@kamino-finance/klend-sdk
Version:
Typescript SDK for interacting with the Kamino Lending (klend) protocol
63 lines (57 loc) • 1.86 kB
text/typescript
/* 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([
177, 200, 120, 134, 110, 217, 147, 81,
])
export interface GiveUpPendingFeesArgs {
maxAmountToGiveUp: BN
}
export interface GiveUpPendingFeesAccounts {
vaultAdminAuthority: TransactionSigner
vaultState: Address
klendProgram: Address
}
export const layout = borsh.struct<GiveUpPendingFeesArgs>([
borsh.u64("maxAmountToGiveUp"),
])
export function giveUpPendingFees(
args: GiveUpPendingFeesArgs,
accounts: GiveUpPendingFeesAccounts,
remainingAccounts: Array<AccountMeta | AccountSignerMeta> = [],
programAddress: Address = PROGRAM_ID
) {
const keys: Array<AccountMeta | AccountSignerMeta> = [
{
address: accounts.vaultAdminAuthority.address,
role: 3,
signer: accounts.vaultAdminAuthority,
},
{ address: accounts.vaultState, role: 1 },
{ address: accounts.klendProgram, role: 0 },
...remainingAccounts,
]
const buffer = Buffer.alloc(1000)
const len = layout.encode(
{
maxAmountToGiveUp: args.maxAmountToGiveUp,
},
buffer
)
const data = Buffer.concat([DISCRIMINATOR, buffer]).slice(0, 8 + len)
const ix: Instruction = { accounts: keys, programAddress, data }
return ix
}