Add grouped product with individual quantity to cart using rest api

[manish-sirvi]

Summary (*)

Currently i'm using POST /V1/carts/mine/items rest api endpoint to add products to carts.
So for grouped product if use the payload as mentioned in devdoc then this picks the default quantity which is used in adminhtml to add those products to cart.

So if i want to add custom quantity for each product to add to cart, i am unable to use "product_option" in payload for grouped product to specify individual quantity as i do for other product types.

Examples (*)

This is the payload mentioned on swagger for above api to add products to cart.

{
"cartItem": {
"item_id": 0,
"sku": "string",
"qty": 0,
"name": "string",
"price": 0,
"product_type": "string",
"quote_id": "string",
"product_option": {
"extension_attributes": {
"custom_options": [
{
"option_id": "string",
"option_value": "string",
"extension_attributes": {
"file_info": {
"base64_encoded_data": "string",
"type": "string",
"name": "string"
}
}
}
],
"bundle_options": [
{
"option_id": 0,
"option_qty": 0,
"option_selections": [
0
],
"extension_attributes": {}
}
],
"configurable_item_options": [
{
"option_id": "string",
"option_value": 0,
"extension_attributes": {}
}
],
"downloadable_option": {
"downloadable_links": [
0
]
},
"giftcard_item_option": {
"giftcard_amount": "string",
"custom_giftcard_amount": 0,
"giftcard_sender_name": "string",
"giftcard_recipient_name": "string",
"giftcard_sender_email": "string",
"giftcard_recipient_email": "string",
"giftcard_message": "string",
"extension_attributes": {}
}
}
},
"extension_attributes": {
"negotiable_quote_item": {
"item_id": 0,
"original_price": 0,
"original_tax_amount": 0,
"original_discount_amount": 0,
"extension_attributes": {}
}
}
}
}


How am i supposed to add grouped product with individual quantity specified for the products in group product.

Proposed solution

There should be another key in "product_option" for grouped products to specify quantity.
Well if i use PUT /V1/carts/mine/items endpoint to update the quantity for products using item id after adding them, then i get the desired result.
So this approach is difficult to follow on mobile end and is also very slow.

[m2-assistant]

Hi @manish-sirvi. Thank you for your report.
To help us process this issue please make sure that you provided the following information:

• Summary of the issue
• Information on your environment
• Steps to reproduce
• Expected and actual results

Please make sure that the issue is reproducible on the vanilla Magento instance following Steps to reproduce. To deploy vanilla Magento instance on our environment, please, add a comment to the issue:

@magento give me 2.4-develop instance - upcoming 2.4.x release

For more details, please, review the Magento Contributor Assistant documentation.

@manish-sirvi do you confirm that you were able to reproduce the issue on vanilla Magento instance following steps to reproduce?

• yes
• no

---

• Join Magento Community Engineering Slack and ask your questions in #github channel.

[m2-assistant]

Hi @engcom-Bravo. Thank you for working on this issue.
In order to make sure that issue has enough information and ready for development, please read and check the following instruction: 👇

• 1. Verify that issue has all the required information. (Preconditions, Steps to reproduce, Expected result, Actual result).

  Details

  If the issue has a valid description, the label Issue: Format is valid will be added to the issue automatically. Please, edit issue description if needed, until label Issue: Format is valid appears.

• 2. Verify that issue has a meaningful description and provides enough information to reproduce the issue. If the report is valid, add Issue: Clear Description label to the issue by yourself.

• 3. Add Component: XXXXX label(s) to the ticket, indicating the components it may be related to.

• 4. Verify that the issue is reproducible on 2.4-develop branch

  Details

  - Add the comment @magento give me 2.4-develop instance to deploy test instance on Magento infrastructure.
  - If the issue is reproducible on 2.4-develop branch, please, add the label Reproduced on 2.4.x.
  - If the issue is not reproducible, add your comment that issue is not reproducible and close the issue and stop verification process here!

• 5. Add label Issue: Confirmed once verification is complete.

• 6. Make sure that automatic system confirms that report has been added to the backlog.

[magento-engcom-team]

✅ Confirmed by @engcom-Bravo
Thank you for verifying the issue. Based on the provided information internal tickets MC-32042 were created

Issue Available: @engcom-Bravo, You will be automatically unassigned. Contributors/Maintainers can claim this issue to continue. To reclaim and continue work, reassign the ticket to yourself.