[Backend] As a user, I can use the app without issues even if my token is expired

[markgravity]

Why

When a user finishes submitting their survey, we need to show a screen to thank them for spending their time doing the survey

Acceptance Criteria

Call POST /api/v1/oauth/token endpoint with the following body:

{
    "grant_type": "refresh_token",
    "refresh_token": "{{refresh_token}}"",
    "client_id": "{{client_id}}",
    "client_secret": "{{client_secret}}"
}

Resources

Refresh Token: https://nimblehq.postman.co/workspace/Nimble~9daf6b25-882e-4ad0-8299-95529e2883ff/request/11835486-5f7ef181-ab43-43c2-8683-8b487e07cc56