# @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.

```shell
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`.

```shell
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`.

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


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

@harperdb/status-check

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

status-check

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@harperdb/status-check

@harperdb/status-check

Usage

GET

POST

DELETE

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