Add per-endpoint methods

[damonmcminn]

Endpoint methods

• Have implemented per-endpoint methods:
  • Xero[endpoint].find
  • Xero[endpoint].findOne
• find optionally accepts a plain filter string e.g. AmountDue > 1000 AND DueDate > DateTime(1970-1-1) and handles encoding and appending to Xero API path.
• findOne accepts a Xero ID e.g. xero.Invoices.findOne('foobar, callback) executes Xero.call with a path of /Invoices/foobar

Helper methods

• Helper methods can be found on Xero.helpers. Have initially implemented dateToXeroDateTimeString(date) which accepts a Date object and returns a string as expected by the Xero API e.g. DateTime(2015-5-26)

What is not included

More work is required for conditional endpoint methods i.e. there is no check for whether an endpoint accepts an id in GET requests so all endpoints receive the findOne method regardless.

Need to implement save method.

Tests

• npm test validates that the methods forward API calls to Xero.call
• npm run test-xero-api validates method integration with Xero API. Requires keys as outlined in L7-8 of test/xero-api.js

Cheers!

[atinux]

👍