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

retrieveRecursiveBalance.swift

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

try RecursiveBalance.retrieve(
    session: session,
    entity: starkIndustries,
    account: cashAccount,
    callback: { (error: Error?, balance: RecursiveBalance?) 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: RecursiveBalance = balance else {
            // Should never happen, but we guard against nil like good
            // little programmers!
        }
        // Do cool stuff with the cashAccountBalance
        print("Cash account recursive balance: \(cashAccountBalance.magnitude)")
})

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

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