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How to get decoded events

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 decoded events​

In order to get decoded events, Blocklens provides you a getDecodedEvents endpoint to do so.

import Blocklens from "blocklens-sdk";

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

const runApis = async () => {
  const response = await blocklens.ETH_MAINNET.getDecodedEvents();
  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:

{
  "page": 1,
  "limit": 20,
  "cursor": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6IjB4ZmZmZmZhMjUxMDZkZTE1N2NhOGYzMGM2ZjY3MjFmZmM4ZWJhYThiYTk4NmZiNThjN2E2NTRmYjliYjQzY2FjMl8yNTciLCJwYWdlIjoxLCJpYXQiOjE2OTcwNjMwNDZ9.dTfG6R4JECcKyg5m-sdXRVIUMit-zj9JkQgQy6jZEMg",
  "total_items": 1,
  "data": [
    {
      "tx_hash": "0xffffffd37775038cb9f7019f14a4a8ffb0b2e8ccae72a29c61de61e81ab7e14e",
      "contract_address": "0xB705268213D593B8FD88d3FDEFF93AFF5CbDcfAE",
      "block_number": 18230941,
      "timestamp": 1695864143,
      "block_time": "2023-09-28 01:22:23",
      "signature": "Transfer(address,address,uint256)",
      "index": 52,
      "data_decoded": "[\"0xDFd5293D8e347dFe59E90eFd55b2956a1343963d\",\"0xf84dfA47420f906Ae23F6684e3c837D09eD11F1a\",{\"type\":\"BigNumber\",\"hex\":\"0x22fd7bb5b544911400\"}]",
      "event_name": "Transfer"
    }
  ]
}

Congratulations 🥳 you just found the get decoded events 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​

If you face any trouble following the tutorial, feel free to reach out to our community engineers in our Discord or Forum to get 24/7 developer support.