Sah::Schema::cryptoexchange::currency_pair - Currency pair, e.g. LTC/USD


This document describes version 0.015 of Sah::Schema::cryptoexchange::currency_pair (from Perl distribution Sah-Schemas-CryptoCurrency), released on 2020-03-08.


Using with Data::Sah:

 use Data::Sah qw(gen_validator);
 my $vdr = gen_validator("cryptoexchange::currency_pair*");
 say $vdr->($data) ? "valid" : "INVALID!";

 # Data::Sah can also create a validator to return error message, coerced value,
 # even validators in other languages like JavaScript, from the same schema.
 # See its documentation for more details.

Using in Rinci function metadata (to be used with Perinci::CmdLine, etc):

 package MyApp;
 our %SPEC;
 $SPEC{myfunc} = {
     v => 1.1,
     summary => 'Routine to do blah ...',
     args => {
         arg1 => {
             summary => 'The blah blah argument',
             schema => ['cryptoexchange::currency_pair*'],
 sub myfunc {
     my %args = @_;


Currency pair is string in the form of currency1/currency2, where currency1 is called the base currency and must be a known cryptocurrency code (e.g. LTC) while currency2 is the quote (or price) currency and must be a known fiat currency or a known cryptocurrency code (e.g. USD, or BTC).

Cryptocurrency code is checked against catalog in CryptoCurrency::Catalog, while fiat currency code is checked against Locale::Codes::Currency_Codes.

Will be normalized to uppercase.


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Source repository is at


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