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How to get transaction signatures from time to time

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 transaction signatures from time to time​

In order to get transaction signatures from time to time, Blocklens provides you a getTransactionSignaturesFromTimeToTime endpoint to do so.

Here you'll need parameters: from_time, to_time.

Once you've obtained all the from_time, to_time, 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.APTOS_MAINNET.getTransactionSignaturesFromTimeToTime({"from_time":"1696048259","to_time":"1696048260"});
  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.eyJpZCI6Mjc5OTgyMjYyLCJwYWdlIjoxLCJmcm9tX3RpbWUiOiIxNjk2MDQ4MjU5IiwidG9fdGltZSI6IjE2OTYwNDgyNTkiLCJpYXQiOjE2OTcwNjExMjh9.EuFD10jrGGgvJBYwSaX3dZMvY9-kph5a4xrGuzMlVMM",
  "page": 1,
  "limit": 20,
  "total_items": 1,
  "data": [
    {
      "block_height": 97922847,
      "transaction_version": 279982271,
      "transaction_hash": "0xee852ea50aaaa3a05faa59544cf132ce9537cb107e7212748eb3a8bd003ac60b",
      "transaction_type": "user_transaction",
      "type": "ed25519_signature",
      "public_key": "null",
      "signature": "0x7639a44e5263f477e04f426696786e0bf294d0b4468b3e1ff7b66cc00577d54ebf7bb83b0e2ef85299075c321b6218b314d21542fecb8a4343012e9d0da7b50d",
      "timestamp": 1696048259
    }
  ]
}

Congratulations 🥳 you just found the get transaction signatures from time to time 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.