In config/routes/api/v1.rb, you have :content_uploads nested under :repositories (which is in turn nested under organizations):

```ruby
  resources :organizations
    # ...

    resources :repositories
      # ...

      resources :content_uploads
```

Therefore, this route should be:

```
api :POST, "organizations/:organization_id/repositories/:repo_id/content_uploads", "Create an upload request"
```