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How to get Uniswap V2 pair reserves

Prerequisites

Before getting started, make sure you have the following ready:

  • Node v.14+ or Python
  • NPM/Yarn or Pip

Step 1: Setup Moralis

First register your Moralis account and get your Moralis API Key.

Once you have your Moralis API Key, install the Moralis SDK in your project.

npm install moralis @moralisweb3/common-evm-utils

Step 2: Get Pair Reserves of A Uniswap V2 Liquidity Pool

In order to get pair address of a liquidity, Moralis provides you a getPairAddress endpoint to do so.

Here you'll need two parameters: pairAddress and address.

Once you've obtained the pairAddress and address, you can copy the following code:

const Moralis = require('moralis').default;
const { EvmChain } = require('@moralisweb3/common-evm-utils');

const runApp = async () => {
await Moralis.start({
apiKey: "YOUR_API_KEY",
// ...and any other configuration
});

const pairAddress = '0xa2107fa5b38d9bbd2c461d6edf11b11a50f6b974'

const chain = EvmChain.ETHEREUM;

const response = await Moralis.EvmApi.defi.getPairReserves({
pairAddress,
chain,
});

console.log(response.toJSON());
}

runApp();

Step 3: Run the script

To run the script, enter the following command:

node index.js

In your terminal, you should see the following JSON response:

{
"reserve0": "153821290283758699698748",
"reserve1": "794388536599735508826"
}

Congratulations 🥳 You just get the pair reserves of a Uniswap V2 liquidity pool with just a few lines of code using the Moralis DeFi API!

API Reference

If you want to know more details on the endpoint and optional parameters, check out:

Support

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