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swap amount input

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This commit is contained in:
thloyi
2026-04-16 14:24:14 +08:00
parent ab0e87a48a
commit e761fd6f84
29 changed files with 1542 additions and 214 deletions
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78
raydiumcpmm.go
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@@ -4,9 +4,20 @@ import (
"bytes"
"fmt"
agbinary "github.com/gagliardetto/binary"
"github.com/shopspring/decimal"
)
type raydiumCPmmSwapBaseInputArgs struct {
AmountIn uint64
MinimumAmountOut uint64
}
type raydiumCPmmSwapBaseOutputArgs struct {
MaxAmountIn uint64
AmountOut uint64
}
func raydiumCPmmParser(tx *Tx, instruction Instruction, innerInstructions InnerInstructions, offset [2]uint) ([]Swap, [2]uint, error) {
if !tx.rawTx.accountList[instruction.ProgramIDIndex].Equals(raydiumCPmmProgramID) {
return nil, increaseOffset(offset), fmt.Errorf("raydiumCPmm instruction not found, offset, %d, %d", offset[0], offset[1])
@@ -327,6 +338,30 @@ func raydiumCPmmSwapParser(tx *Tx, instruction Instruction, innerInstructions In
}
var entryContract = tx.rawTx.accountList[tx.rawTx.Transaction.Message.Instructions[offset[0]].ProgramIDIndex]
discriminator := *(*[8]byte)(instruction.Data[:8])
var swapMode SwapMode
var fixedAmount decimal.Decimal
var limitAmount decimal.Decimal
switch discriminator {
case raydiumCPmmSwapBaseInputDiscriminator:
var args raydiumCPmmSwapBaseInputArgs
if err := agbinary.NewBorshDecoder(instruction.Data[8:]).Decode(&args); err != nil {
return nil, increaseOffset(offset), fmt.Errorf("failed to decode raydium cpmm swap_base_input args: %w", err)
}
swapMode = SwapModeExactIn
fixedAmount = decimal.NewFromUint64(args.AmountIn)
limitAmount = decimal.NewFromUint64(args.MinimumAmountOut)
case raydiumCPmmSwapBaseOutputDiscriminator:
var args raydiumCPmmSwapBaseOutputArgs
if err := agbinary.NewBorshDecoder(instruction.Data[8:]).Decode(&args); err != nil {
return nil, increaseOffset(offset), fmt.Errorf("failed to decode raydium cpmm swap_base_output args: %w", err)
}
swapMode = SwapModeExactOut
fixedAmount = decimal.NewFromUint64(args.AmountOut)
limitAmount = decimal.NewFromUint64(args.MaxAmountIn)
default:
return nil, increaseOffset(offset), InstructionIgnoredError
}
market := tx.rawTx.accountList[instruction.Accounts[3]]
// Get token accounts from instruction
tokenIn := tx.rawTx.accountList[instruction.Accounts[4]]
@@ -384,25 +419,26 @@ func raydiumCPmmSwapParser(tx *Tx, instruction Instruction, innerInstructions In
return nil, increaseOffset(offset), fmt.Errorf("failed to find token transfer in inner instructions")
}
offset[1] += 2
return []Swap{
{
Program: SolProgramRaydiumCPMM,
Event: "sell",
Pool: market,
BaseMint: inputTokenMint,
QuoteMint: outputTokenMint,
BaseTokenProgram: baseTokenBalance.ProgramIDAccount,
QuoteTokenProgram: quoteTokenBalance.ProgramIDAccount,
BaseMintDecimals: uint8(baseTokenBalance.UITokenAmount.Decimals),
QuoteMintDecimals: uint8(quoteTokenBalance.UITokenAmount.Decimals),
BaseReserve: baseReserve,
QuoteReserve: quoteReserve,
BaseAmount: baseAmount,
QuoteAmount: quoteAmount,
User: user,
UserBaseBalance: userBase,
UserQuoteBalance: userQuote,
EntryContract: entryContract,
},
}, offset, nil
swap := Swap{
Program: SolProgramRaydiumCPMM,
Event: "sell",
Pool: market,
BaseMint: inputTokenMint,
QuoteMint: outputTokenMint,
BaseTokenProgram: baseTokenBalance.ProgramIDAccount,
QuoteTokenProgram: quoteTokenBalance.ProgramIDAccount,
BaseMintDecimals: uint8(baseTokenBalance.UITokenAmount.Decimals),
QuoteMintDecimals: uint8(quoteTokenBalance.UITokenAmount.Decimals),
BaseReserve: baseReserve,
QuoteReserve: quoteReserve,
BaseAmount: baseAmount,
QuoteAmount: quoteAmount,
User: user,
UserBaseBalance: userBase,
UserQuoteBalance: userQuote,
EntryContract: entryContract,
}
swap.SetSwapAmountInfo(swapMode, fixedAmount, limitAmount)
return []Swap{swap}, offset, nil
}