UNPKG

@kamino-finance/klend-sdk

Version:

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

65 lines (59 loc) 1.95 kB
/* eslint-disable @typescript-eslint/no-unused-vars */ import { Address, isSome, AccountMeta, AccountSignerMeta, Instruction, Option, TransactionSigner, } from "@solana/kit" /* eslint-enable @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 { borshAddress } from "../utils" // 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 const DISCRIMINATOR = Buffer.from([245, 75, 91, 0, 236, 97, 19, 3]) export interface SocializeLossArgs { liquidityAmount: BN } export interface SocializeLossAccounts { riskCouncil: TransactionSigner obligation: Address lendingMarket: Address reserve: Address instructionSysvarAccount: Address } export const layout = borsh.struct<SocializeLossArgs>([ borsh.u64("liquidityAmount"), ]) export function socializeLoss( args: SocializeLossArgs, accounts: SocializeLossAccounts, remainingAccounts: Array<AccountMeta | AccountSignerMeta> = [], programAddress: Address = PROGRAM_ID ) { const keys: Array<AccountMeta | AccountSignerMeta> = [ { address: accounts.riskCouncil.address, role: 2, signer: accounts.riskCouncil, }, { address: accounts.obligation, role: 1 }, { address: accounts.lendingMarket, role: 0 }, { address: accounts.reserve, role: 1 }, { address: accounts.instructionSysvarAccount, role: 0 }, ...remainingAccounts, ] const buffer = Buffer.alloc(1000) const len = layout.encode( { liquidityAmount: args.liquidityAmount, }, buffer ) const data = Buffer.concat([DISCRIMINATOR, buffer]).slice(0, 8 + len) const ix: Instruction = { accounts: keys, programAddress, data } return ix }