* Please note, this video is out of date. New functionality has been added since the video was posted.
Write JavaScript code using built-in Node.js modules to make HTTP requests and fetch data from any API or website.
Send custom code which is executed off-chain and have the result is sent back to the contract as bytes32, int256, uint256, string or, bytes.
Private variables, such as API keys, can stored off-chain by uploading them to the Chainlink node's encrypted storage. They can then be used in a request, without being exposed on-chain.
Instead of sending a large string containing custom code, the external adapter can also fetch and execute JavaScript files that have been uploaded to IPFS.
Use the simulator to make test calls to the external adapter and verify the custom JavaScript code is working correctly before deploying to a contract.
The simulator generates Solidity code which can be pasted into a smart contract. Also, the web app can be used to easily upload code files via Web3.Storage.
The adapter is available for the Polygon Mumbai testnet through a Chainlink node hosted on Google Cloud Platform.
