Update a project language

patch

https://api.lingohub.com/v2/branches/{branchId}/languages/{languageCode}

Partially updates the project language identified by the given language code (JSON merge-patch). Only fields present in the request body are changed; an omitted field is left unchanged and an explicit null clears file_slug or fallback_language_code. Returns the full updated language. Requires project-level languages management permission.

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Path Params

branchId

string

required

^prb_[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$

Unique identifier of the branch.

languageCode

string

required

Language code that uniquely identifies a locale.

Body Params

Request body to partially update a project language (PATCH, JSON merge-patch). Omitted fields are left unchanged. Both file_slug and fallback_language_code may be set to null to clear them.

file_slug

string | null

Custom slug used when generating resource file names for this language.

fallback_language_code

string | null

Language code used as a fallback when a translation is missing for this language.

Headers

If-Match

string

Optional precondition. Send the quoted ETag from a GET of this resource. The mutation only runs if a strong tag matches the current representation, checked under the write lock. A comma-separated list is allowed; '*' requires an existing representation. Weak tags never match. Omit this header for an unconditional write. For an action, use the ETag from GET of the target resource, without the action suffix. A stale tag returns 412; read the current state before retrying.

string

enum

Defaults to application/json

Generated from available response content types

Allowed:

content-type

string

enum

Defaults to application/json

Generated from available request content types

Allowed:

Responses

Language

Credentials

Bearer

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Response

Click Try It! to start a request and see the response here! Or choose an example:

application/json

application/problem+json

200Project language updated successfully.

400The request is malformed: an unknown or invalid query parameter, an invalid id in the path, or a body that is not valid JSON. code names the problem, errors the parameter or field.

401Invalid or missing API key.

403Insufficient permissions.

404Project language not found.

409Another language of the branch already uses this file slug (already_exists on file_slug). The branch has not completed initialization (branch_not_ready); poll its initialization_status before retrying.

412The current representation does not match If-Match (precondition_failed). No change was applied.

422Validation error (e.g. an invalid fallback language).

429The API rate limit was exceeded. Wait for the number of seconds given in the Retry-After header, then retry.

500An unexpected internal server error occurred.

503The service is temporarily unavailable. Retry after the number of seconds in the Retry-After header.