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@nazariyv
nazariyv / MyFlashLoan.sol
Created September 13, 2020 13:39
Full template of a contract that can flashloan from Aave. You also need to add your own logic in terms of what you want to do with the lent amounts in the executeOperation function
pragma solidity ^0.6.6;
import "https://github.com/aave/flashloan-box/blob/Remix/contracts/aave/FlashLoanReceiverBase.sol";
import "https://github.com/aave/flashloan-box/blob/Remix/contracts/aave/ILendingPoolAddressesProvider.sol";
import "https://github.com/aave/flashloan-box/blob/Remix/contracts/aave/ILendingPool.sol";
contract Flashloan is FlashLoanReceiverBase {
constructor(address _addressProvider) FlashLoanReceiverBase(_addressProvider) public {}
/**
@guumaster
guumaster / 00-README.md
Last active January 23, 2023 15:48
How to upload a file with $.ajax to AWS S3 with a pre-signed url

Upload a file with $.ajax to AWS S3 with a pre-signed url

When you read about how to create and consume a pre-signed url on this guide, everything is really easy. You get your Postman and it works like a charm in the first run.

Then you open your browser, try your usual $.ajax() and send your PUT operation, and you hit the cold iced wall of AWS error message, a simple <Code>SignatureDoesNotMatch</Code> that will steal hours from your productivity.

So here I come to save you and give you a free working example of how to upload a file directly to AWS S3 from your browser. You are wellcome :).