Changing request field type from `string` to `oneOf: string, number` shouldn't break
評估
研究方向
使用 base.yml 和 revision.yml,透過 openapi-diff base.yml revision.yml 重現該報告,然後追蹤針對 name 屬性的請求本文 schema 相容性處理。完成的標準是,將 integer 變更為包含 integer 和 string 的 oneOf 後,不再顯示為 breaking change。
由索引模型根據 Issue 內容生成。
描述
Describe the bug
In the request body, if you change the following field:
requestBody:
content:
application/json:
schema:
type: object
properties:
name:
type: integer
required:
- name
required: true
to:
requestBody:
content:
application/json:
schema:
type: object
properties:
name:
oneOf:
- type: integer
- type: string
required:
- name
required: true
Then openapi-diff reports this as a breaking change.
To Reproduce
base.yml
openapi: 3.0.1
info:
title: User Service
version: 1.0.0
paths:
/users:
post:
requestBody:
content:
application/json:
schema:
type: object
properties:
name:
type: integer
required:
- name
required: true
responses:
201:
description: Created
content:
application/json:
schema:
properties:
id:
type: integer
required:
- id
type: object
revision.yml
openapi: 3.0.1
info:
title: User Service
version: 1.0.0
paths:
/users:
post:
requestBody:
content:
application/json:
schema:
type: object
properties:
name:
oneOf:
- type: integer
- type: string
required:
- name
required: true
responses:
201:
description: Created
content:
application/json:
schema:
properties:
id:
type: integer
required:
- id
type: object
- Download the two files base.yml and revision.yml
- Run
openapi-diff base.yml revision.yml - Observe the following output:
==========================================================================
== API CHANGE LOG ==
==========================================================================
User Service
--------------------------------------------------------------------------
-- What's Changed --
--------------------------------------------------------------------------
- POST /users
Request:
- Changed application/json
Schema: Broken compatibility
Changed property type: name (integer -> object)
--------------------------------------------------------------------------
-- Result --
--------------------------------------------------------------------------
API changes broke backward compatibility
--------------------------------------------------------------------------
Expected behavior
openapi-diff shouldn't mark this as a breaking change. Actually, the request body should be considered as a contravariant contract: widening a field type isn't a breaking change.
- 主要語言
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從這裡開始
- 先讀完整個 Issue,再讀專案的貢獻指南。
- 在 Issue 下留言說明你要接手 —— 這能避免兩個人做同樣的事。
- Fork 儲存庫,在一個分支上完成修改。
- 送出 Pull Request,並在描述裡引用這個 Issue 編號。
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