Device token api endpoint (#1)

* Added /device/token handler with associated business logic and storage tests.

* Use crypto rand for user code

Signed-off-by: justin-slowik <justin.slowik@thermofisher.com>

storage/kubernetes/storage.go

@@ -641,3 +641,11 @@ func (cli *client) CreateDeviceRequest(d storage.DeviceRequest) error {
 func (cli *client) CreateDeviceToken(t storage.DeviceToken) error {
 	return cli.post(resourceDeviceToken, cli.fromStorageDeviceToken(t))
 }
+
+func (cli *client) GetDeviceToken(deviceCode string) (storage.DeviceToken, error) {
+	var token DeviceToken
+	if err := cli.get(resourceDeviceToken, deviceCode, &token); err != nil {
+		return storage.DeviceToken{}, err
+	}
+	return toStorageDeviceToken(token), nil
+}

storage/kubernetes/types.go

@@ -739,3 +739,12 @@ func (cli *client) fromStorageDeviceToken(t storage.DeviceToken) DeviceToken {
 	}
 	return req
 }
+
+func toStorageDeviceToken(t DeviceToken) storage.DeviceToken {
+	return storage.DeviceToken{
+		DeviceCode: t.ObjectMeta.Name,
+		Status:     t.Status,
+		Token:      t.Token,
+		Expiry:     t.Expiry,
+	}
+}