Prices contract

Prices

You can use this contract to get prices from Sanr oracles.

Used in Predictions contract

Methods

changePrice

function changePrice(bytes32 symbol, uint256 newPrice) external nonpayable

Saves new symbol price

Parameters

Name	Type	Description
symbol	bytes32	Symbol which price oracle want to save. Like 'BTC/USD'. In bytes32 'BTC/USD' is 0x4254432f55534400000000000000000000000000000000000000000000000000
newPrice	uint256	Symbol price *10^18. So if BTC/USD new price is 50000 newPrice should be 50000000000000000000000

changePrices

function changePrices(bytes32[] symbol, uint256[] newPrice) external nonpayable

Saves new symbols prices

Parameters

Name	Type	Description
symbol	bytes32[]	Symbols which prices oracle want to save. Like ['BTC/USD', 'BTC/ETH']. In bytes32 [0x4254432f55534400000000000000000000000000000000000000000000000000,0x4254432f45544800000000000000000000000000000000000000000000000000]
newPrice	uint256[]	Symbol prices *10^18. So if BTC/USD new price is 50000 and BTC/ETH price is 3000 newPrice should be [50000000000000000000000,3000000000000000000000]

currentPrice

function currentPrice(bytes32 symbol) external view returns (uint256 price, uint256 timestamp, uint256 index)

Get last saved symbol price

Parameters

Name	Type	Description
symbol	bytes32	Symbol which price you want to see. Like 'BTC/USD'. In bytes32 'BTC/USD' is 0x4254432f55534400000000000000000000000000000000000000000000000000

Returns

Name	Type	Description
price	uint256	Symbol price *10^18
timestamp	uint256	Timestamp when the price was saved to this contract
index	uint256	Total number of already saved prices for this symbol

currentPrices

function currentPrices(bytes32[] symbol) external view returns (uint256[] prices, uint256[] timestamps, uint256[] indexes)

Get last saved symbols prices

Parameters

Name	Type	Description
symbol	bytes32[]	Symbols which price you want to see. Like ['BTC/USD', 'BTC/ETH']. In bytes32 [0x4254432f55534400000000000000000000000000000000000000000000000000,0x4254432f45544800000000000000000000000000000000000000000000000000]

Returns

Name	Type	Description
prices	uint256[]	Symbols prices *10^18
timestamps	uint256[]	Timestamps when the prices was saved to this contract
indexes	uint256[]	Total number of already saved prices for these symbols

operators

function operators(address) external view returns (bool)

Shows is the address allowed to push prices to this contract

variable. changing in setOperator()

Parameters

Name	Type	Description
_0	address	undefined

Returns

Name	Type	Description
_0	bool	Bool that is true if the address allowed to push prices to this contract

owner

function owner() external view returns (address)

Returns the address of the current owner.

Returns

Name	Type	Description
_0	address	undefined

pricesByIndex

function pricesByIndex(bytes32, uint256) external view returns (uint256 timestamp, uint256 price)

Shows the symbol price *10^18 and block timestamp when the price was saved to this contract by the index which is the ordinal number of the saved prices for this symbol

variable. changing in changePrice(). used to get current price in currentPrice()

Parameters

Name	Type	Description
_0	bytes32	undefined
_1	uint256	undefined

Returns

Name	Type	Description
timestamp	uint256	undefined
price	uint256	undefined

pricesByIndexes

function pricesByIndexes(bytes32 symbol, uint256[] indexes) external view returns (struct Prices.Price[] prices)

Shows the symbol prices *10^18 and block timestamps when the prices was saved to this contract by the indexes which is the ordinal numbers of the saved prices for this symbol

Parameters

Name	Type	Description
symbol	bytes32	Symbol which price you want to see. Like 'BTC/USD'. In bytes32 'BTC/USD' is 0x4254432f55534400000000000000000000000000000000000000000000000000
indexes	uint256[]	Ordinal numbers of the saved prices for this symbol.

Returns

Name	Type	Description
prices	Prices.Price[]	Structs that contains symbol price *10^18 and block timestamp when the price was saved to this contract

renounceOwnership

function renounceOwnership() external nonpayable

Leaves the contract without owner. It will not be possible to call onlyOwner functions. Can only be called by the current owner. NOTE: Renouncing ownership will leave the contract without an owner, thereby disabling any functionality that is only available to the owner.

setOperator

function setOperator(address operator, bool authorized) external nonpayable

Approve or disapprove the operator address

only for contract owner

Parameters

Name	Type	Description
operator	address	The operator address
authorized	bool	Is this address should be allowed to push prices

totalPrices

function totalPrices(bytes32) external view returns (uint256)

Shows the total number symbol prices on this contract

variable. changing in changePrice(). used to get current price in currentPrice()

Parameters

Name	Type	Description
_0	bytes32	undefined

Returns

Name	Type	Description
_0	uint256	Total number of symbol prices on this contract

transferOwnership

function transferOwnership(address newOwner) external nonpayable

Transfers ownership of the contract to a new account (newOwner). Can only be called by the current owner.

Parameters

Name	Type	Description
newOwner	address	undefined

Events

OwnershipTransferred

event OwnershipTransferred(address indexed previousOwner, address indexed newOwner)

Parameters

Name	Type	Description
previousOwner indexed	address	undefined
newOwner indexed	address	undefined

SetOperator

event SetOperator(address indexed operator, bool indexed authorized)

This event is emitted when contract owner approve or disapprove the operator address

emitted in setOperator() function

Parameters

Name	Type	Description
operator indexed	address	The operator address
authorized indexed	bool	Is this address should be allowed to push prices

Errors

OwnableInvalidOwner

error OwnableInvalidOwner(address owner)

The owner is not a valid owner account. (eg. address(0))

Parameters

Name	Type	Description
owner	address	undefined

OwnableUnauthorizedAccount

error OwnableUnauthorizedAccount(address account)

The caller account is not authorized to perform an operation.

Parameters

Name	Type	Description
account	address	undefined