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docs(API): improve post /projects/{project_id}/keys/{id}/key_links documentation #1192

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b50e22b
feat(API): improve post /projects/{project_id}/keys/{id}/key_links do…
sbl Jun 15, 2026
d725329
docs(API): clean up post /projects/{project_id}/keys/{id}/key_links
sbl Jun 17, 2026
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101 changes: 89 additions & 12 deletions doc/compiled.json
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Original file line number Diff line number Diff line change
Expand Up @@ -30941,7 +30941,7 @@
},
"post": {
"summary": "Link child keys to a parent key",
"description": "Creates links between a given parent key and one or more child keys.",
"description": "Designates a translation key as a parent and links one or more child keys to it. Once linked, child keys receive a special reference marker as their translation content, signalling that their translations are derived from the parent. Use this when you want to group related keys — for example, a short label and its long-form variant — so translators see them in context together.\n\nPass an empty child_key_ids array to mark the key as a parent without linking any children yet. Both the parent key and every child key must belong to the main project; branch keys cannot participate in key links. A child key can have at most one parent at a time; attempting to link a child that already has a parent returns a 422 error with code CHILD_IS_ALREADY_LINKED. Parent and child key plurality must match — linking a plural child to a non-plural parent (or vice versa) also returns a 422.\n",
"operationId": "key_links/create",
"tags": [
"Linked Keys"
Expand Down Expand Up @@ -30969,52 +30969,129 @@
"title": "key_links/create/parameters",
"properties": {
"child_key_ids": {
"description": "The IDs of the child keys to link to the parent key. Can be left empty, to only mark the given translation-key as parent",
"description": "Codes of the keys to link as children. Pass an empty array to mark the parent key without linking any children.",
"type": "array",
"example": [
"child_key_id1",
"child_key_id2"
"ijkl9012mnop3456ijkl9012mnop3456",
"abcd1234efgh5678abcd1234efgh5678"
],
"items": {
"type": "string"
}
}
}
},
"example": {
"child_key_ids": [
"ijkl9012mnop3456ijkl9012mnop3456",
"abcd1234efgh5678abcd1234efgh5678"
]
}
}
}
},
"responses": {
"201": {
"description": "Created",
"description": "Key link reference created.",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/key_link"
},
"example": {
"created_at": "2024-03-15T10:22:00Z",
"updated_at": "2024-03-15T10:22:00Z",
"created_by": {
"id": "usr1a2b3c4d5e6f7a8b9c",
"username": "jane.doe",
"name": "Jane Doe",
"gravatar_uid": "a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4"
},
"updated_by": {
"id": "usr1a2b3c4d5e6f7a8b9c",
"username": "jane.doe",
"name": "Jane Doe",
"gravatar_uid": "a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4"
},
"account": {
"id": "acct9z8y7x6w5v4u3t2s",
"name": "Acme Translations",
"slug": "acme-translations",
"company": "Acme Corp",
"created_at": "2023-01-10T08:00:00Z",
"updated_at": "2023-06-01T12:00:00Z",
"company_logo_url": "https://example.com/logos/acme.png"
},
"parent": {
"id": "ijkl9012mnop3456ijkl9012",
"name": "home.hero.title",
"plural": false,
"use_ordinal_rules": false,
"data_type": "string",
"tags": [
"ui",
"homepage"
]
},
"children": [
{
"id": "ijkl9012mnop3456ijkl9012mnop3456",
"name": "home.hero.title_short",
"plural": false,
"use_ordinal_rules": false,
"data_type": "string",
"tags": [
"ui",
"homepage"
]
},
{
"id": "abcd1234efgh5678abcd1234efgh5678",
"name": "home.hero.title_long",
"plural": false,
"use_ordinal_rules": false,
"data_type": "string",
"tags": [
"ui",
"homepage"
]
}
]
}
}
}
},
"400": {
"$ref": "#/components/responses/400"
"$ref": "#/components/responses/400",
"description": "key_links_bad_request: The request body is malformed or a required parameter is missing."
},
"401": {
"$ref": "#/components/responses/401"
"$ref": "#/components/responses/401",
"description": "key_links_unauthorized: The access token is missing or invalid."
},
"403": {
"$ref": "#/components/responses/403",
"description": "Forbidden. Returned when the access token lacks the `write` scope or when the requesting user is not allowed to link this key."
"description": "key_links_forbidden: The access token lacks the write scope, the user does not have write permission on key links, or the parent key belongs to a branch project."
},
"404": {
"$ref": "#/components/responses/404"
"$ref": "#/components/responses/404",
"description": "key_links_not_found: The parent key does not exist in the specified project."
},
"422": {
"$ref": "#/components/responses/422"
"$ref": "#/components/responses/422",
"description": "key_links_unprocessable: The link could not be created. See the errors array for a specific code: PARENT_IS_ALREADY_CHILD, PARENT_IS_SAME_AS_CHILD, CHILD_IS_ALREADY_LINKED, CHILD_IS_ON_BRANCH, PARENT_IS_NOT_PLURAL, PARENT_IS_PLURAL."
},
"429": {
"$ref": "#/components/responses/429"
"$ref": "#/components/responses/429",
"description": "key_links_rate_limited: Too many requests. Wait until X-Rate-Limit-Reset before retrying."
}
}
},
"x-code-samples": [
{
"lang": "Curl",
"source": "curl -X POST \"https://api.phrase.com/v2/projects/:project_id/keys/:id/key_links\" \\\n -u USERNAME_OR_ACCESS_TOKEN \\\n -H \"Content-Type: application/json\" \\\n -d '{\"child_key_ids\": [\"ijkl9012mnop3456ijkl9012mnop3456\", \"abcd1234efgh5678abcd1234efgh5678\"]}'"
}
]
}
},
"/projects/{project_id}/keys/{id}/key_links/{child_key_id}": {
Expand Down
72 changes: 67 additions & 5 deletions paths/key_links/create.yaml
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Original file line number Diff line number Diff line change
@@ -1,6 +1,9 @@
---
summary: Link child keys to a parent key
description: Creates links between a given parent key and one or more child keys.
description: |
Designates a translation key as a parent and links one or more child keys to it. Once linked, child keys receive a special reference marker as their translation content, signalling that their translations are derived from the parent. Use this when you want to group related keys — for example, a short label and its long-form variant — so translators see them in context together.

Pass an empty child_key_ids array to mark the key as a parent without linking any children yet. Both the parent key and every child key must belong to the main project; branch keys cannot participate in key links. A child key can have at most one parent at a time; attempting to link a child that already has a parent returns a 422 error with code CHILD_IS_ALREADY_LINKED. Parent and child key plurality must match — linking a plural child to a non-plural parent (or vice versa) also returns a 422.
operationId: key_links/create
tags:
- Linked Keys
Expand All @@ -19,29 +22,88 @@ requestBody:
title: key_links/create/parameters
properties:
child_key_ids:
description: The IDs of the child keys to link to the parent key. Can be left empty, to only mark the given translation-key as parent
description: Codes of the keys to link as children. Pass an empty array to mark the parent key without linking any children.
type: array
example: ["child_key_id1", "child_key_id2"]
example:
- "ijkl9012mnop3456ijkl9012mnop3456"
- "abcd1234efgh5678abcd1234efgh5678"
items:
type: string
example:
child_key_ids:
- "ijkl9012mnop3456ijkl9012mnop3456"
- "abcd1234efgh5678abcd1234efgh5678"

responses:
'201':
description: Created
description: Key link reference created.
content:
application/json:
schema:
"$ref": "../../schemas/key_link.yaml#/key_link"
example:
created_at: "2024-03-15T10:22:00Z"
updated_at: "2024-03-15T10:22:00Z"
created_by:
id: "usr1a2b3c4d5e6f7a8b9c"
username: "jane.doe"
name: "Jane Doe"
gravatar_uid: "a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4"
updated_by:
id: "usr1a2b3c4d5e6f7a8b9c"
username: "jane.doe"
name: "Jane Doe"
gravatar_uid: "a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4"
account:
id: "acct9z8y7x6w5v4u3t2s"
name: "Acme Translations"
slug: "acme-translations"
company: "Acme Corp"
created_at: "2023-01-10T08:00:00Z"
updated_at: "2023-06-01T12:00:00Z"
company_logo_url: "https://example.com/logos/acme.png"
parent:
id: "ijkl9012mnop3456ijkl9012"
name: "home.hero.title"
plural: false
use_ordinal_rules: false
data_type: "string"
tags: ["ui", "homepage"]
children:
- id: "ijkl9012mnop3456ijkl9012mnop3456"
name: "home.hero.title_short"
plural: false
use_ordinal_rules: false
data_type: "string"
tags: ["ui", "homepage"]
- id: "abcd1234efgh5678abcd1234efgh5678"
name: "home.hero.title_long"
plural: false
use_ordinal_rules: false
data_type: "string"
tags: ["ui", "homepage"]
'400':
"$ref": "../../responses.yaml#/400"
description: "key_links_bad_request: The request body is malformed or a required parameter is missing."
'401':
"$ref": "../../responses.yaml#/401"
description: "key_links_unauthorized: The access token is missing or invalid."
'403':
"$ref": "../../responses.yaml#/403"
description: Forbidden. Returned when the access token lacks the `write` scope or when the requesting user is not allowed to link this key.
description: "key_links_forbidden: The access token lacks the write scope, the user does not have write permission on key links, or the parent key belongs to a branch project."
'404':
"$ref": "../../responses.yaml#/404"
description: "key_links_not_found: The parent key does not exist in the specified project."
'422':
"$ref": "../../responses.yaml#/422"
description: "key_links_unprocessable: The link could not be created. See the errors array for a specific code: PARENT_IS_ALREADY_CHILD, PARENT_IS_SAME_AS_CHILD, CHILD_IS_ALREADY_LINKED, CHILD_IS_ON_BRANCH, PARENT_IS_NOT_PLURAL, PARENT_IS_PLURAL."
'429':
"$ref": "../../responses.yaml#/429"
description: "key_links_rate_limited: Too many requests. Wait until X-Rate-Limit-Reset before retrying."
x-code-samples:
- lang: Curl
source: |-
curl -X POST "https://api.phrase.com/v2/projects/:project_id/keys/:id/key_links" \
-u USERNAME_OR_ACCESS_TOKEN \
-H "Content-Type: application/json" \
-d '{"child_key_ids": ["ijkl9012mnop3456ijkl9012mnop3456", "abcd1234efgh5678abcd1234efgh5678"]}'
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