# Export: Mermaid

> Export a data contract to a Mermaid diagram.

#  Export: Mermaid

Generates a [Mermaid](https://mermaid.js.org/) entity-relationship diagram of the contract's schemas.

{/* AUTOGENERATED EXAMPLE: do not edit by hand; regenerate with the update script. */}

```bash
datacontract export mermaid orders.odcs.yaml
```

Running this against the [example `orders` contract](https://github.com/datacontract/datacontract-cli/blob/main/examples/orders/orders.odcs.yaml) produces:

```mermaid
erDiagram
        "**orders**" {
        order_id🔑🔒 string
        order_timestamp date
        customer_id string
        order_total number
        status string
}
        "**line_items**" {
        line_item_id🔑🔒 string
        order_id string
        sku string
        quantity integer
}
```

{/* END AUTOGENERATED EXAMPLE */}

All options: **[`datacontract export mermaid`](../commands/export/mermaid.md)**.