---
title: "POST /v2/{+catalog}:setDefaultBranch"
method: POST
path: "/v2/{+catalog}:setDefaultBranch"
tags: ["projects"]
---

# POST /v2/{+catalog}:setDefaultBranch

`POST /v2/{+catalog}:setDefaultBranch`

Set a specified branch id as default branch. API methods such as SearchService.Search, ProductService.GetProduct, ProductService.ListProducts will treat requests using "default_branch" to the actual branch id set as default. For example, if `projects/*/locations/*/catalogs/*/branches/1` is set as default, setting SearchRequest.branch to `projects/*/locations/*/catalogs/*/branches/default_branch` is equivalent to setting SearchRequest.branch to `projects/*/locations/*/catalogs/*/branches/1`. Using multiple branches can be useful when developers would like to have a staging branch to test and verify for future usage. When it becomes ready, developers switch on the staging branch using this API while keeping using `projects/*/locations/*/catalogs/*/branches/default_branch` as SearchRequest.branch to route the traffic to this staging branch. CAUTION: If you have live predict/search traffic, switching the default branch could potentially cause outages if the ID space of the new branch is very different from the old one. More specifically: * PredictionService will only return product IDs from branch {newBranch}. * SearchService will only return product IDs from branch {newBranch} (if branch is not explicitly set). * UserEventService will only join events with products from branch {newBranch}.

## Path parameters

- `catalog` string, required

## Request body

- GoogleCloudRetailV2SetDefaultBranchRequest — Request message to set a specified branch as new default_branch.
  - `note` string — Some note on this request, this can be retrieved by CatalogService.GetDefaultBranch before next valid default branch set occurs. This field must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned.
  - `branchId` string — The final component of the resource name of a branch. This field must be one of "0", "1" or "2". Otherwise, an INVALID_ARGUMENT error is returned. If there are no sufficient active products in the targeted branch and force is not set, a FAILED_PRECONDITION error is returned.
  - `force` boolean — If set to true, it permits switching to a branch with branch_id even if it has no sufficient active products.

## Response `200`

Successful response

---

[API](https://skmtc.net/google/apis/retail.md) · [All operations](https://skmtc.net/google/apis/retail/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/google/retail/versions/146c67e59640/schema)