My requirement is to make the API calls from any third party app to salesforce using OAuth2.0
So, I created "Connected App" within Salesforce and from the generated "Consumer Key" and "Consumer Secret", I am making the calls from POSTMAN to Salesforce using OAuth2.0 authorization. And I have created two Rest APIs within Salesforce which will execute the calls and will send the data as response.
But my problem is, I would like to make the API calls only for REST API. I knew that there are some standard API calls within Salesforce to retrieve the data like
https://{domain}/services/data/v40.0/sobjects/Account/{ID}
But I would like to restrict all other API calls except the calls which are having "/apexrest/" within the URL.
Is it possible to do like this? Please advice.