oracles

README

Oracles

Chainlink Oracles

m := NewChainlinkMap()
address := m.ChooseOracle(Selectors{Network: chainId.AvalancheChainName, Symbol: "avax"})
fmt.Println(address)
// Output:
// 0x0A77230d17318075983913bC2145DB16C7366156

Documentation

Index

• func GetPriceByChainlink(oracleAddr string, client bind.ContractBackend) (decimal.Decimal, error)
• type ChainlinkOracleMap
  • func NewChainlinkMap() *ChainlinkOracleMap
  • func (m *ChainlinkOracleMap) ChooseOracle(selectors Selectors) string
  • func (m *ChainlinkOracleMap) UpdateMap()
• type Selectors

Functions

func GetPriceByChainlink

func GetPriceByChainlink(oracleAddr string, client bind.ContractBackend) (decimal.Decimal, error)

Get the price by chainlink oracle.

Return value already divided by decimals.

Types

type ChainlinkOracleMap

type ChainlinkOracleMap struct {
	AddressMap map[string]map[string]string
	UpdateAt   time.Time
}

Complete map of chainlink oracles.

func NewChainlinkMap

func NewChainlinkMap() *ChainlinkOracleMap

func (*ChainlinkOracleMap) ChooseOracle

func (m *ChainlinkOracleMap) ChooseOracle(selectors Selectors) string

Get the specific oracle base on selectors. Symbol must not be empty.

If oracle not found, will return "".

func (*ChainlinkOracleMap) UpdateMap

func (m *ChainlinkOracleMap) UpdateMap()

Set the map to up to date status.

type Selectors

type Selectors struct {
	Network  string // Default: "ethereum".
	Currency string // Default: "USD". Can be "ETH", "AVAX", etc.
	Symbol   string // Must not be empty.
}

Used to choose oracle from the complete map.