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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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/* 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([220, 59, 207, 236, 108, 250, 47, 100]) export interface InitArgs { params: types.InitParamsFields } export interface InitAccounts { upgradeAuthority: TransactionSigner admin: Address transferAuthority: Address perpetuals: Address perpetualsProgram: Address perpetualsProgramData: Address systemProgram: Address tokenProgram: Address } export const layout = borsh.struct<InitArgs>([ types.InitParams.layout("params"), ]) export function init( args: InitArgs, accounts: InitAccounts, remainingAccounts: Array<AccountMeta | AccountSignerMeta> = [], programAddress: Address = PROGRAM_ID ) { const keys: Array<AccountMeta | AccountSignerMeta> = [ { address: accounts.upgradeAuthority.address, role: 3, signer: accounts.upgradeAuthority, }, { address: accounts.admin, role: 0 }, { address: accounts.transferAuthority, role: 1 }, { address: accounts.perpetuals, role: 1 }, { address: accounts.perpetualsProgram, role: 0 }, { address: accounts.perpetualsProgramData, role: 0 }, { address: accounts.systemProgram, role: 0 }, { address: accounts.tokenProgram, role: 0 }, ...remainingAccounts, ] const buffer = Buffer.alloc(1000) const len = layout.encode( { params: types.InitParams.toEncodable(args.params), }, buffer ) const data = Buffer.concat([DISCRIMINATOR, buffer]).slice(0, 8 + len) const ix: Instruction = { accounts: keys, programAddress, data } return ix }