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Flash Loan

Borrows tokens from the pool that must be repaid (with fee) in the same transaction via a callback.

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Accounts

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pair
Account<Pair>
required
The pair account.
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token_vault
InterfaceAccount<TokenAccount>
required
The pair vault for the flash loan token.
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user_token_account
InterfaceAccount<TokenAccount>
required
User’s token account. Will receive flash loan and must repay from here.
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flashloan_receiver_program
Program
required
The program that will receive the flash loan callback. Must implement the flashloan receiver interface.
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user
Signer
required
The user requesting the flash loan. Must be a signer.

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Arguments

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amount
u64
required
Amount to flash loan. Must be greater than 0.
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receiver_instruction
Vec<u8>
required
Serialized instruction data to pass to the flashloan receiver program.
use anchor_lang::prelude::*;
use omnipair::program::Omnipair;

let flashloan_args = FlashloanArgs {
    amount: 10000 * 10u64.pow(token_decimals),
    receiver_instruction: receiver_ix_data,
};

let accounts = Flashloan {
    pair: pair_pda,
    token_vault: token1_vault,
    user_token_account: user_token1_account,
    flashloan_receiver_program: receiver_program_id,
    flashloan_receiver_accounts: receiver_accounts,
    user: user.key(),
    // ... other accounts
};

let ctx = CpiContext::new(program_id, accounts);
omnipair::cpi::flashloan(ctx, flashloan_args)?;

{
  "signature": "5VERv8NMvzbJMEkV8xnrLkEaWRtSz9CosKDYjCJjBRnbJLgp8uirBgmG5Rk88jH2k9f4w3JHFf7Pjsk3bWqeXrC",
  "slot": 123456789
}