---
title: "MetafieldInput"
description: "与折扣关联的其他元字段。"
doc_type: graphql
doc_category: adminGraphQL
doc_version: v20270301
source_url:
  html: 'https://developer.shopline.com/zh-hans-cn/docs/admin-graph-ql-api/common-objects/inputs/metafield-input'
  md: 'https://developer.shopline.com/zh-hans-cn/docs/admin-graph-ql-api/common-objects/inputs/metafield-input.md'
---
# MetafieldInput

与折扣关联的其他元字段。

- **API Version:** v20270301
- **API Type:** Admin
- **API Protocol:** GraphQL
- **Operation Type:** Input

## Type Signature

`MetafieldInput`

## Input Fields

* `type`

  [String](https://developer.shopline.com/zh-hans-cn/docs/admin-graph-ql-api/common/scalars/string.md)

  与折扣关联的其他元字段

* `value`

  [String](https://developer.shopline.com/zh-hans-cn/docs/admin-graph-ql-api/common/scalars/string.md)

  数据存储在元字段中。无论元字段的类型如何，始终存储为字符串。

* `key`

  [String](https://developer.shopline.com/zh-hans-cn/docs/admin-graph-ql-api/common/scalars/string.md)

  元字段在其命名空间内的唯一标识符

* `namespace`

  [String](https://developer.shopline.com/zh-hans-cn/docs/admin-graph-ql-api/common/scalars/string.md)

  元字段已关联或将关联的一组元字段的容器。与 key 一起使用来查找资源上的元字段，防止与具有相同 key 的其他元字段发生冲突

* `description`

  [String](https://developer.shopline.com/zh-hans-cn/docs/admin-graph-ql-api/common/scalars/string.md)

  元字段的描述

* `id`

  [ID](https://developer.shopline.com/zh-hans-cn/docs/admin-graph-ql-api/common/scalars/id.md)

  元字段的唯一 ID

## Schema Definition

```graphql
input MetafieldInput { 
	type: String
	value: String
	key: String
	namespace: String
	description: String
	id: ID 
}
```

## Input field from

* [DiscountAutomaticAppInput](https://developer.shopline.com/zh-hans-cn/docs/admin-graph-ql-api/discounts-and-marketing/inputs/discount-automatic-app-input.md).metafields

  与折扣关联的其他元字段

## Error Handling

关于更多通用错误码说明，参考：[状态码和错误码](https://developer.shopline.com/zh-hans-cn/docs/apps/api-instructions-for-use/graph-ql-admin-api/overview.md#status-and-error-codes)。