> ## Documentation Index
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> Use this file to discover all available pages before exploring further.

# headerFooters.resolve

> Resolve the effective header/footer reference for a slot, walking the section inheritance chain.

## Summary

Resolve the effective header/footer reference for a slot, walking the section inheritance chain.

* Operation ID: `headerFooters.resolve`
* API member path: `editor.doc.headerFooters.resolve(...)`
* Mutates document: `no`
* Idempotency: `idempotent`
* Supports tracked mode: `no`
* Supports dry run: `no`
* Deterministic target resolution: `yes`

## Expected result

Returns a HeaderFooterResolveResult indicating explicit, inherited, or none status with the resolved refId.

## Input fields

| Field                      | Type                            | Required | Description                      |
| -------------------------- | ------------------------------- | -------- | -------------------------------- |
| `target`                   | object(kind="headerFooterSlot") | yes      |                                  |
| `target.headerFooterKind`  | enum                            | yes      | `"header"`, `"footer"`           |
| `target.kind`              | `"headerFooterSlot"`            | yes      | Constant: `"headerFooterSlot"`   |
| `target.section`           | SectionAddress                  | yes      | SectionAddress                   |
| `target.section.kind`      | `"section"`                     | yes      | Constant: `"section"`            |
| `target.section.sectionId` | string                          | yes      |                                  |
| `target.variant`           | enum                            | yes      | `"default"`, `"first"`, `"even"` |

### Example request

```json theme={null}
{
  "target": {
    "headerFooterKind": "header",
    "kind": "headerFooterSlot",
    "section": {
      "kind": "section",
      "sectionId": "example"
    },
    "variant": "default"
  }
}
```

## Output fields

### Variant 1 (section.kind="section")

| Field               | Type           | Required | Description            |
| ------------------- | -------------- | -------- | ---------------------- |
| `refId`             | string         | yes      |                        |
| `section`           | SectionAddress | yes      | SectionAddress         |
| `section.kind`      | `"section"`    | yes      | Constant: `"section"`  |
| `section.sectionId` | string         | yes      |                        |
| `status`            | `"explicit"`   | yes      | Constant: `"explicit"` |

### Variant 2 (resolvedFromSection.kind="section")

| Field                           | Type           | Required | Description                      |
| ------------------------------- | -------------- | -------- | -------------------------------- |
| `refId`                         | string         | yes      |                                  |
| `resolvedFromSection`           | SectionAddress | yes      | SectionAddress                   |
| `resolvedFromSection.kind`      | `"section"`    | yes      | Constant: `"section"`            |
| `resolvedFromSection.sectionId` | string         | yes      |                                  |
| `resolvedVariant`               | enum           | yes      | `"default"`, `"first"`, `"even"` |
| `status`                        | `"inherited"`  | yes      | Constant: `"inherited"`          |

### Variant 3 (status="none")

| Field    | Type     | Required | Description        |
| -------- | -------- | -------- | ------------------ |
| `status` | `"none"` | yes      | Constant: `"none"` |

### Example response

```json theme={null}
{
  "refId": "example",
  "section": {
    "kind": "section",
    "sectionId": "example"
  },
  "status": "explicit"
}
```

## Pre-apply throws

* `TARGET_NOT_FOUND`
* `INVALID_TARGET`
* `INVALID_INPUT`

## Non-applied failure codes

* None

## Raw schemas

<Accordion title="Raw input schema">
  ```json theme={null}
  {
    "additionalProperties": false,
    "properties": {
      "target": {
        "additionalProperties": false,
        "properties": {
          "headerFooterKind": {
            "enum": [
              "header",
              "footer"
            ]
          },
          "kind": {
            "const": "headerFooterSlot"
          },
          "section": {
            "$ref": "#/$defs/SectionAddress"
          },
          "variant": {
            "enum": [
              "default",
              "first",
              "even"
            ]
          }
        },
        "required": [
          "kind",
          "section",
          "headerFooterKind",
          "variant"
        ],
        "type": "object"
      }
    },
    "required": [
      "target"
    ],
    "type": "object"
  }
  ```
</Accordion>

<Accordion title="Raw output schema">
  ```json theme={null}
  {
    "oneOf": [
      {
        "additionalProperties": false,
        "properties": {
          "refId": {
            "type": "string"
          },
          "section": {
            "$ref": "#/$defs/SectionAddress"
          },
          "status": {
            "const": "explicit"
          }
        },
        "required": [
          "status",
          "refId",
          "section"
        ],
        "type": "object"
      },
      {
        "additionalProperties": false,
        "properties": {
          "refId": {
            "type": "string"
          },
          "resolvedFromSection": {
            "$ref": "#/$defs/SectionAddress"
          },
          "resolvedVariant": {
            "enum": [
              "default",
              "first",
              "even"
            ]
          },
          "status": {
            "const": "inherited"
          }
        },
        "required": [
          "status",
          "refId",
          "resolvedFromSection",
          "resolvedVariant"
        ],
        "type": "object"
      },
      {
        "additionalProperties": false,
        "properties": {
          "status": {
            "const": "none"
          }
        },
        "required": [
          "status"
        ],
        "type": "object"
      }
    ]
  }
  ```
</Accordion>