Need to discover the best approach to question the Ethereum blockchain for ERC-20 tokens, transactions, NFTs, and different information? With Moralis’ top-tier APIs, you may seamlessly fetch any on-chain information from any blockchain with just a few traces of code. As such, when utilizing Moralis, you may construct decentralized purposes (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”,
“tackle”: “0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326”
}); getWalletTransactions() – Get the native transaction historical past of any tackle: const response = await Moralis.EvmApi.transaction.getWalletTransactions({
“chain”: “0x1”,
“tackle”: “0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326”
}); getWalletNFTs() – Fetch the NFT stability of any pockets: const response = await Moralis.EvmApi.nft.getWalletNFTs({
“chain”: “0x1”,
“tackle”: “0xff3879b8a363aed92a6eaba8f61f1a96a9ec3c1e”
});
Should you’d wish to study extra about querying information from the Ethereum blockchain and discover extra endpoints, try the official Moralis documentation web page or be part of us on this article! Additionally, for those who want to question the Ethereum blockchain your self, don’t neglect to enroll with Moralis. You possibly can create an account totally free, and also you’ll achieve instantaneous entry to our premier Web3 APIs!
Overview
Whether or not you’re constructing an Ethereum-based decentralized change (DEX), cryptocurrency pockets, portfolio tracker, or another Web3 venture, you want a simple approach to question ERC-20 tokens, transactions, and so on., from the blockchain. Nevertheless, that is simpler mentioned than carried out. And with a number of methods to question blockchain information, how do you discover the best choice?
On this information, we’ll introduce you to the best approach to question and combine Ethereum blockchain information into your initiatives. So, whether or not you’re seeking to prototype your individual Web3 venture or scale an present dapp, this learn is for you. Let’s dive straight into it!
What’s Ethereum Knowledge?
Ethereum information – additionally sometimes known as ”Ethereum on-chain information” – is all of the publicly obtainable data saved on the Ethereum blockchain. With this information, it’s attainable to confirm transactions, monitor the motion of belongings, and achieve in-depth market insights. As such, the power to question blockchain information is a necessary a part of constructing dapps and different Web3 initiatives on Ethereum!
Ethereum blockchain information could be divided into three most important classes:
Transaction Knowledge: Transaction information is details about every Ethereum transaction. This consists of sender and receiver addresses, transaction quantities, charges, and extra. Good Contract Knowledge: Good contract information 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 information is all of the details about every block within the Ethereum chain. This consists of data similar to hashes, transactions, miner charges, time stamps, and far more.
All in all, Ethereum information refers back to the publicly obtainable data saved on the blockchain, together with transaction, good contract, and block information!
How Do You Get Knowledge from the Ethereum Blockchain?
It’s attainable to question the Ethereum blockchain in quite a few alternative ways. Beneath, we’ll discover three outstanding examples:
Run a Node: One possibility for querying the Ethereum blockchain is to run a node your self. In doing so, you may immediately work together with the Ethereum blockchain to question transactions, ERC-20 tokens, and extra. Block Explorers: It’s additionally attainable to leverage block explorers, that are platforms that mean you can seamlessly browse all transactions saved on Ethereum. For Ethereum, the go-to selection is Etherscan. Web3 APIs: You may as well use Web3 API suppliers to question the Ethereum blockchain. A Web3 API – quick for ”software programming interface” – is a set of guidelines, strategies, and protocols that mean you can work together with a blockchain community.
Whereas you should utilize nodes, block explores, and Web3 APIs to question the Ethereum blockchain, these three choices have their very own benefits and drawbacks. For instance, operating a node requires an underlying infrastructure, which could be bothersome to arrange. Moreover, whereas block explores provide you with an intuitive interface to learn blockchain transactions, they’re not designed for integrating information into dapps.
As such, in terms of Web3 improvement, your only option is to leverage a Web3 API supplier! However which Web3 API supplier is the perfect? For the reply to this query, be part of us within the following part as we introduce you to Moralis!
The Best Approach to Question the Ethereum Blockchain
The simplest approach 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 similar to MetaMask, Delta, Opera, and lots of others. As such, Moralis at the moment powers crypto and blockchain initiatives for thousands and 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 attainable to question and combine Ethereum blockchain information into your dapps with solely single traces of code. Consequently, when working with Moralis, you may construct every thing 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 should utilize to question the Ethereum blockchain:
Token API: The Token API helps each single token throughout the most important blockchains, making it the {industry}’s most complete API for ERC-20 token information. With this API, you may effortlessly fetch token balances, transactions, costs, and extra. Pockets API: The Pockets API is the {industry}’s main device 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 information, and so on., from any tackle. NFT API: The NFT API offers you every thing you should question NFT information from the Ethereum blockchain. Use this API to get NFT balances, metadata, worth information, and far 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 outstanding advantages of utilizing our industry-leading Web3 APIs when querying blockchain information:
Complete: We enrich all our API responses with tackle labels, marked information, metadata, and extra from a number of sources. This permits us to supply the {industry}’s most complete Web3 APIs. Easy and Cross-Chain Appropriate: Request and response buildings comply with the identical patterns and requirements throughout all our APIs, making it tremendous straightforward so that you can question on-chain information. Furthermore, our APIs are cross-chain suitable, which means you should utilize the identical instruments to construct on networks like Ethereum, Polygon, Solana, and lots of others. Trusted: Moralis is trusted by a whole lot of hundreds of Web3 builders and enormous enterprise prospects, together with MetaMask, Opera, Delta, and so on.
Additionally, do you know you may entry our premier Web3 APIs totally free? All it’s a must to do is enroll with Moralis, and also you’ll be capable of begin constructing dapps quicker and extra effectively as we speak!
Now, let’s dive into the code and look nearer at how you should utilize our APIs to question information from the Ethereum blockchain!
Ethereum Instance Queries: Uncover Question Ethereum for Knowledge
Let’s now dive into the primary matter 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 immediately from the Ethereum blockchain!
Question ERC-20 Tokens?
With Moralis’ Token API, you may effortlessly get any pockets’s ERC-20 token balances. Actually, all you want is a single API name to the getWalletTokenBalances() endpoint:
const response = await Moralis.EvmApi.token.getWalletTokenBalances({
“chain”: “0x1”,
“tackle”: “0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326”
});
In return for calling the endpoint above, you’ll get an array of all tokens held by the desired tackle:
[
{
“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
},
//…
]
Fetch Pockets Transactions?
With the Pockets API, you may seamlessly question the native transaction historical past of any tackle on Ethereum. Merely name the getWalletTransactions() endpoint:
const response = await Moralis.EvmApi.transaction.getWalletTransactions({
“chain”: “0x1”,
“tackle”: “0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326”
});
In return for calling the getWalletTransactions() endpoint, you’ll get an inventory containing the native full transaction historical past of the desired pockets:
//…
“end result”: [
{
“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
]
},
//…
]
}
Get NFTs?
With Moralis’ NFT API, you may simply get the NFT stability of any tackle. All you should do is name the getWalletNFTs() endpoint:
const response = await Moralis.EvmApi.nft.getWalletNFTs({
“chain”: “0x1”,
“tackle”: “0xff3879b8a363aed92a6eaba8f61f1a96a9ec3c1e”
});
Calling the getWalletNFTs() endpoint gives you a response containing an inventory of all NFTs held by the pockets in query:
//…
“end result”: [
{
“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: Question Ethereum Blockchain Knowledge in 3 Steps
We’ll now cowl a short tutorial exhibiting you methods to name the assorted endpoints of Moralis. As such, for those who comply with alongside, you’ll quickly know methods to question the Ethereum blockchain your self for ERC-20 tokens, transactions, NFT balances, and extra!
Nevertheless, for this walkthrough, we’ll be utilizing the getWalletTokenBalances() endpoint for example. And we’ll present you methods to question the Ethereum blockchain in three steps:
Get a Moralis API KeyWrite a ScriptRun the Code
Nevertheless, earlier than continuing, you need to take care of a couple of stipulations!
Stipulations
You possibly can question Ethereum blockchain information with Moralis utilizing a number of totally different programming languages, together with Python, Go, and so on. Nevertheless, for this tutorial, we’ll use JavaScript and Node.js. As such, for those who haven’t already, guarantee you might have 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 high proper of Moralis’ homepage:
With an account at hand, go to the ”Settings” tab, scroll all the way down to the ”API Keys” part, and duplicate your key:
Maintain 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 venture 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’;
attempt {
await Moralis.begin({
apiKey: “YOUR_API_KEY”
});
const response = await Moralis.EvmApi.token.getWalletTokenBalances({
“chain”: “0x1”,
“tackle”: “0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326”
});
console.log(response.uncooked);
} catch (e) {
console.error(e);
}
You then must configure the code by changing YOUR_API_KEY, which you copied earlier, and configure the tackle parameter to suit your question:
That’s it; all that is still from right here is operating 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 would 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 information doesn’t need to be tougher 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 information!
Question Ethereum with Moralis and Construct Subsequent-Gen Dapps
With Moralis’ numerous suite of APIs, you may seamlessly construct any venture you need. Nevertheless, to provide you a couple of examples, we’ll take this part to discover three outstanding 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 determine, fetch, analyze, and current blockchain information in a readable format, making it straightforward for merchants to make extra knowledgeable funding selections.
An ideal instance of a token analytics platform utilizing our Web3 APIs is Moralis Cash. Moralis Cash is a number one token explorer, blockchain information analytics device, and crypto buying and selling platform. As such, it’s primarily a one-stop store for cryptocurrency merchants.
Portfolio Trackers: Portfolio trackers are apps that enable customers to watch the efficiency of their digital belongings throughout a number of blockchains. Consequently, they primarily enable customers to arrange 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 belongings, 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 adjustments but additionally inform customers why the worth motion occurred.
Cryptocurrency Wallets: Cryptocurrency wallets are digital platforms that enable customers to retailer and handle their digital belongings, together with fungible tokens and NFTs. Probably the most outstanding cryptocurrency wallets additionally present performance for promoting, shopping for, and swapping tokens.
An ideal instance of a cryptocurrency pockets leveraging Moralis’ Web3 APIs is MetaMask. MetaMask is a number one self-custodial pockets with thousands and thousands and thousands and thousands of customers worldwide. With this premier cryptocurrency pockets, customers can effortlessly retailer, promote, purchase, and commerce digital belongings.
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 far more straight from the Ethereum blockchain. Simply try the three endpoint examples beneath:
getWalletTokenBalances() – Fetch the ERC-20 token balances of any tackle:const response = await Moralis.EvmApi.token.getWalletTokenBalances({
“chain”: “0x1”,
“tackle”: “0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326”
}); getWalletTransactions() – Question the native transaction historical past of any pockets: const response = await Moralis.EvmApi.transaction.getWalletTransactions({
“chain”: “0x1”,
“tackle”: “0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326”
}); getWalletNFTs() – get the NFT stability of any tackle: const response = await Moralis.EvmApi.nft.getWalletNFTs({
“chain”: “0x1”,
“tackle”: “0xff3879b8a363aed92a6eaba8f61f1a96a9ec3c1e”
});
So, when utilizing Moralis, you may effortlessly question ERC-20 tokens, transactions, NFTs, and far more from the Ethereum blockchain!
Should you favored this tutorial on methods to question the Ethereum blockchain, think about studying extra content material right here on the weblog. As an example, 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 expertise, don’t neglect to enroll with Moralis. You possibly can create an account totally free, and also you’ll achieve instantaneous entry to our industry-leading Web3 API suite!
