如何在 Rails 中存储客户端授权 Header -auth 令牌

Question

We need to be able to add custom headers to xAPI - ideally this will be a flexible solution that will require minimal updates for future customers. We can't store the authentication key in the database so we will need to find a solution that can reference a secret held in Vault ( https://www.vaultproject.io/ )

I want to do post and get request to the client using header:

--- Key and Secret ARE NOT required (determined by testing, waiting for confirmation) as we are given a static header value to use per instance.

--- This means that we have a permament Auth token sent in the Authorization header as 'Basic token>'. The token value is a concatenation of the key:secret that is then base64 encoded.

curl --request GET \
  --url https:client-url/xAPI/agents \
  --header 'Authorization: Basic ABCXYZ' \
  --header 'X-Experience-API-Version: 1.0.0'

My query is how do I store this authorisation header? shall i store it in database or as secrets in Vault (( https://www.vaultproject.io/ ) and use the key while doing the request.

As there might be multiple customer which might have same requirement or with multiple custom headers.