Add DeleteHost func to service pkg (#2312)

server/service/client_hosts.go

@@ -2,6 +2,7 @@ package service
 
 import (
 	"encoding/json"
+	"fmt"
 	"net/http"
 
 	"github.com/pkg/errors"
@@ -61,3 +62,38 @@ func (c *Client) HostByIdentifier(identifier string) (*HostResponse, error) {
 
 	return responseBody.Host, nil
 }
+
+// DeleteHost deletes the host with the matching id.
+func (c *Client) DeleteHost(id uint) error {
+	verb := "DELETE"
+	path := fmt.Sprintf("/api/v1/kolide/hosts/%d", id)
+	response, err := c.AuthenticatedDo(verb, path, nil)
+	if err != nil {
+		return errors.Wrapf(err, "%s %s", verb, path)
+	}
+	defer response.Body.Close()
+
+	switch response.StatusCode {
+	case http.StatusNotFound:
+		return notFoundErr{}
+	}
+	if response.StatusCode != http.StatusOK {
+		return errors.Errorf(
+			"delete host received status %d %s",
+			response.StatusCode,
+			extractServerErrorText(response.Body),
+		)
+	}
+
+	var responseBody deleteHostResponse
+	err = json.NewDecoder(response.Body).Decode(&responseBody)
+	if err != nil {
+		return errors.Wrap(err, "decode delete host response")
+	}
+
+	if responseBody.Err != nil {
+		return errors.Errorf("delete host: %s", responseBody.Err)
+	}
+
+	return nil
+}