REST | API guest-cart returns Cart Id with quotes.

[DavidLambauer]

To use the Magento 2 Checkout, I am starting with getting a Cart Id. Due to that, I run the following request:

BASEURL/rest/V1/guest-carts

Preconditions

1. Magento EE 2.1.6

Steps to reproduce

1. Enter the following request in your terminal: curl --request POST --url BASE_URL/rest/V1/guest-carts

Expected result

1. 9cdb1f51fdc3bfa2313dae65eb231271

Actual result

1. "9cdb1f51fdc3bfa2313dae65eb231271"

In my opinion, there is no need to have the quotes around the result. Am I wrong?

[timneutkens]

Expecting all responses from the api being valid JSON. This is not a bug/issue. Example:

// throws error
JSON.parse('test')

// parses to a string
JSON.parse('"test"')

[magento-engcom-team]

@DavidLambauer Thanks for reporting this issue. Please check BASE_URL/swagger. Also You can check 'Magento\Quote\Api\GuestCartManagementInterface::createEmptyCart()', which is called upon BASE_URL/rest/V1/guest-carts. There You can see, that return type is string. Therefore "9cdb1f51fdc3bfa2313dae65eb231271" - is correct result.
Please reopen this issue as needed.