Update Fallback Origin for Custom Hostnames

PUT/zones/{zone_id}/custom_hostnames/fallback_origin

Updates the fallback origin configuration for custom hostnames on a zone. Sets the default origin server for custom hostname traffic.

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

Accepted Permissions (at least one required)

SSL and Certificates Write

Path ParametersExpand Collapse

zone_id: string

Identifier.

maxLength32

Body ParametersJSONExpand Collapse

origin: string

Your origin hostname that requests to your custom hostnames will be sent to.

maxLength255

ReturnsExpand Collapse

errors: array of object { code, message, documentation_url, source }

code: number

minimum1000

message: string

documentation_url: optional string

source: optional object { pointer }

pointer: optional string

messages: array of object { code, message, documentation_url, source }

code: number

minimum1000

message: string

documentation_url: optional string

source: optional object { pointer }

pointer: optional string

success: true

Whether the API call was successful.

result: optional object { created_at, errors, origin, 2 more }

created_at: optional string

This is the time the fallback origin was created.

formatdate-time

errors: optional array of string

These are errors that were encountered while trying to activate a fallback origin.

origin: optional string

Your origin hostname that requests to your custom hostnames will be sent to.

maxLength255

status: optional "initializing" or "pending_deployment" or "pending_deletion" or 3 more

Status of the fallback origin's activation.

One of the following:

"initializing"

"pending_deployment"

"pending_deletion"

"active"

"deployment_timed_out"

"deletion_timed_out"

updated_at: optional string

This is the time the fallback origin was updated.

formatdate-time

Update Fallback Origin for Custom Hostnames

curl https://api.cloudflare.com/client/v4/zones/$ZONE_ID/custom_hostnames/fallback_origin \
    -X PUT \
    -H 'Content-Type: application/json' \
    -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
    -d '{
          "origin": "fallback.example.com"
        }'

{
  "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": {
    "created_at": "2019-10-28T18:11:23.37411Z",
    "errors": [
      "DNS records are not setup correctly. Origin should be a proxied A/AAAA/CNAME dns record"
    ],
    "origin": "fallback.example.com",
    "status": "pending_deployment",
    "updated_at": "2020-03-16T18:11:23.531995Z"
  }
}

Returns Examples

{
  "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": {
    "created_at": "2019-10-28T18:11:23.37411Z",
    "errors": [
      "DNS records are not setup correctly. Origin should be a proxied A/AAAA/CNAME dns record"
    ],
    "origin": "fallback.example.com",
    "status": "pending_deployment",
    "updated_at": "2020-03-16T18:11:23.531995Z"
  }
}