How to Get Transaction Hash

Step 1: Set Up Moralis

Read the article Setting Up Moralis: Getting Started and make sure to finish all the steps. Only after that can you go ahead and complete this guide.

Step 2: Get Blockchain Transaction Hash

In this tutorial, you will explore how to check transaction details by hash ID using the Moralis Web3 API.

Whether you want to check, get, or confirm a transaction hash ID, this guide provides essential insights and code examples. Our script, written in JavaScript, TypeScript, and Python, demonstrates finding a transaction by hash ID on a blockchain using Moralis' getTransaction endpoint.

The guide focuses on filtering transactions to identify a particular transaction by its hash ID. This method is vital for blockchain developers needing to track or confirm specific transactions.

The guide concludes by emphasizing the effectiveness and simplicity of Moralis' API for blockchain queries, making it a valuable tool for accurate and quick transaction identification on the blockchain.

tip

If you don't have the transaction hash, you can use the getWalletTransactions endpoint to find it. In the provided example response, you can easily find the transaction hash within the hash field. Alternatively, you can use Etherscan. On Etherscan, selecting any transaction reveals the Transaction Hash prominently at the top of the page.

Full Example Script

Below is the complete script that will serve as our basis for retrieving the blockchain transaction with the hash ID.

Here, you'll need two parameters: transactionHash and chain.

Once you've obtained both the transactionHash and chain, you can copy the following code:

index.js (JavaScript)

// Import the Moralis library and EvmChain module
const Moralis = require("moralis").default;
const { EvmChain } = require("@moralisweb3/common-evm-utils");

// Define the main function to run the application
const runApp = async () => {
  // Initialize Moralis with your API key and other configurations
  await Moralis.start({
    apiKey: "YOUR_API_KEY",
    // ...and any other configuration
  });

  // Specify the transaction hash to retrieve details
  const transactionHash =
    "0xaae93882e8a9fe9ff30151853db20e4cd161940757a01744465ab83b751c5875";

  // Specify the blockchain (Ethereum in this case)
  const chain = EvmChain.ETHEREUM;

  // Fetch details of the specified transaction using the Moralis API
  const response = await Moralis.EvmApi.transaction.getTransaction({
    transactionHash,
    chain,
  });

  // Log the response details to the console in JSON format
  console.log(response.toJSON());
};

// Execute the application by calling the main function
runApp();

index.ts (TypeScript)

// Import Moralis library and EvmChain module from the specified paths
import Moralis from "moralis";
import { EvmChain } from "@moralisweb3/common-evm-utils";

// Define the main function to run the application
const runApp = async (): Promise<void> => {
  // Initialize Moralis with your API key and other configurations
  await Moralis.start({
    apiKey: "YOUR_API_KEY",
    // ...and any other configuration
  });

  // Specify the transaction hash to retrieve details
  const transactionHash =
    "0xaae93882e8a9fe9ff30151853db20e4cd161940757a01744465ab83b751c5875";

  // Specify the blockchain (Ethereum in this case)
  const chain = EvmChain.ETHEREUM;

  // Fetch details of the specified transaction using the Moralis API
  const response = await Moralis.EvmApi.transaction.getTransaction({
    transactionHash,
    chain,
  });

  // Log the response details to the console in JSON format
  console.log(response.toJSON());
};

// Execute the application by calling the main function
runApp();

index.py (Python)

# Import the necessary module from the Moralis library
from moralis import evm_api

# Specify your Moralis API key for authentication
api_key = "YOUR_API_KEY"

# Define parameters, including the transaction hash and blockchain (Ethereum in this case)
params = {
    "transaction_hash": "0xaae93882e8a9fe9ff30151853db20e4cd161940757a01744465ab83b751c5875",
    "chain": "eth",
}

# Use the Moralis API to fetch details of the specified transaction
result = evm_api.transaction.get_transaction(
    api_key=api_key,
    params=params,
)

# Print the result, which contains information about the transaction
print(result)

Step-by-Step Explanation: How to Get and Check Transaction by Hash ID

1. Initialize Moralis: Start by initializing Moralis in your preferred programming language (JavaScript, TypeScript, or Python) using your unique API key.

2. Specify Transaction Hash: Identify the transaction you want to explore by specifying its hash ID. This alphanumeric code uniquely represents a transaction on the blockchain.

3. Set Blockchain Chain: Define the blockchain network on which the transaction occurred. For instance, for Ethereum, the chain parameter would be set to "eth."

4. Fetch Transaction Details: Utilize the Moralis API's get_transaction or similar endpoint to retrieve details of the specified transaction. This may include information such as sender, receiver, amount, and timestamp.

5. Print or Process Results: Print the fetched results or process them as needed for your application. This step is crucial for developers who want to integrate this functionality into their projects.

Step 3: Run the Script

To run the script, enter the following command:

Shell (JavaScript)

node index.js

Shell (TypeScript)

ts-node index.ts

Shell (Python)

python index.py

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

{
  "hash": "0xaae93882e8a9fe9ff30151853db20e4cd161940757a01744465ab83b751c5875",
  "nonce": "6637",
  "transaction_index": "203",
  "from_address": "0x95222290dd7278aa3ddd389cc1e1d165cc4bafe5",
  "to_address": "0x388c818ca8b9251b393131c08a736a67ccb19297",
  "value": "62754610757602656",
  "gas": "30000",
  "gas_price": "10350264493",
  "input": "0x",
  "receipt_cumulative_gas_used": "19314887",
  "receipt_gas_used": "22111",
  "receipt_contract_address": null,
  "receipt_root": null,
  "receipt_status": "1",
  "block_timestamp": "2022-11-07T08:36:11.000Z",
  "block_number": "15916991",
  "block_hash": "0xd517ab9abb4beed9efb6b74ecbabc141d8550abe11aedb715ce9d133dcb32c9b",
  "transfer_index": [15916991, 203],
  "logs": [
    {
      "log_index": "299",
      "transaction_hash": "0xaae93882e8a9fe9ff30151853db20e4cd161940757a01744465ab83b751c5875",
      "transaction_index": "203",
      "transaction_value": "62754610757602656",
      "address": "0x388c818ca8b9251b393131c08a736a67ccb19297",
      "data": "0x00000000000000000000000000000000000000000000000000def2fc6a398d60",
      "topic0": "0x27f12abfe35860a9a927b465bb3d4a9c23c8428174b83f278fe45ed7b4da2662",
      "topic1": null,
      "topic2": null,
      "topic3": null,
      "block_timestamp": "2022-11-07T08:36:11.000Z",
      "block_number": "15916991",
      "block_hash": "0xd517ab9abb4beed9efb6b74ecbabc141d8550abe11aedb715ce9d133dcb32c9b",
      "transfer_index": [15916991, 203, 299]
    }
  ]
}

Congratulations 🥳! You have successfully retrieved a blockchain transaction with hash ID using the Moralis Wallet API.

Video Tutorial: How to Get Transaction Content By Hash ID Using Next.js & Node.js

For a visual guide, check out our YouTube tutorial:

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API Reference

If you want to explore more details about other blockchain endpoints and optional parameters, refer to the API Reference.