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@harperdb/status-check

v1.0.2

Published

a month ago

A Harper component for checking the status of the HarperDB instance.

0High
0Medium
0Low

@harperdb/status-check

This component enables controlling an instance's status based on a record in the database. This can be used by external systems to know the availability of a specific node.

The status of the node can be

retrieved with GET /status
set to 200 with POST /status
set to 404 with DELETE /status

NOTE: Replication for the data.hdb_status table should NOT be established. If the data replicates then all other nodes would be unintentionally set to offline/online.

Usage

This component exposes a route /status

GET

This method is unauthenticated and returns the current status and message.

curl http://localhost:9926/status

POST

This method is used to set the status of the node to 200. This method is authenticated and the user must either be a superuser or have write permissions to the table data.hdb_status.

curl -X POST http://localhost:9926/status --header "Authorization: Basic XXXXXXXXXXXX"

DELETE

This method is used to set the status of the node to 404. This method is authenticated and the user must either be a superuser or have write permissions to the table data.hdb_status.

curl -X DELETE http://localhost:9926/status --header "Authorization: Basic XXXXXXXXXXXX"