Fastly · Schema

Header

A header object manipulates HTTP headers during request and response processing at the edge.

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Properties

Name Type Description
name string The name of the header rule.
action string The action to take on the header.
type string The type of header manipulation.
dst string The name of the header to modify.
src string A variable expression used to derive the value.
regex string A regular expression used for regex-based actions.
substitution string The substitution string for regex-based actions.
priority integer The priority of the header rule.
ignore_if_set boolean Whether to skip the header rule if the header is already set.
request_condition string The name of the condition that triggers the header rule.
response_condition string The name of the condition that triggers the header rule on responses.
cache_condition string The name of the condition that triggers the header rule on cache.
View JSON Schema on GitHub

JSON Schema

fastly-header-schema.json Raw ↑
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/Header",
  "title": "Header",
  "type": "object",
  "description": "A header object manipulates HTTP headers during request and response processing at the edge.",
  "properties": {
    "name": {
      "type": "string",
      "description": "The name of the header rule."
    },
    "action": {
      "type": "string",
      "description": "The action to take on the header.",
      "enum": [
        "set",
        "append",
        "delete",
        "regex",
        "regex_repeat"
      ]
    },
    "type": {
      "type": "string",
      "description": "The type of header manipulation.",
      "enum": [
        "request",
        "fetch",
        "cache",
        "response"
      ]
    },
    "dst": {
      "type": "string",
      "description": "The name of the header to modify."
    },
    "src": {
      "type": "string",
      "description": "A variable expression used to derive the value."
    },
    "regex": {
      "type": "string",
      "description": "A regular expression used for regex-based actions."
    },
    "substitution": {
      "type": "string",
      "description": "The substitution string for regex-based actions."
    },
    "priority": {
      "type": "integer",
      "description": "The priority of the header rule.",
      "default": 100
    },
    "ignore_if_set": {
      "type": "boolean",
      "description": "Whether to skip the header rule if the header is already set."
    },
    "request_condition": {
      "type": "string",
      "description": "The name of the condition that triggers the header rule."
    },
    "response_condition": {
      "type": "string",
      "description": "The name of the condition that triggers the header rule on responses."
    },
    "cache_condition": {
      "type": "string",
      "description": "The name of the condition that triggers the header rule on cache."
    }
  }
}

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