Cors error while connecting sap build apps with sap commerce

[pandeysuresh06]

Hi Team I am getting cors error while connecting to sap build apps for direct rest API integration. Any help would be highly appreciated. I can see the request coming to ngrok but it is coming as OPTIONS not GET. I am passing these accept and authroization token also in request and calling get collection to fetch the orders for the customers.

[agpekka]

That options call is a standard preflight request made to resolve cors settings from the server:
https://developer.mozilla.org/en-US/docs/Glossary/Preflight_request
So you should setup cors handling properly to api server you are using.