@kamino-finance/klend-sdk
Version:
Typescript SDK for interacting with the Kamino Lending (klend) protocol
66 lines (60 loc) • 2.01 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([122, 3, 21, 222, 158, 255, 238, 157])
export interface UpdateVaultConfigArgs {
entry: types.VaultConfigFieldKind
data: Uint8Array
}
export interface UpdateVaultConfigAccounts {
signer: TransactionSigner
globalConfig: Address
vaultState: Address
klendProgram: Address
}
export const layout = borsh.struct([
types.VaultConfigField.layout("entry"),
borsh.vecU8("data"),
])
export function updateVaultConfig(
args: UpdateVaultConfigArgs,
accounts: UpdateVaultConfigAccounts,
remainingAccounts: Array<AccountMeta | AccountSignerMeta> = [],
programAddress: Address = PROGRAM_ID
) {
const keys: Array<AccountMeta | AccountSignerMeta> = [
{ address: accounts.signer.address, role: 2, signer: accounts.signer },
{ address: accounts.globalConfig, role: 0 },
{ address: accounts.vaultState, role: 1 },
{ address: accounts.klendProgram, role: 0 },
...remainingAccounts,
]
const buffer = Buffer.alloc(1000)
const len = layout.encode(
{
entry: args.entry.toEncodable(),
data: Buffer.from(
args.data.buffer,
args.data.byteOffset,
args.data.length
),
},
buffer
)
const data = Buffer.concat([DISCRIMINATOR, buffer]).slice(0, 8 + len)
const ix: Instruction = { accounts: keys, programAddress, data }
return ix
}