2026-05-20 - Currency Project

Development - Izara Currency

old:

Service - Currencies

Overview

• Shared project where users can create currency tables used in Izara Market, Izara Supply, Izara Accounting etc
• A table is a list of conversions from one currency to another
• Currencies are not limited to standards, anyone can create any currency, so external projects must allow for table returning not found result
• Each currency table has RBAC

Currency Calcs

• Currency functions allow an extra layer on top of currency tables to calculate rate
• Can dig data from multiple tables
• Can perform functions on values to return single value
• Calcs are a handler service same as currencyTableStandard so requests get sent to currencyTable and Manager chooses if handled by tableStandard or calc

• Can request directly from currencyTable or currencyCalc

Oracles

• Digging currency rates from outside sources, eg central banks for accounting purposes
• Try using shared currencyTable structure, but have hardcoded per oracle flows that update it

Historical rates

• Changes need to be recorded in graph so can extract historical rates
• This might be required for eg accounting transactions that require a rate on a specific timestamp

notes

• maintaining historical rates may use large resources for eg oracles that update regularly
• perhaps build resourceUse for data/logic costs per currencyTable
• also have setting whether historical rates are stored per currencyTable