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@kamino-finance/klend-sdk

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Typescript SDK for interacting with the Kamino Lending (klend) protocol

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/* 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 }