***

title: "DefaultShippingLineAssignmentStrategy"
generated: true
---------------

<GenerationInfo sourceFile="packages/core/src/config/shipping-method/default-shipping-line-assignment-strategy.ts" sourceLine="16" packageName="@vendure/core" since="2.0.0" />

This is the default [ShippingLineAssignmentStrategy](/current/core/reference/typescript-api/shipping/shipping-line-assignment-strategy#shippinglineassignmentstrategy) which simply assigns all OrderLines to the
ShippingLine, and is suitable for the most common scenario of a single shipping method per Order.

```ts title="Signature"
class DefaultShippingLineAssignmentStrategy implements ShippingLineAssignmentStrategy {
    assignShippingLineToOrderLines(ctx: RequestContext, shippingLine: ShippingLine, order: Order) => OrderLine[] | Promise<OrderLine[]>;
}
```

* Implements: [`ShippingLineAssignmentStrategy`](/current/core/reference/typescript-api/shipping/shipping-line-assignment-strategy#shippinglineassignmentstrategy)

<div className="members-wrapper">

### assignShippingLineToOrderLines

\<MemberInfo kind="method" type={`(ctx: <a href='/current/core/reference/typescript-api/request/request-context#requestcontext'>RequestContext</a>, shippingLine: <a href='/current/core/reference/typescript-api/entities/shipping-line#shippingline'>ShippingLine</a>, order: <a href='/current/core/reference/typescript-api/entities/order#order'>Order</a>) => <a href='/current/core/reference/typescript-api/entities/order-line#orderline'>OrderLine</a>[] | Promise<<a href='/current/core/reference/typescript-api/entities/order-line#orderline'>OrderLine</a>[]>`}   />

</div>