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How to get erc20 token burns by block number or hash

Prerequisites​

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

  • Node v.14+
  • NPM

Step 1: Setup Blocklens​

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

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

npm i blocklens-sdk

Step 2: Get ERC20 token burns by block number or hash​

In order to get erc20 token burns by block number or hash, Blocklens provides you a getErc20BurnsByBlockNumberOrHash endpoint to do so.

Here you'll need a parameter: block_number_or_hash.

Once you've obtained the block_number_or_hash, you can copy the following code:

import Blocklens from "blocklens-sdk";

const blocklens = new Blocklens();
blocklens.init({ apiKey: "YOUR_API_KEY" });

const runApis = async () => {
  const response = await blocklens.ETH_MAINNET.getErc20BurnsByBlockNumberOrHash("0x0517e1369f5159852973c47dc335d28b67ccffb238333542f880abc3fe3ab505");
  console.log(response);
};

runApis();

Step 3: Run the script​

ts-node index.ts

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

{
  "cursor": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6MTgyNDYxNTAwMDcyMDAwMjIwLCJwYWdlIjoxLCJibG9ja0hhc2giOiIweDA1MTdlMTM2OWY1MTU5ODUyOTczYzQ3ZGMzMzVkMjhiNjdjY2ZmYjIzODMzMzU0MmY4ODBhYmMzZmUzYWI1MDUiLCJpYXQiOjE2OTcwNjMzMDN9.EPg2dKqlcQMcKagILi6LftRA7vm24jFe72k1mFUxHK0",
  "page": 1,
  "limit": 20,
  "total_items": 1,
  "data": [
    {
      "token_name": "Blur Pool",
      "token_symbol": "",
      "token_decimals": 18,
      "contract_address": "0x0000000000A39bb272e79075ade125fd351887Ac",
      "transaction_hash": "0x9097ee9c4691503169d28fee3b7f6f60bc8a020d16596b3a909618d7628a09cb",
      "transaction_index": 83,
      "log_index": 248,
      "block_hash": "0x0517e1369f5159852973c47dc335d28b67ccffb238333542f880abc3fe3ab505",
      "block_number": 18246150,
      "from_wallet": "0x26D347E745A1E29F5957Ff62784D66824a79aaB2",
      "value": "19000000000000000",
      "value_decimal": "0.019",
      "timestamp": 1696048259
    }
  ]
}

Congratulations 🥳 you just found the get erc20 token burns by block number or hash on multiple chains with only a few lines of code using the Blocklens Wallet API!

API Reference​

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

Support​

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