# MigrationStateEvent

- [JSON representation](https://docs.cloud.google.com/datastore/docs/reference/admin/rest/Shared.Types/MigrationStateEvent#SCHEMA_REPRESENTATION)

An event signifying a change in state of a [migration from Cloud Datastore to Cloud Firestore in Datastore mode](https://cloud.google.com/datastore/docs/upgrade-to-firestore).

| JSON representation |
|---|
| ``` { "state": enum (`https://docs.cloud.google.com/datastore/docs/reference/admin/rest/Shared.Types/MigrationState`) } ``` |

| Fields ||
|---|---|
| `state` | ``enum (`https://docs.cloud.google.com/datastore/docs/reference/admin/rest/Shared.Types/MigrationState`)`` The new state of the migration. |