[add] API Response Watermark
This puts the current height and blocktime of the node in response headers for API endpoints. Clients should validate these before acting on any data in the response to account for stuck nodes, improper caching, etc.
As of 2024-05-14 a change has been implemented to enforce access token expiry. If you see higher numbers of HTTP 401 responses, please check tokens that may have expired. For more details, including how to mitigate disruption, please check our docs guide on Expired Access Tokens. If you have a support contract, you may open a support ticket for additional assistance.
This puts the current height and blocktime of the node in response headers for API endpoints. Clients should validate these before acting on any data in the response to account for stuck nodes, improper caching, etc.