Not able to place the order using paypal in magento 2 rest

Question

I am developing an e-commerce mobiloe application using magento 2 rest apis only.This is the flow for making the REST API calls for order placement.

Answer 1

Paypal Express payment method doesn't support online capturing. There is no way to get a full order creation flow like on Checkout via Magento API interface. It is impossible to change the order state and process payments. As a workaround try the following:

1. Create a custom payment method
2. Enable for REST API only(Not on website checkout page)
3. While making payment using rest api use this method (after successful payment using you android/ios SDK)
4. After placing the order make send transaction id(PAY-xxxxx) return by paypal sdk payment to save trasaction.(tell your server side tio implement this call).

I am writting a complete atrticle regarding this step by step. I will let you know when it is done.