# ResponseHeader

- [JSON representation](https://developers.google.com/pay/e-wallets-v1/payment-integrator-e-wallets-api/ResponseHeader#SCHEMA_REPRESENTATION)

Header object that is defined on all responses sent from the server.

| JSON representation |
|---|
| ``` { "responseTimestamp": string } ``` |

| Fields ||
|---|---|
| `responseTimestamp` | `string (https://developers.google.com/discovery/v1/type-format format)` **REQUIRED**: Timestamp of this response represented as milliseconds since epoch. The receiver should verify that this timestamp is ± 60s of 'now'. |