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Ethereum: How to get the amount of token0 and token1 from a Uniswap V3 pool in JS
I can give you a test item on how to upload the amount of token0andtoken1from uniswap v3 to Javascript using the UNISWAP library.
Purchase of the amounts of tokens from the Uniswap pool
UNISWAP V3 provides API to get information about chip hips, including the quantities held in the pool. In this article, we will go through how to use auniswap.v3.pool object to obtain ‘token’ and token1Uniswap V3 pool.
Hypotheses
Before you start, make sure you have the following installed addictions:
Javascript
NPM Install Uniswap-JS
`
Example of code
Javascript
Const {
Uniswapv3interface,
} = requires (‘uniswap-js’);
The function async getpooltokeenamounts () {
// set an instance of API API V3 V3
Constn it = New Uniswapv3intterface ({
Supplier: ‘ // replace the ID ID Project Project Project Project project project
Apikey: “Youpi_api_KEy”,
});
// Create a Pool object for a specified fund (eg Pool Testin V3 Uniswap V3)
Const pool = acait api.getpool (‘0x …’); // replace the background address
Try {
// get the sum token0 and token1 from the pool
Const token0amount = wait pool.getbalanceof (‘token0’);
Const token1amount = wait pool.getbalanceof (‘token1’);
Return {token0amount, token1amount};
} Catch (error) {
Console.error (error);
Turn null;
}
}
// Example of use:
GetpoolTokeneamounts (). then ((results) => {
IF (results) {
Const {token0amount, token1amount} = results;
Console.log (sum token0: $ {token0amount});
Console.log (sum token1: $ {token1amount);
}
});
Explanation
In this example of code:
- We create a new instance of the "Uniswapv3interface" class, which we will teach the ID of our Infra and API project as arguments.
- Then we create a pool object for the specified fund (eg.
- We use the "GetBalanceof" method to obtain the sum of token0 and token1 from the background.
- Finally, we return the object with the quantity obtained.
Tips for troubleshoot
If you are experiencing problems with this code you get token amounts, there are some troubleshooting tips:
- Make sure you have replaced the addresses of the teaching symbols (0x …`) for your UNISWAP V3 address.
- Make sure your Infura and API key are correct and valid.
- Check the UNISWAP documentation for API interface changes or use for UNISWAP V3 use.
As a result of this article, you should be able to load the amount of token0 and token1 from uniswap v3 in javascripts. If you have any problems or have any other questions, do not hesitate to ask!
