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@kamino-finance/klend-sdk

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Typescript SDK for interacting with the Kamino Lending (klend) protocol

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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 RepayAndWithdrawAndRedeemV2Args { repayAmount: BN withdrawCollateralAmount: BN } export interface RepayAndWithdrawAndRedeemV2Accounts { repayAndWithdrawAccounts: { repayAccounts: { owner: PublicKey obligation: PublicKey lendingMarket: PublicKey repayReserve: PublicKey reserveLiquidityMint: PublicKey reserveDestinationLiquidity: PublicKey userSourceLiquidity: PublicKey tokenProgram: PublicKey instructionSysvarAccount: PublicKey } withdrawAccounts: { owner: PublicKey obligation: PublicKey lendingMarket: PublicKey lendingMarketAuthority: PublicKey withdrawReserve: PublicKey reserveLiquidityMint: PublicKey reserveSourceCollateral: PublicKey reserveCollateralMint: PublicKey reserveLiquiditySupply: PublicKey userDestinationLiquidity: PublicKey placeholderUserDestinationCollateral: PublicKey collateralTokenProgram: PublicKey liquidityTokenProgram: PublicKey instructionSysvarAccount: PublicKey } } collateralFarmsAccounts: { obligationFarmUserState: PublicKey reserveFarmState: PublicKey } debtFarmsAccounts: { obligationFarmUserState: PublicKey reserveFarmState: PublicKey } farmsProgram: PublicKey } export const layout = borsh.struct([ borsh.u64("repayAmount"), borsh.u64("withdrawCollateralAmount"), ]) export function repayAndWithdrawAndRedeemV2( args: RepayAndWithdrawAndRedeemV2Args, accounts: RepayAndWithdrawAndRedeemV2Accounts, programId: PublicKey = PROGRAM_ID ) { const keys: Array<AccountMeta> = [ { pubkey: accounts.repayAndWithdrawAccounts.repayAccounts.owner, isSigner: true, isWritable: false, }, { pubkey: accounts.repayAndWithdrawAccounts.repayAccounts.obligation, isSigner: false, isWritable: true, }, { pubkey: accounts.repayAndWithdrawAccounts.repayAccounts.lendingMarket, isSigner: false, isWritable: false, }, { pubkey: accounts.repayAndWithdrawAccounts.repayAccounts.repayReserve, isSigner: false, isWritable: true, }, { pubkey: accounts.repayAndWithdrawAccounts.repayAccounts.reserveLiquidityMint, isSigner: false, isWritable: true, }, { pubkey: accounts.repayAndWithdrawAccounts.repayAccounts .reserveDestinationLiquidity, isSigner: false, isWritable: true, }, { pubkey: accounts.repayAndWithdrawAccounts.repayAccounts.userSourceLiquidity, isSigner: false, isWritable: true, }, { pubkey: accounts.repayAndWithdrawAccounts.repayAccounts.tokenProgram, isSigner: false, isWritable: false, }, { pubkey: accounts.repayAndWithdrawAccounts.repayAccounts .instructionSysvarAccount, isSigner: false, isWritable: false, }, { pubkey: accounts.repayAndWithdrawAccounts.withdrawAccounts.owner, isSigner: true, isWritable: false, }, { pubkey: accounts.repayAndWithdrawAccounts.withdrawAccounts.obligation, isSigner: false, isWritable: true, }, { pubkey: accounts.repayAndWithdrawAccounts.withdrawAccounts.lendingMarket, isSigner: false, isWritable: false, }, { pubkey: accounts.repayAndWithdrawAccounts.withdrawAccounts .lendingMarketAuthority, isSigner: false, isWritable: false, }, { pubkey: accounts.repayAndWithdrawAccounts.withdrawAccounts.withdrawReserve, isSigner: false, isWritable: true, }, { pubkey: accounts.repayAndWithdrawAccounts.withdrawAccounts.reserveLiquidityMint, isSigner: false, isWritable: true, }, { pubkey: accounts.repayAndWithdrawAccounts.withdrawAccounts .reserveSourceCollateral, isSigner: false, isWritable: true, }, { pubkey: accounts.repayAndWithdrawAccounts.withdrawAccounts .reserveCollateralMint, isSigner: false, isWritable: true, }, { pubkey: accounts.repayAndWithdrawAccounts.withdrawAccounts .reserveLiquiditySupply, isSigner: false, isWritable: true, }, { pubkey: accounts.repayAndWithdrawAccounts.withdrawAccounts .userDestinationLiquidity, isSigner: false, isWritable: true, }, { pubkey: accounts.repayAndWithdrawAccounts.withdrawAccounts .placeholderUserDestinationCollateral, isSigner: false, isWritable: false, }, { pubkey: accounts.repayAndWithdrawAccounts.withdrawAccounts .collateralTokenProgram, isSigner: false, isWritable: false, }, { pubkey: accounts.repayAndWithdrawAccounts.withdrawAccounts .liquidityTokenProgram, isSigner: false, isWritable: false, }, { pubkey: accounts.repayAndWithdrawAccounts.withdrawAccounts .instructionSysvarAccount, isSigner: false, isWritable: false, }, { pubkey: accounts.collateralFarmsAccounts.obligationFarmUserState, isSigner: false, isWritable: true, }, { pubkey: accounts.collateralFarmsAccounts.reserveFarmState, isSigner: false, isWritable: true, }, { pubkey: accounts.debtFarmsAccounts.obligationFarmUserState, isSigner: false, isWritable: true, }, { pubkey: accounts.debtFarmsAccounts.reserveFarmState, isSigner: false, isWritable: true, }, { pubkey: accounts.farmsProgram, isSigner: false, isWritable: false }, ] const identifier = Buffer.from([111, 173, 148, 121, 105, 221, 159, 99]) const buffer = Buffer.alloc(1000) const len = layout.encode( { repayAmount: args.repayAmount, withdrawCollateralAmount: args.withdrawCollateralAmount, }, buffer ) const data = Buffer.concat([identifier, buffer]).slice(0, 8 + len) const ix = new TransactionInstruction({ keys, programId, data }) return ix }