vendors. const OriginCloudRegionUpdateParamsVendorAws OriginCloudRegionUpdateParamsVendor = "aws" Link to this property const OriginCloudRegionUpdateParamsVendorAzure OriginCloudRegionUpdateParamsVendor = "azure" Link to this property const OriginCloudRegionUpdateParamsVendorGcp OriginCloudRegionUpdateParamsVendor = "gcp" Link to this property const OriginCloudRegionUpdateParamsVendorOci OriginCloudRegionUpdateParamsVendor = "oci" Link to this property
Link to this property
[Link to this property](<#(resource)%20cache.origin_cloud_regions%20%3E%20(method)%20update%20%3E%20(params)%20default>) ##### ReturnsExpand Collapse
type OriginCloudRegionUpdateResponse struct{…} A single origin IP-to-cloud-region mapping. OriginIP string The origin IP address (IPv4 or IPv6). Normalized to canonical form (RFC 5952 for IPv6). Link to this property Region string Cloud vendor region identifier. Link to this property
Vendor OriginCloudRegionUpdateResponseVendor Cloud vendor hosting the origin. One of the following: const OriginCloudRegionUpdateResponseVendorAws OriginCloudRegionUpdateResponseVendor = "aws" Link to this property const OriginCloudRegionUpdateResponseVendorAzure OriginCloudRegionUpdateResponseVendor = "azure" Link to this property const OriginCloudRegionUpdateResponseVendorGcp OriginCloudRegionUpdateResponseVendor = "gcp" Link to this property const OriginCloudRegionUpdateResponseVendorOci OriginCloudRegionUpdateResponseVendor = "oci" Link to this property
Link to this property ModifiedOn TimeOptional Time this mapping was last modified. formatdate-time Link to this property
[Link to this property](<#(resource)%20cache.origin_cloud_regions%20%3E%20(model)%20OriginCloudRegionUpdateResponse%20%3E%20(schema)>) ### Create or replace an origin cloud region mapping Go HTTPTypeScriptPythonGoTerraform ``` 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.Update( context.TODO(), "192.0.2.1", cache.OriginCloudRegionUpdateParams{ ZoneID: cloudflare.F("023e105f4ecef8ad9ca31a8372d0c353"), OriginIP: cloudflare.F("192.0.2.1"), Region: cloudflare.F("us-east-1"), Vendor: cloudflare.F(cache.OriginCloudRegionUpdateParamsVendorAws), }, ) if err != nil { panic(err.Error()) } fmt.Printf("%+v\n", originCloudRegion.OriginIP) } ``` 200 example 4XX example 4XX example 4XX example ``` { "errors": [], "messages": [], "result": { "modified_on": "2026-03-01T12:00:00Z", "origin_ip": "192.0.2.1", "region": "us-east-1", "vendor": "aws" }, "success": true } ``` ``` { "errors": [ { "code": 1157, "message": "The vendor provided doesn't exist or the region provided does not exist for the specified cloud vendor" } ], "messages": [], "result": null, "success": false } ``` ``` { "errors": [ { "code": 1146, "message": "body origin_ip does not match URL" } ], "messages": [], "result": null, "success": false } ``` ``` { "errors": [ { "code": 1164, "message": "Maximum number of IP mappings configured for zone." } ], "messages": [], "result": null, "success": false } ``` ##### Returns Examples 200 example 4XX example 4XX example 4XX example ``` { "errors": [], "messages": [], "result": { "modified_on": "2026-03-01T12:00:00Z", "origin_ip": "192.0.2.1", "region": "us-east-1", "vendor": "aws" }, "success": true } ``` ``` { "errors": [ { "code": 1157, "message": "The vendor provided doesn't exist or the region provided does not exist for the specified cloud vendor" } ], "messages": [], "result": null, "success": false } ``` ``` { "errors": [ { "code": 1146, "message": "body origin_ip does not match URL" } ], "messages": [], "result": null, "success": false } ``` ``` { "errors": [ { "code": 1164, "message": "Maximum number of IP mappings configured for zone." } ], "messages": [], "result": null, "success": false } ```