How to create Invoice using Rest API Magento 2?

Magento 2 is robust,scalable and multi feature enable eCommerce platform. You can create Invoice of an Order Using an third party platform to Magento 2 by API request.

For Create order, Create order using Rest API Magento 2

For Create Shipment Using API, Create Shipment using Rest API Magento 2
Using below payload you can create Shipment of an order using any third party platform to Magento 2. you Just need to pass below payload in your request with POST data.

Request:
{YOUR_URL}/rest/V1/order/{order_id}/invoice

Type: POST

Body:

Pass order_item_id is your order item’s id don’t pass order id in order_item_id field. Pass order_id in reqeuest Url. You can create multiple request using pass multi array in items array.

Response:
10 (new Invoice id)

How to create shipment using Rest API Magento 2?

Magento 2 is robust, scalable and multi-feature enable eCommerce platform. You can create Shipment of an Order Using a third party platform to Magento 2 backend by API request.
Using below payload you can create Shipment of an order using any third party platform to Magento 2. you Just need to pass below payload in your request with POST data. Check for creating an order using API,  Create order using rest api in Magento 2

Request:
{YOUR_URL}/rest/V1/order/{order_id}/ship

Type:
POST

Body:

Pass order item id is your order item’s id dont pass order id. Pass order_id in request Url. You can create multiple request using pass multi-array in the items array.

Response:
10 (new shipment id)