services

package
v0.0.0-...-5ae7496 Latest Latest
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 Go to latest Published: Dec 6, 2020 License: MIT Imports: 17 Imported by: 0

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Index

Constants

This section is empty.

Variables

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var ErrAccountExists = errors.New("Account already Exists")
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var ErrAccountNotFound = errors.New("Account not found")
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var ErrBaseTokenNotFound = errors.New("BaseToken not found")
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var ErrNoAsset = errors.New("Asset not found")
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var ErrPairExists = errors.New("Pairs already exists")
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var ErrPairNotFound = errors.New("Pair not found")
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var ErrQuoteTokenInvalid = errors.New("Quote Token Invalid (not a quote)")
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var ErrQuoteTokenNotFound = errors.New("QuoteToken not found")
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var ErrTokenExists = errors.New("Token already exists")

Functions

This section is empty.

Types

type AccountService 

type AccountService struct {
	AccountDao interfaces.AccountDao
	TokenDao   interfaces.TokenDao
}

func NewAccountService 

func NewAccountService(
	AccountDao interfaces.AccountDao,
	TokenDao interfaces.TokenDao,
) *AccountService

NewAddressService returns a new instance of accountService

func (*AccountService) Create 

func (s *AccountService) Create(a *types.Account) error

func (*AccountService) FindOrCreate 

func (s *AccountService) FindOrCreate(addr string) (*types.Account, error)

func (*AccountService) GetAll 

func (s *AccountService) GetAll() ([]types.Account, error)

func (*AccountService) GetByAddress 

func (s *AccountService) GetByAddress(a string) (*types.Account, error)

func (*AccountService) GetByID 

func (s *AccountService) GetByID(id bson.ObjectId) (*types.Account, error)

func (*AccountService) GetTokenBalance 

func (s *AccountService) GetTokenBalance(owner string, token string) (*types.TokenBalance, error)

func (*AccountService) GetTokenBalances 

func (s *AccountService) GetTokenBalances(owner string) (map[string]*types.TokenBalance, error)

type InfoService 

type InfoService struct {
	// contains filtered or unexported fields
}

func NewInfoService 

func NewInfoService(
	pairDao interfaces.PairDao,
	tokenDao interfaces.TokenDao,
	tradeDao interfaces.TradeDao,
	orderDao interfaces.OrderDao,
	priceService interfaces.PriceService,
) *InfoService

func (*InfoService) GetExchangeData 

func (s *InfoService) GetExchangeData() (*types.ExchangeData, error)

func (*InfoService) GetExchangeStats 

func (s *InfoService) GetExchangeStats() (*types.ExchangeStats, error)

func (*InfoService) GetPairStats 

func (s *InfoService) GetPairStats() (*types.PairStats, error)

type OHLCVService 

type OHLCVService struct {
	// contains filtered or unexported fields
}

func NewOHLCVService 

func NewOHLCVService(TradeDao interfaces.TradeDao) *OHLCVService

func (*OHLCVService) GetOHLCV 

func (s *OHLCVService) GetOHLCV(pairs []types.PairAssets, duration int64, unit string, timeInterval ...int64) ([]*types.Tick, error)

GetOHLCV fetches OHLCV data using pairName: can be "" for fetching data for all pairs duration: in integer unit: sec,min,hour,day,week,month,yr timeInterval: 0-2 entries (0 argument: latest data,1st argument: from timestamp, 2nd argument: to timestamp)

func (*OHLCVService) Subscribe 

func (s *OHLCVService) Subscribe(conn *ws.Client, p *types.SubscriptionPayload)

Subscribe handles all the subscription messages for ticks corresponding to a pair It calls the corresponding channel's subscription method and sends trade history back on the connection

func (*OHLCVService) Unsubscribe 

func (s *OHLCVService) Unsubscribe(conn *ws.Client)

Unsubscribe handles all the unsubscription messages for ticks corresponding to a pair

func (*OHLCVService) UnsubscribeChannel 

func (s *OHLCVService) UnsubscribeChannel(conn *ws.Client, p *types.SubscriptionPayload)

Unsubscribe handles all the unsubscription messages for ticks corresponding to a pair

type OrderBookService 

type OrderBookService struct {
	// contains filtered or unexported fields
}

PairService struct with daos required, responsible for communicating with daos. PairService functions are responsible for interacting with daos and implements business logics.

func NewOrderBookService 

func NewOrderBookService(
	pairDao interfaces.PairDao,
	tokenDao interfaces.TokenDao,
	orderDao interfaces.OrderDao,
) *OrderBookService

NewPairService returns a new instance of balance service

func (*OrderBookService) GetOrderBook 

func (s *OrderBookService) GetOrderBook(bt, qt string) (map[string]interface{}, error)

GetOrderBook

func (*OrderBookService) GetRawOrderBook 

func (s *OrderBookService) GetRawOrderBook(bt, qt string) (*types.RawOrderBook, error)

GetRawOrderBook fetches complete orderbook from engine

func (*OrderBookService) SubscribeOrderBook 

func (s *OrderBookService) SubscribeOrderBook(c *ws.Client, bt, qt string)

SubscribeOrderBook is responsible for handling incoming orderbook subscription messages It makes an entry of connection in pairSocket corresponding to pair,unit and duration

func (*OrderBookService) SubscribeRawOrderBook 

func (s *OrderBookService) SubscribeRawOrderBook(c *ws.Client, bt, qt string)

SubscribeRawOrderBook is responsible for handling incoming orderbook subscription messages It makes an entry of connection in pairSocket corresponding to pair,unit and duration

func (*OrderBookService) UnsubscribeOrderBook 

func (s *OrderBookService) UnsubscribeOrderBook(c *ws.Client)

UnsubscribeOrderBook is responsible for handling incoming orderbook unsubscription messages

func (*OrderBookService) UnsubscribeOrderBookChannel 

func (s *OrderBookService) UnsubscribeOrderBookChannel(c *ws.Client, bt, qt string)

func (*OrderBookService) UnsubscribeRawOrderBook 

func (s *OrderBookService) UnsubscribeRawOrderBook(c *ws.Client)

UnsubscribeRawOrderBook is responsible for handling incoming orderbook unsubscription messages

func (*OrderBookService) UnsubscribeRawOrderBookChannel 

func (s *OrderBookService) UnsubscribeRawOrderBookChannel(c *ws.Client, bt, qt string)

type OrderService 

type OrderService struct {
	// contains filtered or unexported fields
}

OrderService

func NewOrderService 

func NewOrderService(
	orderDao interfaces.OrderDao,
	pairDao interfaces.PairDao,
	accountDao interfaces.AccountDao,
	tradeDao interfaces.TradeDao,
	validator interfaces.ValidatorService,
	broker *rabbitmq.Connection,
) *OrderService

NewOrderService returns a new instance of orderservice

func (*OrderService) AdjustBalancesForUncommittedTrades 

func (s *OrderService) AdjustBalancesForUncommittedTrades(address string, balances map[string]int64) map[string]int64

func (*OrderService) CancelExpiredOrders 

func (s *OrderService) CancelExpiredOrders()

func (*OrderService) CancelOrder 

func (s *OrderService) CancelOrder(oc *types.OrderCancel) error

CancelOrder handles the cancellation order requests. Only Orders which are OPEN or NEW i.e. Not yet filled/partially filled can be cancelled

func (*OrderService) CancelOrdersSignedByRevokedSigner 

func (s *OrderService) CancelOrdersSignedByRevokedSigner(address string, signer string)

func (*OrderService) CheckIfBalancesAreSufficientAndCancel 

func (s *OrderService) CheckIfBalancesAreSufficientAndCancel(address string, balances map[string]int64)

func (*OrderService) FixOrderStatus 

func (s *OrderService) FixOrderStatus(o *types.Order)

func (*OrderService) GetByHash 

func (s *OrderService) GetByHash(hash string) (*types.Order, error)

GetByHash fetches all trades corresponding to a trade hash

func (*OrderService) GetByHashes 

func (s *OrderService) GetByHashes(hashes []string) ([]*types.Order, error)

func (*OrderService) GetByID 

func (s *OrderService) GetByID(id bson.ObjectId) (*types.Order, error)

GetByID fetches the details of an order using order's mongo ID

func (*OrderService) GetByUserAddress 

func (s *OrderService) GetByUserAddress(addr string, limit ...int) ([]*types.Order, error)

GetByUserAddress fetches all the orders placed by passed user address

func (*OrderService) GetCurrentByUserAddress 

func (s *OrderService) GetCurrentByUserAddress(addr string, limit ...int) ([]*types.Order, error)

GetCurrentByUserAddress function fetches list of open/partial orders from order collection based on user address. Returns array of Order type struct

func (*OrderService) GetHistoryByUserAddress 

func (s *OrderService) GetHistoryByUserAddress(addr string, limit ...int) ([]*types.Order, error)

GetHistoryByUserAddress function fetches list of orders which are not in open/partial order status from order collection based on user address. Returns array of Order type struct

func (*OrderService) GetSenderAddresses 

func (s *OrderService) GetSenderAddresses(oc *types.OrderCancel) (string, string, error)

func (*OrderService) HandleEngineResponse 

func (s *OrderService) HandleEngineResponse(res *types.EngineResponse) error

HandleEngineResponse listens to messages incoming from the engine and handles websocket responses and database updates accordingly

func (*OrderService) HandleOperatorMessages 

func (s *OrderService) HandleOperatorMessages(msg *types.OperatorMessage) error

func (*OrderService) NewOrder 

func (s *OrderService) NewOrder(o *types.Order) (e error)

NewOrder validates if the passed order is valid or not based on user's available funds and order data. If valid: Order is inserted in DB with order status as new and order is publiched on rabbitmq queue for matching engine to process the order

type PairService 

type PairService struct {
	// contains filtered or unexported fields
}

PairService struct with daos required, responsible for communicating with daos. PairService functions are responsible for interacting with daos and implements business logics.

func NewPairService 

func NewPairService(
	pairDao interfaces.PairDao,
	tokenDao interfaces.TokenDao,
	tradeDao interfaces.TradeDao,
	orderDao interfaces.OrderDao,
	provider interfaces.ObyteProvider,
) *PairService

NewPairService returns a new instance of balance service

func (*PairService) Create 

func (s *PairService) Create(pair *types.Pair) error

Create function is responsible for inserting new pair in DB. It checks for existence of tokens in DB first

func (*PairService) CreatePairs 

func (s *PairService) CreatePairs(asset string) ([]*types.Pair, error)

func (*PairService) GetAll 

func (s *PairService) GetAll() ([]types.Pair, error)

GetAll is reponsible for fetching all the pairs in the DB

func (*PairService) GetAllExactTokenPairData 

func (s *PairService) GetAllExactTokenPairData() ([]*types.PairData, error)

func (*PairService) GetAllSimplifiedTokenPairData 

func (s *PairService) GetAllSimplifiedTokenPairData() ([]*types.SimplifiedPairAPIData, error)

func (*PairService) GetAllTokenPairData 

func (s *PairService) GetAllTokenPairData() ([]*types.PairAPIData, error)

Return a simplified version of the pair data

func (*PairService) GetByAsset 

func (s *PairService) GetByAsset(bt, qt string) (*types.Pair, error)

GetByAsset fetches details of a pair using asset IDs of its constituting tokens

func (*PairService) GetByID 

func (s *PairService) GetByID(id bson.ObjectId) (*types.Pair, error)

GetByID fetches details of a pair using its mongo ID

func (*PairService) GetListedPairs 

func (s *PairService) GetListedPairs() ([]types.Pair, error)

func (*PairService) GetTokenPairData 

func (s *PairService) GetTokenPairData(bt, qt string) ([]*types.Tick, error)

func (*PairService) GetUnlistedPairs 

func (s *PairService) GetUnlistedPairs() ([]types.Pair, error)

type PriceService 

type PriceService struct{}

func NewPriceService 

func NewPriceService() *PriceService

func (*PriceService) GetDollarMarketPrices 

func (s *PriceService) GetDollarMarketPrices(baseCurrencies []string) (map[string]float64, error)

func (*PriceService) GetMultipleMarketPrices 

func (s *PriceService) GetMultipleMarketPrices(baseCurrencies []string, quoteCurrencies []string) (map[string]map[string]float64, error)

type TokenService 

type TokenService struct {
	// contains filtered or unexported fields
}

TokenService struct with daos required, responsible for communicating with daos. TokenService functions are responsible for interacting with daos and implements business logics.

func NewTokenService 

func NewTokenService(tokenDao interfaces.TokenDao, provider interfaces.ObyteProvider) *TokenService

NewTokenService returns a new instance of TokenService

func (*TokenService) CheckByAssetOrSymbol 

func (s *TokenService) CheckByAssetOrSymbol(assetOrSymbol string) (*types.Token, error)

func (*TokenService) Create 

func (s *TokenService) Create(token *types.Token) error

Create inserts a new token into the database

func (*TokenService) GetAll 

func (s *TokenService) GetAll() ([]types.Token, error)

GetAll fetches all the tokens from db

func (*TokenService) GetBaseTokens 

func (s *TokenService) GetBaseTokens() ([]types.Token, error)

GetBase fetches all the quote tokens from db

func (*TokenService) GetByAsset 

func (s *TokenService) GetByAsset(asset string) (*types.Token, error)

GetByAsset fetches the detailed document of a token using its asset ID

func (*TokenService) GetByAssetOrSymbol 

func (s *TokenService) GetByAssetOrSymbol(assetOrSymbol string) (*types.Token, error)

GetByAssetOrSymbol fetches the detailed document of a token using its asset ID or symbol

func (*TokenService) GetByID 

func (s *TokenService) GetByID(id bson.ObjectId) (*types.Token, error)

GetByID fetches the detailed document of a token using its mongo ID

func (*TokenService) GetBySymbol 

func (s *TokenService) GetBySymbol(symbol string) (*types.Token, error)

GetBySymbol fetches the detailed document of a token using its symbol

func (*TokenService) GetListedBaseTokens 

func (s *TokenService) GetListedBaseTokens() ([]types.Token, error)

func (*TokenService) GetListedTokens 

func (s *TokenService) GetListedTokens() ([]types.Token, error)

func (*TokenService) GetQuoteTokens 

func (s *TokenService) GetQuoteTokens() ([]types.Token, error)

GetQuote fetches all the quote tokens from db

func (*TokenService) GetUnlistedTokens 

func (s *TokenService) GetUnlistedTokens() ([]types.Token, error)

type TradeService 

type TradeService struct {
	// contains filtered or unexported fields
}

TradeService struct with daos required, responsible for communicating with daos. TradeService functions are responsible for interacting with daos and implements business logics.

func NewTradeService 

func NewTradeService(TradeDao interfaces.TradeDao) *TradeService

NewTradeService returns a new instance of TradeService

func (*TradeService) GetAllTradesByPairAssets 

func (s *TradeService) GetAllTradesByPairAssets(bt, qt string) ([]*types.Trade, error)

GetByPairAssets fetches all the trades corresponding to a pair using pair's asset IDs

func (*TradeService) GetByHash 

func (s *TradeService) GetByHash(h string) (*types.Trade, error)

GetByHash fetches all trades corresponding to a trade hash

func (*TradeService) GetByHashes 

func (s *TradeService) GetByHashes(hashes []string) ([]*types.Trade, error)

func (*TradeService) GetByMakerOrderHash 

func (s *TradeService) GetByMakerOrderHash(h string) ([]*types.Trade, error)

func (*TradeService) GetByOrderHashes 

func (s *TradeService) GetByOrderHashes(hashes []string) ([]*types.Trade, error)

func (*TradeService) GetByPairName 

func (s *TradeService) GetByPairName(p string) ([]*types.Trade, error)

GetByPairName fetches all the trades corresponding to a pair using pair's name

func (*TradeService) GetByTakerOrderHash 

func (s *TradeService) GetByTakerOrderHash(h string) ([]*types.Trade, error)

func (*TradeService) GetByTriggerUnitHash 

func (s *TradeService) GetByTriggerUnitHash(h string) ([]*types.Trade, error)

func (*TradeService) GetByUserAddress 

func (s *TradeService) GetByUserAddress(a string) ([]*types.Trade, error)

GetByUserAddress fetches all the trades corresponding to a user address

func (*TradeService) GetSortedTrades 

func (s *TradeService) GetSortedTrades(bt, qt string, n int) ([]*types.Trade, error)

func (*TradeService) GetSortedTradesByUserAddress 

func (s *TradeService) GetSortedTradesByUserAddress(a string, limit ...int) ([]*types.Trade, error)

func (*TradeService) Subscribe 

func (s *TradeService) Subscribe(c *ws.Client, bt, qt string)

Subscribe

func (*TradeService) Unsubscribe 

func (s *TradeService) Unsubscribe(c *ws.Client)

Unsubscribe

func (*TradeService) UnsubscribeChannel 

func (s *TradeService) UnsubscribeChannel(c *ws.Client, bt, qt string)

Unsubscribe

func (*TradeService) UpdatePendingTrade 

func (s *TradeService) UpdatePendingTrade(t *types.Trade, txh string) (*types.Trade, error)

func (*TradeService) UpdateSuccessfulTrade 

func (s *TradeService) UpdateSuccessfulTrade(t *types.Trade) (*types.Trade, error)

func (*TradeService) UpdateTradeStatus 

func (s *TradeService) UpdateTradeStatus(t *types.Trade, status string) (*types.Trade, error)

func (*TradeService) UpdateTradeTxHash 

func (s *TradeService) UpdateTradeTxHash(tr *types.Trade, txh string) error

type ValidatorService 

type ValidatorService struct {
	// contains filtered or unexported fields
}

func NewValidatorService 

func NewValidatorService(
	obyteProvider interfaces.ObyteProvider,
	accountDao interfaces.AccountDao,
	orderDao interfaces.OrderDao,
	pairDao interfaces.PairDao,
) *ValidatorService

func (*ValidatorService) ValidateAvailableBalance 

func (s *ValidatorService) ValidateAvailableBalance(o *types.Order, uncommittedDeltas map[string]int64, balanceLockedInMemoryOrders int64) error

func (*ValidatorService) ValidateBalance 

func (s *ValidatorService) ValidateBalance(o *types.Order) error

func (*ValidatorService) ValidateOperatorAddress 

func (s *ValidatorService) ValidateOperatorAddress(o *types.Order) error

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