@kamino-finance/klend-sdk/src/idl_codegen_kamino_vault/instructions/deposit.ts

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

import { TransactionInstruction, PublicKey, AccountMeta } from "@solana/web3.js" // eslint-disable-line @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 * as types from "../types" // eslint-disable-line @typescript-eslint/no-unused-vars
import { PROGRAM_ID } from "../programId"

export interface DepositArgs {
  maxAmount: BN
}

export interface DepositAccounts {
  user: PublicKey
  vaultState: PublicKey
  tokenVault: PublicKey
  tokenMint: PublicKey
  baseVaultAuthority: PublicKey
  sharesMint: PublicKey
  tokenAta: PublicKey
  userSharesAta: PublicKey
  klendProgram: PublicKey
  tokenProgram: PublicKey
  sharesTokenProgram: PublicKey
  instructionSysvarAccount: PublicKey
}

export const layout = borsh.struct([borsh.u64("maxAmount")])

export function deposit(
  args: DepositArgs,
  accounts: DepositAccounts,
  programId: PublicKey = PROGRAM_ID
) {
  const keys: Array<AccountMeta> = [
    { pubkey: accounts.user, isSigner: true, isWritable: true },
    { pubkey: accounts.vaultState, isSigner: false, isWritable: true },
    { pubkey: accounts.tokenVault, isSigner: false, isWritable: true },
    { pubkey: accounts.tokenMint, isSigner: false, isWritable: false },
    { pubkey: accounts.baseVaultAuthority, isSigner: false, isWritable: false },
    { pubkey: accounts.sharesMint, isSigner: false, isWritable: true },
    { pubkey: accounts.tokenAta, isSigner: false, isWritable: true },
    { pubkey: accounts.userSharesAta, isSigner: false, isWritable: true },
    { pubkey: accounts.klendProgram, isSigner: false, isWritable: false },
    { pubkey: accounts.tokenProgram, isSigner: false, isWritable: false },
    { pubkey: accounts.sharesTokenProgram, isSigner: false, isWritable: false },
    {
      pubkey: accounts.instructionSysvarAccount,
      isSigner: false,
      isWritable: false,
    },
  ]
  const identifier = Buffer.from([242, 35, 198, 137, 82, 225, 242, 182])
  const buffer = Buffer.alloc(1000)
  const len = layout.encode(
    {
      maxAmount: args.maxAmount,
    },
    buffer
  )
  const data = Buffer.concat([identifier, buffer]).slice(0, 8 + len)
  const ix = new TransactionInstruction({ keys, programId, data })
  return ix
}