ECWID-174260 OE2: add preview tax invoice endpoint to ecwid-java-api-client

src/main/kotlin/com/ecwid/apiclient/v3/OrdersApiClient.kt

@@ -23,6 +23,7 @@ interface OrdersApiClient {
 	fun deleteOrderItemOptionFiles(request: OrderItemOptionFilesDeleteRequest): OrderItemOptionFileDeleteResult
 	fun searchDeletedOrders(request: DeletedOrdersSearchRequest): DeletedOrdersSearchResult
 	fun searchDeletedOrdersAsSequence(request: DeletedOrdersSearchRequest): Sequence<DeletedOrder>
+	fun previewOrdersTaxInvoice(request: OrderTaxInvoicePreviewRequest): String
 }
 
 @Suppress("EXTENSION_SHADOWED_BY_MEMBER")

src/main/kotlin/com/ecwid/apiclient/v3/dto/order/request/OrderTaxInvoicePreviewRequest.kt

@@ -0,0 +1,19 @@
+package com.ecwid.apiclient.v3.dto.order.request
+
+import com.ecwid.apiclient.v3.dto.ApiRequest
+import com.ecwid.apiclient.v3.httptransport.HttpBody
+import com.ecwid.apiclient.v3.impl.RequestInfo
+
+data class OrderTaxInvoicePreviewRequest(
+	val order: UpdatedOrder = UpdatedOrder()
+) : ApiRequest {
+	override fun toRequestInfo() = RequestInfo.createPostRequest(
+		pathSegments = listOf(
+			"orders",
+			"tax-invoice-preview",
+		),
+		httpBody = HttpBody.JsonBody(
+			obj = order
+		)
+	)
+}

src/main/kotlin/com/ecwid/apiclient/v3/impl/OrdersApiClientImpl.kt

@@ -75,4 +75,6 @@ internal class OrdersApiClientImpl(
 			offsetRequest = offsetRequest.copy(offset = offsetRequest.offset + searchResult.count)
 		} while (searchResult.count >= searchResult.limit)
 	}
+
+	override fun previewOrdersTaxInvoice(request: OrderTaxInvoicePreviewRequest) = apiClientHelper.makeStringResultRequest(request)
 }