@kamino-finance/klend-sdk
Version:
Typescript SDK for interacting with the Kamino Lending (klend) protocol
55 lines (49 loc) • 1.67 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([18, 154, 24, 18, 237, 214, 19, 80])
export interface SetFeeArgs {
singleUpdateFeeInLamports: BN
}
export interface SetFeeAccounts {
payer: TransactionSigner
config: Address
}
export const layout = borsh.struct<SetFeeArgs>([
borsh.u64("singleUpdateFeeInLamports"),
])
export function setFee(
args: SetFeeArgs,
accounts: SetFeeAccounts,
remainingAccounts: Array<AccountMeta | AccountSignerMeta> = [],
programAddress: Address = PROGRAM_ID
) {
const keys: Array<AccountMeta | AccountSignerMeta> = [
{ address: accounts.payer.address, role: 2, signer: accounts.payer },
{ address: accounts.config, role: 1 },
...remainingAccounts,
]
const buffer = Buffer.alloc(1000)
const len = layout.encode(
{
singleUpdateFeeInLamports: args.singleUpdateFeeInLamports,
},
buffer
)
const data = Buffer.concat([DISCRIMINATOR, buffer]).slice(0, 8 + len)
const ix: Instruction = { accounts: keys, programAddress, data }
return ix
}