gasfee

README

Type 2: Gas Refund

• triggered on UTC+0 specific HH:MM time everyday
• User will be refunded once only
• User to transfer more than a threshold of USDT amount from BSC or Ethereum
• Pick Min price from the previous day, No need for reducing factor.
  • the lowest BNB_USTD (or ETH_USTD) price
  • the highest FRA_USTD price
  • actions:
    1. get bnb/usdt, fra/usdt, btc/usdt, eth/usdt price from gate.io regularly (every 10 mins)
    2. every 24 hours get transfer to address value more than 50 usd
    3. send him XXX * price(bnb/usdt) / price(fra/usdt) FRA
    4. XXX = a. 1200000000000000 wei or a fixed wei b. dynamic gasfee * fixed wei

Documentation

Index

• Variables
• type Service
  • func New(c client.Client, conf *config.GasfeeService) (*Service, error)
  • func (s *Service) Close()
  • func (s *Service) Start()

Variables

var (
	ErrNotOverThreshold = errors.New("transaction value is not over the threshold")
	ErrAlreadyRefunded  = errors.New("address has been refunded already")
)

Types

type Service

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

func New

func New(c client.Client, conf *config.GasfeeService) (*Service, error)

func (*Service) Close

func (s *Service) Close()

Close stops the fork out goroutines from Start method

func (*Service) Start

func (s *Service) Start()

Start spawns two goroutines: 1. a crawler ---> crawling gate.io to get the usdt price 2. a refund ---> do the refunding action to recipients