@kamino-finance/klend-sdk
Version:
Typescript SDK for interacting with the Kamino Lending (klend) protocol
70 lines (65 loc) • 2.23 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 VrfLiteProveAndVerifyArgs {
params: types.VrfLiteProveAndVerifyParamsFields
}
export interface VrfLiteProveAndVerifyAccounts {
vrfLite: Address
callbackPid: Address
tokenProgram: Address
escrow: Address
programState: Address
oracle: Address
oracleAuthority: TransactionSigner
oracleWallet: Address
instructionsSysvar: Address
}
export const layout = borsh.struct([
types.VrfLiteProveAndVerifyParams.layout("params"),
])
export function vrfLiteProveAndVerify(
args: VrfLiteProveAndVerifyArgs,
accounts: VrfLiteProveAndVerifyAccounts,
programAddress: Address = PROGRAM_ID
) {
const keys: Array<IAccountMeta | IAccountSignerMeta> = [
{ address: accounts.vrfLite, role: 1 },
{ address: accounts.callbackPid, role: 0 },
{ address: accounts.tokenProgram, role: 0 },
{ address: accounts.escrow, role: 1 },
{ address: accounts.programState, role: 0 },
{ address: accounts.oracle, role: 0 },
{
address: accounts.oracleAuthority.address,
role: 2,
signer: accounts.oracleAuthority,
},
{ address: accounts.oracleWallet, role: 1 },
{ address: accounts.instructionsSysvar, role: 0 },
]
const identifier = Buffer.from([191, 68, 209, 152, 10, 94, 165, 11])
const buffer = Buffer.alloc(1000)
const len = layout.encode(
{
params: types.VrfLiteProveAndVerifyParams.toEncodable(args.params),
},
buffer
)
const data = Buffer.concat([identifier, buffer]).slice(0, 8 + len)
const ix: IInstruction = { accounts: keys, programAddress, data }
return ix
}