Programming Examples for QuickBooks Online API?

Question: I’m am new to QuickBooks having only dealt with desktop version in the past.
Aside Delphi DLL examples about QuickBooks that I guess are only related to the desktop version of the accounting software only, is there any example regarding the QuickBooks online version?

Answer:

I’m looking at the QuickBooks API reference documentation, such as at https://developer.intuit.com/app/developer/qbo/docs/api/accounting/most-commonly-used/account#create-an-account

They provide raw HTTP request samples.
For example, to create an account:

    POST /v3/company//account
    Content type:application/json
    Production Base URL:https://quickbooks.api.intuit.com
    Sandbox Base URL:https://sandbox-quickbooks.api.intuit.com

    {
      "Name": "MyJobs_test",
      "AccountType": "Accounts Receivable"
    }

You can use Chilkat’s online tool at https://tools.chilkat.io/httpRequestToCode.cshtml
to generate code from a raw HTTP request. Just copy/paste the HTTP request into the online tool and generate.

Also:
1) The HTTP start line, which begins with the HTTP verb such as POST, GET, PUT, etc. should NOT have a blank line after it. The 1st header line should immediately follow.
2) There should be 1 blank line between the request header and request body (if the body exists). GET requests will typically not have a body.