Quickbooks API with UI to create invoice

- Pure php and Curl. - MYSQL I need a to integrate quickbooks API to share the "quickbooks customer ID" via API with another app. On the other app that I will call for now "XYZ" we also need to perform a couple of actions via API like creating and deleting a field that we will use to store "quickbooks customer ID". [login to view URL] Steps are: ** Step 1 Install php A page that opens OAuth at Quickbooks. Then: If the user is authenticated the OAuth redirect url will: - store the token into a mysql table for future usage (cronjob/Step 2) - create a custom field in table "organizations" in XYZ named "QuickbooksID" and get the id to use it at step 2. - create 2 links via API in the action menu of XYZ, one to the page that creates the new invoice on Quickbooks and one to the page that lists customer invoices. ** Step 2 Align data (production) Cronjob php script to align Quickbooks Customers IDs with XYZ: a) if customer does not exist with the same details (name and postcode, skip if no postcode is provided) create a new one one quickbooks and save the new ID in Quickbooks; (AND/OR) b) if customer exists on Quickbooks get the customer ID and store it in XYZ in "QuickbooksID" Please make 2 versions of the script for this job. - One for the whole db - One working only on the "created" field in onpipeline to sync every x minutes without loading all data. ** Step 3 Uninstall php This script will simply remove the custom field QuickbooksID on XYZ. Also removes the action links. The DEVELOPER shall create a quickbooks developer account and use the sandbox account and also an account on XYZ to connect via API. At the end , the scripts will be provided with both sandbox and production urls. Comments in your files are welcome! Chat with me for more details.