@kamino-finance/kliquidity-sdk/src/whirlpools-client/instructions/increaseLiquidity.ts

Typescript SDK for interacting with the Kamino Liquidity (kliquidity) protocol

import { TransactionInstruction, PublicKey, AccountMeta } from "@solana/web3.js" // eslint-disable-line @typescript-eslint/no-unused-vars
import BN from "bn.js" // eslint-disable-line @typescript-eslint/no-unused-vars
import * as borsh from "@coral-xyz/borsh" // eslint-disable-line @typescript-eslint/no-unused-vars
import * as types from "../types" // eslint-disable-line @typescript-eslint/no-unused-vars
import { PROGRAM_ID } from "../programId"

export interface IncreaseLiquidityArgs {
  liquidityAmount: BN
  tokenMaxA: BN
  tokenMaxB: BN
}

export interface IncreaseLiquidityAccounts {
  whirlpool: PublicKey
  tokenProgram: PublicKey
  positionAuthority: PublicKey
  position: PublicKey
  positionTokenAccount: PublicKey
  tokenOwnerAccountA: PublicKey
  tokenOwnerAccountB: PublicKey
  tokenVaultA: PublicKey
  tokenVaultB: PublicKey
  tickArrayLower: PublicKey
  tickArrayUpper: PublicKey
}

export const layout = borsh.struct([
  borsh.u128("liquidityAmount"),
  borsh.u64("tokenMaxA"),
  borsh.u64("tokenMaxB"),
])

export function increaseLiquidity(
  args: IncreaseLiquidityArgs,
  accounts: IncreaseLiquidityAccounts,
  programId: PublicKey = PROGRAM_ID
) {
  const keys: Array<AccountMeta> = [
    { pubkey: accounts.whirlpool, isSigner: false, isWritable: true },
    { pubkey: accounts.tokenProgram, isSigner: false, isWritable: false },
    { pubkey: accounts.positionAuthority, isSigner: true, isWritable: false },
    { pubkey: accounts.position, isSigner: false, isWritable: true },
    {
      pubkey: accounts.positionTokenAccount,
      isSigner: false,
      isWritable: false,
    },
    { pubkey: accounts.tokenOwnerAccountA, isSigner: false, isWritable: true },
    { pubkey: accounts.tokenOwnerAccountB, isSigner: false, isWritable: true },
    { pubkey: accounts.tokenVaultA, isSigner: false, isWritable: true },
    { pubkey: accounts.tokenVaultB, isSigner: false, isWritable: true },
    { pubkey: accounts.tickArrayLower, isSigner: false, isWritable: true },
    { pubkey: accounts.tickArrayUpper, isSigner: false, isWritable: true },
  ]
  const identifier = Buffer.from([46, 156, 243, 118, 13, 205, 251, 178])
  const buffer = Buffer.alloc(1000)
  const len = layout.encode(
    {
      liquidityAmount: args.liquidityAmount,
      tokenMaxA: args.tokenMaxA,
      tokenMaxB: args.tokenMaxB,
    },
    buffer
  )
  const data = Buffer.concat([identifier, buffer]).slice(0, 8 + len)
  const ix = new TransactionInstruction({ keys, programId, data })
  return ix
}