Read a fallback chain

Requires current workspace membership. All workspace roles can read this resource, including when archived. Content is scoped to the explicit branch. Branch archives are read-only; current workspace roles still apply.

GET /api/v1/workspaces/{workspaceId}/projects/{projectId}/branches/{branchId}/languages/{locale}/fallback-chain

Operation: getFallbackChain · Download OpenAPI

Access

This operation does not use the panel session as its authentication mechanism. Follow the operation-specific checks described above.

session

{
  "type": "apiKey",
  "in": "cookie",
  "name": "__Host-localisync-session"
}

Parameters

Name	Location	Required	Description
workspaceId	path	Yes	See constraints below.
projectId	path	Yes	See constraints below.
locale	path	Yes	See constraints below.
branchId	path	Yes	Explicit branch UUID in this project. No implicit main selection.

workspaceId

{
  "type": "string",
  "format": "uuid"
}

projectId

{
  "type": "string",
  "format": "uuid"
}

locale

{
  "type": "string",
  "minLength": 2,
  "maxLength": 255
}

branchId

{
  "type": "string",
  "format": "uuid"
}

Request body

No request body.

Responses

200

Success

Response headers:

{
  "Cache-Control": {
    "schema": {
      "type": "string",
      "const": "no-store"
    }
  }
}

Content type: application/json Schema reference: FallbackChain.

Field	Type	Required	Constraints / description
locale	string	Yes	minLength: 2; maxLength: 255
active	boolean	Yes	—
chain	Array of string	Yes	—
version	integer	Yes	minimum: 1

{
  "$ref": "#/components/schemas/FallbackChain"
}

400

Invalid fields or unsupported locale

Response headers:

{
  "Cache-Control": {
    "schema": {
      "type": "string",
      "const": "no-store"
    }
  }
}

Content type: application/json Schema reference: Error.

Field	Type	Required	Constraints / description
error	unauthorized, forbidden, invalid_request, not_found, conflict, rate_limited, unavailable	Yes	—
message	string	Yes	—
requestId	string	No	—
details	object	No	—

{
  "$ref": "#/components/schemas/Error"
}

401

Authentication required

Response headers:

{
  "Cache-Control": {
    "schema": {
      "type": "string",
      "const": "no-store"
    }
  }
}

Content type: application/json Schema reference: Error.

Field	Type	Required	Constraints / description
error	unauthorized, forbidden, invalid_request, not_found, conflict, rate_limited, unavailable	Yes	—
message	string	Yes	—
requestId	string	No	—
details	object	No	—

{
  "$ref": "#/components/schemas/Error"
}

403

Insufficient role or invalid CSRF/Origin

Response headers:

{
  "Cache-Control": {
    "schema": {
      "type": "string",
      "const": "no-store"
    }
  }
}

Content type: application/json Schema reference: Error.

Field	Type	Required	Constraints / description
error	unauthorized, forbidden, invalid_request, not_found, conflict, rate_limited, unavailable	Yes	—
message	string	Yes	—
requestId	string	No	—
details	object	No	—

{
  "$ref": "#/components/schemas/Error"
}

404

Resource unavailable in the current workspace

Response headers:

{
  "Cache-Control": {
    "schema": {
      "type": "string",
      "const": "no-store"
    }
  }
}

Content type: application/json Schema reference: Error.

Field	Type	Required	Constraints / description
error	unauthorized, forbidden, invalid_request, not_found, conflict, rate_limited, unavailable	Yes	—
message	string	Yes	—
requestId	string	No	—
details	object	No	—

{
  "$ref": "#/components/schemas/Error"
}

409

Version, lifecycle, graph or idempotency conflict

Response headers:

{
  "Cache-Control": {
    "schema": {
      "type": "string",
      "const": "no-store"
    }
  }
}

Content type: application/json Schema reference: Error.

Field	Type	Required	Constraints / description
error	unauthorized, forbidden, invalid_request, not_found, conflict, rate_limited, unavailable	Yes	—
message	string	Yes	—
requestId	string	No	—
details	object	No	—

{
  "$ref": "#/components/schemas/Error"
}

429

Request limit reached

Response headers:

{
  "Cache-Control": {
    "schema": {
      "type": "string",
      "const": "no-store"
    }
  }
}

Content type: application/json

Field	Type	Required	Constraints / description
message	string	Yes	—
error	string	No	—
statusCode	integer	No	—

{
  "type": "object",
  "properties": {
    "message": {
      "type": "string"
    },
    "error": {
      "type": "string"
    },
    "statusCode": {
      "type": "integer"
    }
  },
  "required": [
    "message"
  ],
  "description": "Fastify route limits or the aggregate application limit may supply this response."
}

503

Dependency unavailable

Response headers:

{
  "Cache-Control": {
    "schema": {
      "type": "string",
      "const": "no-store"
    }
  }
}

Content type: application/json Schema reference: Error.

Field	Type	Required	Constraints / description
error	unauthorized, forbidden, invalid_request, not_found, conflict, rate_limited, unavailable	Yes	—
message	string	Yes	—
requestId	string	No	—
details	object	No	—

{
  "$ref": "#/components/schemas/Error"
}

Related guidance

Request errors and safe retries · Troubleshooting