# FieldReference

A reference to a field in a document, ex: `stats.operations`.

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

| Fields ||
|---|---|
| `fieldPath` | `string` A reference to a field in a document. Requires: - MUST be a dot-delimited (`.`) string of segments, where each segment conforms to `https://firebase.google.com/docs/firestore/reference/rest/v1/projects.databases.documents#Document.FIELDS.fields` limitations. |