UNPKG

@kamino-finance/klend-sdk

Version:

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

58 lines (53 loc) 1.77 kB
/* eslint-disable @typescript-eslint/no-unused-vars */ import { Address, isSome, IAccountMeta, IAccountSignerMeta, IInstruction, 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 interface LeaseSetAuthorityArgs { params: types.LeaseSetAuthorityParamsFields } export interface LeaseSetAuthorityAccounts { lease: Address withdrawAuthority: TransactionSigner newAuthority: Address } export const layout = borsh.struct([ types.LeaseSetAuthorityParams.layout("params"), ]) export function leaseSetAuthority( args: LeaseSetAuthorityArgs, accounts: LeaseSetAuthorityAccounts, programAddress: Address = PROGRAM_ID ) { const keys: Array<IAccountMeta | IAccountSignerMeta> = [ { address: accounts.lease, role: 1 }, { address: accounts.withdrawAuthority.address, role: 2, signer: accounts.withdrawAuthority, }, { address: accounts.newAuthority, role: 0 }, ] const identifier = Buffer.from([255, 4, 88, 2, 213, 175, 87, 22]) const buffer = Buffer.alloc(1000) const len = layout.encode( { params: types.LeaseSetAuthorityParams.toEncodable(args.params), }, buffer ) const data = Buffer.concat([identifier, buffer]).slice(0, 8 + len) const ix: IInstruction = { accounts: keys, programAddress, data } return ix }