@kamino-finance/klend-sdk
Version:
Typescript SDK for interacting with the Kamino Lending (klend) protocol
66 lines (61 loc) • 2.03 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 OracleHeartbeatArgs {
params: types.OracleHeartbeatParamsFields
}
export interface OracleHeartbeatAccounts {
oracle: Address
oracleAuthority: TransactionSigner
tokenAccount: Address
gcOracle: Address
oracleQueue: Address
permission: Address
dataBuffer: Address
}
export const layout = borsh.struct([
types.OracleHeartbeatParams.layout("params"),
])
export function oracleHeartbeat(
args: OracleHeartbeatArgs,
accounts: OracleHeartbeatAccounts,
programAddress: Address = PROGRAM_ID
) {
const keys: Array<IAccountMeta | IAccountSignerMeta> = [
{ address: accounts.oracle, role: 1 },
{
address: accounts.oracleAuthority.address,
role: 2,
signer: accounts.oracleAuthority,
},
{ address: accounts.tokenAccount, role: 0 },
{ address: accounts.gcOracle, role: 1 },
{ address: accounts.oracleQueue, role: 1 },
{ address: accounts.permission, role: 0 },
{ address: accounts.dataBuffer, role: 1 },
]
const identifier = Buffer.from([10, 175, 217, 130, 111, 35, 117, 54])
const buffer = Buffer.alloc(1000)
const len = layout.encode(
{
params: types.OracleHeartbeatParams.toEncodable(args.params),
},
buffer
)
const data = Buffer.concat([identifier, buffer]).slice(0, 8 + len)
const ix: IInstruction = { accounts: keys, programAddress, data }
return ix
}