Query the Ethereum Blockchain for ERC-20s, Txs, NFTs, and More

Need to discover the simplest option to question the Ethereum blockchain for ERC-20 tokens, transactions, NFTs, and different knowledge? With Moralis’ top-tier APIs, you may seamlessly fetch any on-chain knowledge from any blockchain with just a few traces of code. As such, when utilizing Moralis, you may construct decentralized functions (dapps) quicker and extra effectively!

For a preview of what’s to come back, try the endpoints beneath for querying ERC-20 tokens, transactions, and NFTs from the Ethereum community: 

getWalletTokenBalances() – Question the ERC-20 token balances of any pockets:const response = await Moralis.EvmApi.token.getWalletTokenBalances({
“chain”: “0x1”,
“deal with”: “0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326”
}); getWalletTransactions() – Get the native transaction historical past of any deal with: const response = await Moralis.EvmApi.transaction.getWalletTransactions({
“chain”: “0x1”,
“deal with”: “0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326”
}); getWalletNFTs() – Fetch the NFT stability of any pockets: const response = await Moralis.EvmApi.nft.getWalletNFTs({
“chain”: “0x1”,
“deal with”: “0xff3879b8a363aed92a6eaba8f61f1a96a9ec3c1e”
});

Should you’d wish to study extra about querying knowledge from the Ethereum blockchain and discover extra endpoints, try the official Moralis documentation web page or be a part of us on this article! Additionally, when you want to question the Ethereum blockchain your self, don’t neglect to enroll with Moralis. You possibly can create an account free of charge, and also you’ll achieve on the spot entry to our premier Web3 APIs! 

Overview 

Whether or not you’re constructing an Ethereum-based decentralized trade (DEX), cryptocurrency pockets, portfolio tracker, or some other Web3 mission, you want a straightforward option to question ERC-20 tokens, transactions, and so on., from the blockchain. Nonetheless, that is simpler mentioned than carried out. And with a number of methods to question blockchain knowledge, how do you discover the most suitable choice? 

On this information, we’ll introduce you to the simplest option to question and combine Ethereum blockchain knowledge into your tasks. So, whether or not you’re trying to prototype your individual Web3 mission or scale an current dapp, this learn is for you. Let’s dive straight into it! 

What’s Ethereum Knowledge? 

Ethereum knowledge – additionally sometimes known as ”Ethereum on-chain knowledge” – is all of the publicly obtainable info saved on the Ethereum blockchain. With this knowledge, it’s potential to confirm transactions, monitor the motion of property, and achieve in-depth market insights. As such, the flexibility to question blockchain knowledge is a necessary a part of constructing dapps and different Web3 tasks on Ethereum! 

Ethereum blockchain knowledge will be divided into three important classes: 

Transaction Knowledge: Transaction knowledge is details about every Ethereum transaction. This contains sender and receiver addresses, transaction quantities, charges, and extra.   Sensible Contract Knowledge: Sensible contract knowledge refers to all of the details about good contracts deployed on Ethereum, together with a contract’s code, logs, state, and occasions.  Block Knowledge: Block knowledge is all of the details about every block within the Ethereum chain. This contains info equivalent to hashes, transactions, miner charges, time stamps, and rather more.

All in all, Ethereum knowledge refers back to the publicly obtainable info saved on the blockchain, together with transaction, good contract, and block knowledge! 

How Do You Get Knowledge from the Ethereum Blockchain? 

It’s potential to question the Ethereum blockchain in quite a few alternative ways. Beneath, we’ll discover three distinguished examples: 

Run a Node: One possibility for querying the Ethereum blockchain is to run a node your self. In doing so, you may straight work together with the Ethereum blockchain to question transactions, ERC-20 tokens, and extra.  Block Explorers: It’s additionally potential to leverage block explorers, that are platforms that let you seamlessly browse all transactions saved on Ethereum. For Ethereum, the go-to alternative is Etherscan.   Web3 APIs: You too can use Web3 API suppliers to question the Ethereum blockchain. A Web3 API – brief for ”software programming interface” – is a set of guidelines, strategies, and protocols that let you work together with a blockchain community.

Whereas you need to use nodes, block explores, and Web3 APIs to question the Ethereum blockchain, these three choices have their very own benefits and drawbacks. For instance, working a node requires an underlying infrastructure, which will be bothersome to arrange. Moreover, whereas block explores offer you an intuitive interface to learn blockchain transactions, they’re not designed for integrating knowledge into dapps. 

As such, relating to Web3 improvement, your only option is to leverage a Web3 API supplier! However which Web3 API supplier is the very best? For the reply to this query, be a part of us within the following part as we introduce you to Moralis! 

The Best Solution to Question the Ethereum Blockchain 

The best option to question the Ethereum blockchain is to make use of Moralis – the #1 Web3 API supplier. Our premier Web3 APIs are trusted by {industry} leaders equivalent to MetaMask, Delta, Opera, and lots of others. As such, Moralis at the moment powers crypto and blockchain tasks for hundreds of thousands of finish customers throughout the globe! 

In Moralis’ premier suite of improvement instruments, you’ll discover a number of use-case-specific Web3 APIs, together with the Token API, Pockets API, and NFT API. With these interfaces, it turns into potential to question and combine Ethereum blockchain knowledge into your dapps with solely single traces of code. Consequently, when working with Moralis, you may construct every part from cryptocurrency wallets to decentralized finance (DeFi) platforms with ease.

For a fast introduction to our suite of improvement instruments, listed below are three examples of Web3 APIs you need to use to question the Ethereum blockchain:

Token API: The Token API helps each single token throughout the largest blockchains, making it the {industry}’s most complete API for ERC-20 token knowledge. With this API, you may effortlessly fetch token balances, transactions, costs, and extra.  Pockets API: The Pockets API is the {industry}’s main software for constructing wallets and integrating pockets performance into your dapps. With single traces of code, you may seamlessly use the Pockets API to fetch balances, transactions, profile knowledge, and so on., from any deal with.  NFT API: The NFT API offers you every part you should question NFT knowledge from the Ethereum blockchain. Use this API to get NFT balances, metadata, value knowledge, and rather more with out breaking a sweat. 

If you wish to discover all our improvement instruments, please go to our Web3 API web page, the place you’ll discover greater than ten extra industry-leading interfaces! 

Advantages of Utilizing Moralis 

With an outline of Moralis, let’s now discover some distinguished advantages of utilizing our industry-leading Web3 APIs when querying blockchain knowledge: 

Complete: We enrich all our API responses with deal with labels, marked knowledge, metadata, and extra from a number of sources. This permits us to offer the {industry}’s most complete Web3 APIs.  Easy and Cross-Chain Suitable: Request and response constructions comply with the identical patterns and requirements throughout all our APIs, making it tremendous straightforward so that you can question on-chain knowledge. Furthermore, our APIs are cross-chain suitable, which means you need to use the identical instruments to construct on networks like Ethereum, Polygon, Solana, and lots of others.  Trusted: Moralis is trusted by a whole bunch of 1000’s of Web3 builders and enormous enterprise clients, together with MetaMask, Opera, Delta, and so on. 

Additionally, do you know you may entry our premier Web3 APIs free of charge? All it’s important to do is enroll with Moralis, and also you’ll have the ability to begin constructing dapps quicker and extra effectively at this time!

Now, let’s dive into the code and look nearer at how you need to use our APIs to question knowledge from the Ethereum blockchain! 

Ethereum Instance Queries: Uncover Learn how to Question Ethereum for Knowledge 

Let’s now dive into the primary subject and present you ways straightforward it’s to question the Ethereum blockchain when utilizing Moralis. To take action, we’ll dive into three examples of endpoints you may make the most of to question ERC-20 tokens, transactions, and NFTs straight from the Ethereum blockchain! 

Learn how to Question ERC-20 Tokens?

With Moralis’ Token API, you may effortlessly get any pockets’s ERC-20 token balances. In reality, all you want is a single API name to the getWalletTokenBalances() endpoint: 

const response = await Moralis.EvmApi.token.getWalletTokenBalances({
“chain”: “0x1”,
“deal with”: “0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326”
});

In return for calling the endpoint above, you’ll get an array of all tokens held by the desired deal with:

[
{
“token_address”: “0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48”,
“symbol”: “USDC”,
“name”: “USD Coin”,
“logo”: “https://cdn.moralis.io/eth/0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48.png”,
“thumbnail”: “https://cdn.moralis.io/eth/0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48_thumb.png”,
“decimals”: 6,
“balance”: “10”,
“possible_spam”: false,
“verified_contract”: true
},
//…
]

Learn how to Fetch Pockets Transactions?

With the Pockets API, you may seamlessly question the native transaction historical past of any deal with on Ethereum. Merely name the getWalletTransactions() endpoint: 

const response = await Moralis.EvmApi.transaction.getWalletTransactions({
“chain”: “0x1”,
“deal with”: “0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326”
});

In return for calling the getWalletTransactions() endpoint, you’ll get an inventory containing the native full transaction historical past of the desired pockets: 

//…
“outcome”: [
{
“hash”: “0x3d33b9ff55f9a2e3a3b0dd1df6828fbf6df0db7ae1f5fbd253c31764c39bd970”,
“nonce”: “506740”,
“transaction_index”: “172”,
“from_address”: “0x1f9090aae28b8a3dceadf281b0f12828e676c326”,
“from_address_label”: “rsync-builder”,
“to_address”: “0x6d2e03b7effeae98bd302a9f836d0d6ab0002766”,
“to_address_label”: “Fee Recipient: 0x6d2…766”,
“value”: “107843232028388368”,
“gas”: “21000”,
“gas_price”: “19175358613”,
“input”: “0x”,
“receipt_cumulative_gas_used”: “21716381”,
“receipt_gas_used”: “21000”,
“receipt_contract_address”: null,
“receipt_root”: null,
“receipt_status”: “1”,
“block_timestamp”: “2024-02-16T07:48:35.000Z”,
“block_number”: “19239079”,
“block_hash”: “0x699de6e4d3035252f2ca351b95a1bdf7d9be845803a71a34d9d311f9d5a0a618”,
“transfer_index”: [
19239079,
172
]
},
//…
]
}

Learn how to Get NFTs?

With Moralis’ NFT API, you may simply get the NFT stability of any deal with. All you should do is name the getWalletNFTs() endpoint: 

const response = await Moralis.EvmApi.nft.getWalletNFTs({
“chain”: “0x1”,
“deal with”: “0xff3879b8a363aed92a6eaba8f61f1a96a9ec3c1e”
});

Calling the getWalletNFTs() endpoint offers you a response containing an inventory of all NFTs held by the pockets in query: 

//…
“outcome”: [
{
“amount”: “1”,
“token_id”: “5021”,
“token_address”: “0xfff54e6fe44fd47c8814c4b1d62c924c54364ad3”,
“contract_type”: “ERC721”,
“owner_of”: “0xff3879b8a363aed92a6eaba8f61f1a96a9ec3c1e”,
“last_metadata_sync”: null,
“last_token_uri_sync”: “2024-02-11T03:14:30.593Z”,
“metadata”: null,
“block_number”: “14647390”,
“block_number_minted”: “14647390”,
“name”: “Youtopia”,
“symbol”: “Youtopia”,
“token_hash”: “d4719eaf84eabcf443065b0a463f5886”,
“token_uri”: “http://api.youtopia-official.xyz/ipfs/5021”,
“minter_address”: “0x13f11fd2c7c7be94674651386370d02b7aac9653”,
“verified_collection”: false,
“possible_spam”: true,
“collection_logo”: “//…”,
“collection_banner_image”: “//…”
},
//…
]
}

Tutorial: Learn how to Question Ethereum Blockchain Knowledge in 3 Steps 

We’ll now cowl a short tutorial displaying you methods to name the assorted endpoints of Moralis. As such, when you comply with alongside, you’ll quickly know methods to question the Ethereum blockchain your self for ERC-20 tokens, transactions, NFT balances, and extra! 

Nonetheless, for this walkthrough, we’ll be utilizing the getWalletTokenBalances() endpoint for instance. And we’ll present you methods to question the Ethereum blockchain in three steps:

Get a Moralis API KeyWrite a ScriptRun the Code

Nonetheless, earlier than continuing, you will need to cope with just a few conditions! 

Stipulations 

You possibly can question Ethereum blockchain knowledge with Moralis utilizing a number of totally different programming languages, together with Python, Go, and so on. Nonetheless, for this tutorial, we’ll use JavaScript and Node.js. As such, when you haven’t already, guarantee you’ve gotten the next prepared: 

Step 1: Get a Moralis API Key 

Should you haven’t already, enroll with Moralis by clicking on the ”Begin for Free” button on the prime proper of Moralis’ homepage: 

With an account at hand, go to the ”Settings” tab, scroll right down to the ”API Keys” part, and duplicate your key: 

Preserve it for now, as you’ll want it within the subsequent step! 

Step 2: Write a Script 

Open your IDE, arrange a brand new folder, and initialize a mission utilizing the next terminal command: 

npm init

Subsequent, set up the Moralis SDK with the next terminal enter: 

npm set up moralis @moralisweb3/common-evm-utils

You possibly can then open your ”package deal.json” file and add ”sort”: ”module” to the listing:

From right here, create an ”index.js” file and add the next code: 

import Moralis from ‘moralis’;

strive {
await Moralis.begin({
apiKey: “YOUR_API_KEY”
});

const response = await Moralis.EvmApi.token.getWalletTokenBalances({
“chain”: “0x1”,
“deal with”: “0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326”
});

console.log(response.uncooked);
} catch (e) {
console.error(e);
}

You then have to configure the code by changing YOUR_API_KEY, which you copied earlier, and configure the deal with parameter to suit your question: 

That’s it; all that is still from right here is working the code! 

Step 3: Run the Code

Open a brand new terminal and run the command beneath to execute the script: 

node index.js

In return, you’ll get a response containing an array of all tokens held by the pockets in query. It’s going to look one thing like this: 

[
{
“token_address”: “0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48”,
“symbol”: “USDC”,
“name”: “USD Coin”,
“logo”: “https://cdn.moralis.io/eth/0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48.png”,
“thumbnail”: “https://cdn.moralis.io/eth/0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48_thumb.png”,
“decimals”: 6,
“balance”: “10”,
“possible_spam”: false,
“verified_contract”: true
},
//…
]

That’s it! Querying Ethereum knowledge doesn’t need to be more difficult than that. From right here, you may comply with the identical steps and easily swap the endpoints and parameters to question transactions, NFTs, or different Ethereum knowledge! 

Question Ethereum with Moralis and Construct Subsequent-Gen Dapps 

With Moralis’ numerous suite of APIs, you may seamlessly construct any mission you need. Nonetheless, to present you just a few examples, we’ll take this part to discover three distinguished use circumstances for Moralis’ APIs: 

Token Analytics: Token analytics platforms are web sites and apps that give customers in-depth market perception into cryptocurrencies. These instruments establish, fetch, analyze, and current blockchain knowledge in a readable format, making it straightforward for merchants to make extra knowledgeable funding choices.

An amazing instance of a token analytics platform utilizing our Web3 APIs is Moralis Cash. Moralis Cash is a number one token explorer, blockchain knowledge analytics software, and crypto buying and selling platform. As such, it’s basically a one-stop store for cryptocurrency merchants.

Portfolio Trackers: Portfolio trackers are apps that enable customers to observe the efficiency of their digital property throughout a number of blockchains. Consequently, they basically enable customers to prepare and handle their fungible tokens and NFTs in a single place.

An instance of a portfolio tracker is Delta, an industry-leading platform for monitoring digital property, together with shares, NFTs, and cryptocurrencies. Delta makes use of Moralis’ Why Did It Transfer API to not solely inform customers when the worth of cryptocurrencies modifications but additionally inform customers why the value motion occurred.

Cryptocurrency Wallets: Cryptocurrency wallets are digital platforms that enable customers to retailer and handle their digital property, together with fungible tokens and NFTs. Probably the most distinguished cryptocurrency wallets additionally present performance for promoting, shopping for, and swapping tokens.

An amazing instance of a cryptocurrency pockets leveraging Moralis’ Web3 APIs is MetaMask. MetaMask is a number one self-custodial pockets with hundreds of thousands and hundreds of thousands of customers worldwide. With this premier cryptocurrency pockets, customers can effortlessly retailer, promote, purchase, and commerce digital property.

Abstract: Question the Ethereum Blockchain for ERC-20 Tokens, Transactions, NFTs, and Extra

When working with Moralis, it’s straightforward to question the Ethereum blockchain. With our complete APIs, you solely want single traces of code to fetch ERC-20 tokens, transactions, and rather more straight from the Ethereum blockchain. Simply try the three endpoint examples beneath: 

getWalletTokenBalances() – Fetch the ERC-20 token balances of any deal with:const response = await Moralis.EvmApi.token.getWalletTokenBalances({
“chain”: “0x1”,
“deal with”: “0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326”
}); getWalletTransactions() – Question the native transaction historical past of any pockets: const response = await Moralis.EvmApi.transaction.getWalletTransactions({
“chain”: “0x1”,
“deal with”: “0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326”
}); getWalletNFTs() – get the NFT stability of any deal with: const response = await Moralis.EvmApi.nft.getWalletNFTs({
“chain”: “0x1”,
“deal with”: “0xff3879b8a363aed92a6eaba8f61f1a96a9ec3c1e”
});

So, when utilizing Moralis, you may effortlessly question ERC-20 tokens, transactions, NFTs, and rather more from the Ethereum blockchain! 

Should you appreciated this tutorial on methods to question the Ethereum blockchain, think about studying extra content material right here on the weblog. As an illustration, try our most up-to-date information on methods to construct on OP Mainnet. Additionally, if you wish to begin leveraging the total energy of blockchain know-how, don’t neglect to enroll with Moralis. You possibly can create an account free of charge, and also you’ll achieve on the spot entry to our industry-leading Web3 API suite!