Retrieve a Balance in Amatino Swift - A double-entry accounting library for iOS & MacOS

retrieveBalance.swift

// Amatino Swift: https://github.com/amatino-code/amatino-swift
// Double entry accounting API

  try Balance.retrieve(
      session: session,
      entity: starkIndustries,
      account: cashAccount,
      callback: { (error: Error?, balance: Balance?) in
          guard error == nil else {
              // Handle error, e.g. 404 account not found, 403 you are not
              // authorised to view the account
          }
          guard let cashAccountBalance: Balance = balance else {
              // Should never happen, but we guard against nil like good
              // little programmers!
          }
          // Do cool stuff with the cashAccountBalance
          print("Cash account balance: \(cashAccountBalance.magnitude)")
  })

The parameters supplied to Balance.retrieve() come from the following examples:

• session - Create Session
• starkIndustries - Retrieve Entity
• cashAccount - Retrieve Account