@kamino-finance/klend-sdk
Version:
Typescript SDK for interacting with the Kamino Lending (klend) protocol
68 lines (63 loc) • 2.13 kB
text/typescript
/* 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 LeaseWithdrawArgs {
params: types.LeaseWithdrawParamsFields
}
export interface LeaseWithdrawAccounts {
lease: Address
escrow: Address
aggregator: Address
queue: Address
withdrawAuthority: TransactionSigner
withdrawAccount: Address
tokenProgram: Address
programState: Address
mint: Address
}
export const layout = borsh.struct([types.LeaseWithdrawParams.layout("params")])
export function leaseWithdraw(
args: LeaseWithdrawArgs,
accounts: LeaseWithdrawAccounts,
programAddress: Address = PROGRAM_ID
) {
const keys: Array<IAccountMeta | IAccountSignerMeta> = [
{ address: accounts.lease, role: 1 },
{ address: accounts.escrow, role: 1 },
{ address: accounts.aggregator, role: 0 },
{ address: accounts.queue, role: 0 },
{
address: accounts.withdrawAuthority.address,
role: 2,
signer: accounts.withdrawAuthority,
},
{ address: accounts.withdrawAccount, role: 1 },
{ address: accounts.tokenProgram, role: 0 },
{ address: accounts.programState, role: 0 },
{ address: accounts.mint, role: 0 },
]
const identifier = Buffer.from([186, 41, 100, 248, 234, 81, 61, 169])
const buffer = Buffer.alloc(1000)
const len = layout.encode(
{
params: types.LeaseWithdrawParams.toEncodable(args.params),
},
buffer
)
const data = Buffer.concat([identifier, buffer]).slice(0, 8 + len)
const ix: IInstruction = { accounts: keys, programAddress, data }
return ix
}