Make usage_data_api feature default enabled true

changelogs/unreleased/267114-enable-usage_data_api-by-default-feature.yml

+---
+title: Enable usage_data_api feature flag by default
+merge_request: 45004
+author:
+type: other

config/feature_flags/development/usage_data_api.yml

 ---
 name: usage_data_api
 introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/41301
-rollout_issue_url:
+rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/267114
 group: group::product analytics
 type: development
-default_enabled: false
+default_enabled: true

doc/development/product_analytics/usage_ping.md

@@ -387,7 +387,7 @@ Implemented using Redis methods [PFADD](https://redis.io/commands/pfadd) and [PF
 
    Increment unique users count using Redis HLL, for given event name.
 
-   Tracking events using the `UsageData` API requires the `usage_data_api` feature flag to be enabled, which is disabled by default.
+   Tracking events using the `UsageData` API requires the `usage_data_api` feature flag to be enabled, which is enabled by default.
 
    API requests are protected by checking for a valid CSRF token.
 

lib/api/usage_data.rb

@@ -6,7 +6,7 @@ module API
 
     namespace 'usage_data' do
       before do
-        not_found! unless Feature.enabled?(:usage_data_api)
+        not_found! unless Feature.enabled?(:usage_data_api, default_enabled: true)
         forbidden!('Invalid CSRF token is provided') unless verified_request?
       end
 

lib/gitlab/gon_helper.rb

@@ -47,7 +47,7 @@ module Gitlab
       push_frontend_feature_flag(:monaco_ci, default_enabled: true)
       push_frontend_feature_flag(:webperf_experiment, default_enabled: false)
       push_frontend_feature_flag(:snippets_binary_blob, default_enabled: false)
-      push_frontend_feature_flag(:usage_data_api, default_enabled: false)
+      push_frontend_feature_flag(:usage_data_api, default_enabled: true)
 
       # Startup CSS feature is a special one as it can be enabled by means of cookies and params
       gon.push({ features: { 'startupCss' => use_startup_css? } }, true)