fees

Documentation

Index

• Constants
• func CalculateFee(base, max, min uint64, count uint) uint64
• func SetComputeUnitPrice(tx *solana.Transaction, price ComputeUnitPrice) error
• type ComputeUnitPrice
  • func (val ComputeUnitPrice) Accounts() (accounts []*solana.AccountMeta)
  • func (val ComputeUnitPrice) Data() ([]byte, error)
  • func (val ComputeUnitPrice) ProgramID() solana.PublicKey
• type Estimator
  • func NewFixedPriceEstimator(cfg config.Config) (Estimator, error)
  • func NewRecentFeeEstimator(cfg config.Config) (Estimator, error)

Constants

const (
	// deprecated: will not support for building instruction
	Instruction_RequestUnitsDeprecated uint8 = iota

	// Request a specific transaction-wide program heap region size in bytes.
	// The value requested must be a multiple of 1024. This new heap region
	// size applies to each program executed in the transaction, including all
	// calls to CPIs.
	// note: uses ag_binary.Varuint32
	Instruction_RequestHeapFrame

	// Set a specific compute unit limit that the transaction is allowed to consume.
	// note: uses ag_binary.Varuint32
	Instruction_SetComputeUnitLimit

	// Set a compute unit price in "micro-lamports" to pay a higher transaction
	// fee for higher transaction prioritization.
	// note: uses ag_binary.Uint64
	Instruction_SetComputeUnitPrice
)

https://github.com/solana-labs/solana/blob/60858d043ca612334de300805d93ea3014e8ab37/sdk/src/compute_budget.rs#L25

const (
	COMPUTE_BUDGET_PROGRAM = "ComputeBudget111111111111111111111111111111"
)

Functions

func CalculateFee

func CalculateFee(base, max, min uint64, count uint) uint64

returns new fee based on number of times bumped

func SetComputeUnitPrice

func SetComputeUnitPrice(tx *solana.Transaction, price ComputeUnitPrice) error

modifies passed in tx to set compute unit price

Types

type ComputeUnitPrice

type ComputeUnitPrice uint64

https://docs.solana.com/developing/programming-model/runtime

func (ComputeUnitPrice) Accounts

func (val ComputeUnitPrice) Accounts() (accounts []*solana.AccountMeta)

No accounts needed

func (ComputeUnitPrice) Data

func (val ComputeUnitPrice) Data() ([]byte, error)

simple encoding into program expected format

func (ComputeUnitPrice) ProgramID

func (val ComputeUnitPrice) ProgramID() solana.PublicKey

returns the compute budget program

type Estimator

type Estimator interface {
	Start(context.Context) error
	Close() error
	BaseComputeUnitPrice() uint64
}

func NewFixedPriceEstimator

func NewFixedPriceEstimator(cfg config.Config) (Estimator, error)

func NewRecentFeeEstimator

func NewRecentFeeEstimator(cfg config.Config) (Estimator, error)