magento 2 how can i get invoice of order placed with rest api

[pratap_penmetsa]

I am developing application using React-native an Magento as backend 
How can i get invoice of order placed with rest api i tried like this can any one help me

[Manish Mittal]

Hello @pratap_penmetsa

are you using bundle products or parent products if yes this issue fixed in Magento 2.3 develop branch.

https://github.com/magento/magento2/issues/6988

[pratap_penmetsa]

@Manish Mittal   can u help to get invoice for orders
which rest api should i use can u specify.

[Manish Mittal]

@pratap_penmetsa

Please use below API

rest/V1/order/order_id/invoice

[pratap_penmetsa]

@Manish Mittal
I am using https://www.test.com/rest/V1/order/51/invoice. POST method.
51 is my order_id
I am sending body as below

{ "items": [ {"order_item_id": 51,"qty": 1} ] }

i am getting error response.
"message": "Invoice Document Validation Error(s):\nYou can't create an invoice without products.", what should i pass in body to generate invoice please help me. 

[Manish Mittal]

For your reference:

https://github.com/magento/magento2/issues/6988

Basically Magento has two different types of bundle products: dynamic and fixed. That's why I need to add clarification for Expected Result:
I) Bundle dynamic product:

1. request:
   { "items": [ {"order_item_id": (parent bundle order_item_id), "qty": 1} ] }
   response:
   {"message":"InvoiceDocument Validation Error(s):\nYou can't create an invoice without products."}
2. request:
   { "items": [ {"order_item_id": (child bundle order_item_id), "qty": 1} ] }
   response:
   partial id of created invoice

II) Bundle fixed product:

1. request:
   { "items": [ {"order_item_id": (child bundle order_item_id), "qty": 1} ] }
   response:
   {"message":"InvoiceDocument Validation Error(s):\nYou can't create an invoice without products."}
2. request:
   { "items": [ {"order_item_id": (parent bundle order_item_id), "qty": 1} ] }
   response:
   id of created invoice

[gelanivishal]

Hello @pratap_penmetsa,

Please below REST endpoints URL to get invoice data

Endpoint URL: http://magento.com/index.php/rest/V1/invoices/{id}
Request: GET
Header: Authorization bearer {access-token}}

I have also tried above Rest API, You can check result here https://www.screencast.com/t/8m6HdB5wl

Let me know if you have any trouble in it.

--
If my answer is useful, please Accept as Solution & give Kudos

[pratap_penmetsa]

@gelanivishal

i have tried in this way but i am getting error please help me.  51 is my order_id

[gelanivishal]

Hello @pratap_penmetsa,

I have used invoice ID not order ID. Does it make sense? - Let me know if you get issue after using invoice id.

--
If my answer is useful, please Accept as Solution & give Kudos

[pratap_penmetsa]

Thanks for your reply, actually i am new to magento i don't know any thing about it, i am react native developer i am using magento as backend, After order is placed i am getting order_id only in response i am not getting any kind of invoice_id in response, how can i get invoice_id