Price Oracle - Price Oracle on top of the OpenST network
We caution that this is early stage software and under heavy ongoing development and improvement. Please report bugs and suggested improvements.
npm install @ostdotcom/ost-price-oracle --save
There is 1 parameter required while creating the Price Oracle implementer.
- Parameter is mandatory and it specifies the configuration strategy to be used. An example of the configStrategy is:
const configStrategy = {
"OST_UTILITY_GETH_RPC_PROVIDER": "http://127.0.0.1:8545",
"OST_UTILITY_GETH_WS_PROVIDER": "ws://127.0.0.1:18545",
"OST_UTILITY_DEPLOYER_ADDR": "0xc363957f8cc55b38a2650666c15b15a7be766810", // An Address having balance
"OST_UTILITY_DEPLOYER_PASSPHRASE": "testtest",
"OST_UTILITY_OPS_ADDR": "0xebbbb2f7dbdf04936ac3ae4b4006e27c07857afb", // An Address having balance
"OST_UTILITY_OPS_PASSPHRASE": "testtest",
"OST_CACHING_ENGINE": "none",
"OST_UTILITY_PRICE_ORACLES": {
"OST": {
"USD": "0x9F4E47FeBcE32F8d85026fcD212D48aDd09Ea679"
}
}
};
node tools/deploy/price_oracle.js OST USD 0x12A05F200
OST is baseCurrency
USD is quoteCurrency
OST_CACHING_ENGINE='none'
For details refer - [OpenSTFoundation/ost-price-oracle](https://github.com/OpenSTFoundation/ost-price-oracle)
const OSTPriceOracle = require('@ostdotcom/ost-price-oracle')
, priceOracleInstance = new OSTPriceOracle( configStrategy )
, priceOracle = priceOracleInstance.priceOracle
;
priceOracle.fixedPointIntegerPrice(0.5); // Returns Fixed Point Integer
priceOracle.setPrice(2000, 'OST','USD', 5000000000000000000, '0x12A05F200'); // Set Fixed point integer in Wei unit for a chain ID
priceOracle.getPrice(2000, 'OST', 'USD'); // Returns Fixed Point Integer Value for a chain ID
priceOracle.decimalPrice(2000, 'OST', 'USD'); // Returns Decimal Price for a chain ID