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@brave-intl/currency
Advanced tools
a currency conversion ratio cache
npm install --save @brave-intl/currency
npm install
npm test
the following are valid ways to create a new currency instance
const instance1 = new Currency({ /* options */ })
const instance2 = Currency({ /* options */ })
the following will get you the global instance to be shared.
const globl = Currency.global()
ready(options) -> Promise
Returns a Promise that resolves when the oxr and binance data have been fetched, or immediately if there are already values.
update(options) -> Promise
Forcefully refreshes the prices.
base() -> String
returns the base currency against which all others are measured.
fiat(currency: String) -> BigNumber
fiat(currency: String) -> null
Returns the ratio of the passed fiat currency to the base provided by open exchange rates
. If the value does not exist (because ready has not finished or because the key is not found) null will be returned.
alt(currency: String) -> BigNumber
alt(currency: String) -> null
Returns the ratio of the passed alt currency to the base provided by binance
. If the value does not exist (because ready has not finished or because the key is not found) null will be returned.
ratio(A: String, B: String) -> BigNumber
ratio(A: String, B: String) -> null
Returns the ratio of B over A. An easy way to think about this is how many of, "With 1A
, I can get xB
s", where x is the result in the form of a BigNumber
Object. Null is returned if one of the currencies is not
has(currency: String) -> Boolean
Checks whether a value exists for the given currency.
lastUpdated() -> Date[ISO]
A Number representing a Date in ms denotes the last time the currencies were fetched. If 0
is returned, then the currencies have not yet finished their first fetching.
rates(base?: String) -> Object[BigNumber]
rates(base?: String) -> null
All altrates and fiatrates in one object with the values as BigNumber(s). Null is returned if the base, is not found.
FAQs
caches currency trade rates for synchronous access
We found that @brave-intl/currency demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 4 open source maintainers collaborating on the project.
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