We have a use case where we want to access wix-stores ‘create-order’ api from our service (outside wix using REST api). From the documentation we got to know that to get an access token, one must create an app in wix app market and install it in the site.
We want to know if there’s a way to get access token without creating an app or any other way to access wix REST api?
Hi there Ravi 
You can create your own REST APIs on your site and expose them via the http-functions , you’ll need to provide your own key to authenticate incoming requests to your site.
Thank you @ahmadnasriya for your response. I’ll surely check it out.
Is there no other way to directly access wix’s REST api from outside? (i.e, without creating wix app to get access token)
@ravihegde You’re not creating an app, you’re exposing your site’s functionalities, and the API key I was talking about is to authenticate the requests to prevent others from stealing your data.