As such, we will dive right into the “token allowance checker” tutorial in the next section. Most of you are probably eager to learn how to use the “get ERC-20 token allowance” ( getTokenAllowance ) endpoint with JavaScript (JS). Therefore, don’t forget to sign up with Moralis before getting your hands dirty! What’s more, you need to have a Moralis Web3 API key to accomplish this task. Whichever path you choose, you’ll learn all the essentials to create a token allowance checker. Of course, if you prefer videos, you can use the one at the top, as it will also get you to the finish line. If you wish to learn how to properly implement the getTokenAllowance Token API endpoint using NodeJS, then the tutorial below is exactly what you need. Here’s the core method of viewing wallet token approvals: const response = await (options) As such, you can build a token allowance checker dapp (decentralized application) in minutes. You only need a simple backend script (you can use NodeJS) and a React frontend. If you’d like to build such a checker, you can now easily do so, thanks to the Moralis Token API. With a reliable token allowance checker, you can see all open approvals related to any ERC-20 token for any wallet address.
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