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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 RefreshObligationFarmsForReserveArgs { mode: number } export interface RefreshObligationFarmsForReserveAccounts { crank: PublicKey obligation: PublicKey lendingMarketAuthority: PublicKey reserve: PublicKey reserveFarmState: PublicKey obligationFarmUserState: PublicKey lendingMarket: PublicKey farmsProgram: PublicKey rent: PublicKey systemProgram: PublicKey } export const layout = borsh.struct([borsh.u8("mode")]) export function refreshObligationFarmsForReserve( args: RefreshObligationFarmsForReserveArgs, accounts: RefreshObligationFarmsForReserveAccounts, programId: PublicKey = PROGRAM_ID ) { const keys: Array<AccountMeta> = [ { pubkey: accounts.crank, isSigner: true, isWritable: true }, { pubkey: accounts.obligation, isSigner: false, isWritable: false }, { pubkey: accounts.lendingMarketAuthority, isSigner: false, isWritable: true, }, { pubkey: accounts.reserve, isSigner: false, isWritable: false }, { pubkey: accounts.reserveFarmState, isSigner: false, isWritable: true }, { pubkey: accounts.obligationFarmUserState, isSigner: false, isWritable: true, }, { pubkey: accounts.lendingMarket, isSigner: false, isWritable: false }, { pubkey: accounts.farmsProgram, isSigner: false, isWritable: false }, { pubkey: accounts.rent, isSigner: false, isWritable: false }, { pubkey: accounts.systemProgram, isSigner: false, isWritable: false }, ] const identifier = Buffer.from([140, 144, 253, 21, 10, 74, 248, 3]) const buffer = Buffer.alloc(1000) const len = layout.encode( { mode: args.mode, }, buffer ) const data = Buffer.concat([identifier, buffer]).slice(0, 8 + len) const ix = new TransactionInstruction({ keys, programId, data }) return ix }