Module tcmb_evds::evds_currency

provides only currency operations with methods of CurrencySeries and MultipleCurrencySeries.

This module built on two main structures and their methods operating currency services. The basic difference between these structures is number of currency types. CurrencySeries serves methods using a currency type. In contrast, MultipleCurrencySeries serves a method using more than a currency type to get currencies data.

CurrencySeries is composed of CurrencyCode, ExchangeType, DatePreference and ytl_mode to supply adequate information to make requesting data about a currency via related operational methods.

MultipleCurrencySeries is composed of CurrencyCodes, ExchangeType, DatePreference and ytl_mode to supply adequate information to make requesting data about given currencies via an operational method.

Usage schematic of operational functions and hierarchy of this module

• CurrencySeries -> get_data ( Evds ) or get_advanced_data ( Evds, AdvancedProcesses )

  CurrencySeries requires below struct as a difference

  • CurrencyCode

• MultipleCurrencySeries -> get_multiple_data ( Evds)

  MultipleCurrencySeries requires below struct as a difference:

  • CurrencyCodes

Both CurrencySeries and MultipleCurrencySeries requires common structures and a variable

• ExchangeType
• DatePreference
• ytl_mode: bool

Generic view of operational methods

• get_data

• get_advanced_data

• get_multiple_data

To use the operational methods, the related structures for the required operation should be built firstly. Then, the methods can be used with the common structure that is Evds.

More details of operational functions and their usage are included in their stages.

Modules

frequency_formulas

contains advanced currency operation requirements that are aggregation type, formula and data frequency included in AdvancedProcesses.

Structs

CurrencyCodes

supplies currency codes to generate multiple currency series for MultipleCurrencySeries.

CurrencySeries

supplies reliable and well structured required details about currency and date/s to the functions making single currency operations such as get_data and get_advanced_data.

ExchangeType

contains exchange types, which are selling and buying, to configure currency request.

MultipleCurrencySeries

supplies reliable and well structured required details about multiple currencies and date/s to the functions making multiple currency operations such as get_multiple_data.

Enums

CurrencyCode

supplies currency code option to the functions making single currency request.