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How to get events by transaction 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 events by transaction hash​

In order to get events by transaction hash, Blocklens provides you a getEventsByTransactionHash endpoint to do so.

Here you'll need a parameter: transaction_hash.

Once you've obtained the transaction_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.getEventsByTransactionHash("0x12259c8b5a0f51320bb1b64dfb2b1b61e24aaa127318b0cf92d209525f0d5447");
  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:

[
  {
    "tx_hash": "0x8c7a005d0c03b6c696d46ebc8a6ea1a4ebf7593154ccc30e98b7388eb7a443a8",
    "tx_index": "0x8c7a005d0c03b6c696d46ebc8a6ea1a4ebf7593154ccc30e98b7388eb7a443a8",
    "contract_address": "0x0000000000000000000000000000000000001003",
    "block_hash": 1,
    "block_number": 1,
    "timestamp": 1661314004,
    "block_time": "1970-01-19T12:04:31.492Z",
    "log_index": "0",
    "data": "0",
    "topic0": "string",
    "topic1": "string",
    "topic2": "string",
    "topic3": "string",
    "removed": "0"
  }
]

Congratulations 🥳 you just found the get events by transaction 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​

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.