@kamino-finance/klend-sdk
Version:
Typescript SDK for interacting with the Kamino Lending (klend) protocol
68 lines (64 loc) • 2.46 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([13, 245, 180, 103, 254, 182, 121, 4])
export interface InvestAccounts {
payer: TransactionSigner
payerTokenAccount: Address
vaultState: Address
tokenVault: Address
tokenMint: Address
baseVaultAuthority: Address
ctokenVault: Address
/** CPI accounts */
reserve: Address
lendingMarket: Address
lendingMarketAuthority: Address
reserveLiquiditySupply: Address
reserveCollateralMint: Address
klendProgram: Address
reserveCollateralTokenProgram: Address
tokenProgram: Address
instructionSysvarAccount: Address
}
export function invest(
accounts: InvestAccounts,
remainingAccounts: Array<AccountMeta | AccountSignerMeta> = [],
programAddress: Address = PROGRAM_ID
) {
const keys: Array<AccountMeta | AccountSignerMeta> = [
{ address: accounts.payer.address, role: 3, signer: accounts.payer },
{ address: accounts.payerTokenAccount, role: 1 },
{ address: accounts.vaultState, role: 1 },
{ address: accounts.tokenVault, role: 1 },
{ address: accounts.tokenMint, role: 1 },
{ address: accounts.baseVaultAuthority, role: 1 },
{ address: accounts.ctokenVault, role: 1 },
{ address: accounts.reserve, role: 1 },
{ address: accounts.lendingMarket, role: 0 },
{ address: accounts.lendingMarketAuthority, role: 0 },
{ address: accounts.reserveLiquiditySupply, role: 1 },
{ address: accounts.reserveCollateralMint, role: 1 },
{ address: accounts.klendProgram, role: 0 },
{ address: accounts.reserveCollateralTokenProgram, role: 0 },
{ address: accounts.tokenProgram, role: 0 },
{ address: accounts.instructionSysvarAccount, role: 0 },
...remainingAccounts,
]
const data = DISCRIMINATOR
const ix: Instruction = { accounts: keys, programAddress, data }
return ix
}