Wish to discover the simplest technique to question the Ethereum blockchain for ERC-20 tokens, transactions, NFTs, and different information? With Moralis’ top-tier APIs, you’ll be able to seamlessly fetch any on-chain information from any blockchain with only some strains of code. As such, when utilizing Moralis, you’ll be able to construct decentralized purposes (dapps) sooner and extra effectively!
For a preview of what’s to return, 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 steadiness of any pockets:
const response = await Moralis.EvmApi.nft.getWalletNFTs({
"chain": "0x1",
"deal with": "0xff3879b8a363aed92a6eaba8f61f1a96a9ec3c1e"
});
Should you’d wish to study extra about querying information from the Ethereum blockchain and discover further endpoints, try the official Moralis documentation web page or be a part of us on this article! Additionally, in the event you want to question the Ethereum blockchain your self, don’t overlook to enroll with Moralis. You possibly can create an account free of charge, and also you’ll achieve prompt entry to our premier Web3 APIs!
Overview
Whether or not you’re constructing an Ethereum-based decentralized alternate (DEX), cryptocurrency pockets, portfolio tracker, or another Web3 undertaking, you want a straightforward technique to question ERC-20 tokens, transactions, and many others., from the blockchain. Nonetheless, that is simpler stated than completed. 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 simplest technique to question and combine Ethereum blockchain information into your tasks. So, whether or not you’re trying to prototype your personal Web3 undertaking or scale an current 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 doable to confirm transactions, observe 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 tasks on Ethereum!
Ethereum blockchain information might be divided into three major 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 sensible 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 reminiscent of 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, sensible contract, and block information!
How Do You Get Knowledge from the Ethereum Blockchain?
It’s doable to question the Ethereum blockchain in quite a few alternative ways. Under, 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’ll be able to instantly work together with the Ethereum blockchain to question transactions, ERC-20 tokens, and extra.
- Block Explorers: It’s additionally doable to leverage block explorers, that are platforms that help you seamlessly browse all transactions saved on Ethereum. For Ethereum, the go-to alternative is Etherscan.
- Web3 APIs: It’s also possible to use Web3 API suppliers to question the Ethereum blockchain. A Web3 API – brief for ”software programming interface” – is a group of guidelines, strategies, and protocols that help you 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, working a node requires an underlying infrastructure, which might be bothersome to arrange. Moreover, whereas block explores offer you an intuitive interface to learn blockchain transactions, they’re not designed for integrating information into dapps.
As such, with regards to Web3 growth, your only option is to leverage a Web3 API supplier! However which Web3 API supplier is the most effective? For the reply to this query, be a part of us within the following part as we introduce you to Moralis!
The Best Option to Question the Ethereum Blockchain
The best technique 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 reminiscent of MetaMask, Delta, Opera, and lots of others. As such, Moralis at the moment powers crypto and blockchain tasks for tens of millions of finish customers throughout the globe!
In Moralis’ premier suite of growth 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 doable to question and combine Ethereum blockchain information into your dapps with solely single strains of code. Consequently, when working with Moralis, you’ll be able to construct every thing from cryptocurrency wallets to decentralized finance (DeFi) platforms with ease.
For a fast introduction to our suite of growth instruments, listed here 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’ll be able to 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 strains of code, you’ll be able to seamlessly use the Pockets API to fetch balances, transactions, profile information, and many others., from any deal with.
- NFT API: The NFT API provides you every thing you have to 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 growth instruments, please go to our Web3 API web page, the place you’ll discover greater than ten further industry-leading interfaces!
Advantages of Utilizing Moralis
With an summary of Moralis, let’s now discover some distinguished advantages of utilizing our industry-leading Web3 APIs when querying blockchain information:
- Complete: We enrich all our API responses with deal with 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 simple 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 bunch of hundreds of Web3 builders and enormous enterprise prospects, together with MetaMask, Opera, Delta, and many others.
Additionally, do you know you’ll be able to entry our premier Web3 APIs free of charge? All it’s a must to do is join with Moralis, and also you’ll be capable to begin constructing dapps sooner and extra effectively at this time!
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 Easy methods to Question Ethereum for Knowledge
Let’s now dive into the principle matter and present you ways simple it’s to question the Ethereum blockchain when utilizing Moralis. To take action, we’ll dive into three examples of endpoints you’ll be able to make the most of to question ERC-20 tokens, transactions, and NFTs instantly from the Ethereum blockchain!
Easy methods to Question ERC-20 Tokens?
With Moralis’ Token API, you’ll be able to effortlessly get any pockets’s ERC-20 token balances. In truth, 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 required 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
},
//...
]
Easy methods to Fetch Pockets Transactions?
With the Pockets API, you’ll be able to 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 a listing containing the native full transaction historical past of the required 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
]
},
//...
]
}
Easy methods to Get NFTs?
With Moralis’ NFT API, you’ll be able to simply get the NFT steadiness of any deal with. All you have to 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 a listing 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: Easy methods to Question Ethereum Blockchain Knowledge in 3 Steps
We’ll now cowl a short tutorial displaying you how one can name the varied endpoints of Moralis. As such, in the event you comply with alongside, you’ll quickly know how one can 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 how one can question the Ethereum blockchain in three steps:
- Get a Moralis API Key
- Write a Script
- Run the Code
Nonetheless, earlier than continuing, you will need to take care of a couple of conditions!
Stipulations
You possibly can question Ethereum blockchain information with Moralis utilizing a number of totally different programming languages, together with Python, Go, and many others. Nonetheless, for this tutorial, we’ll use JavaScript and Node.js. As such, in the event you haven’t already, guarantee you may have the next prepared:
Step 1: Get a Moralis API Key
Should you haven’t already, join 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 all the way down to the ”API Keys” part, and replica your key:
Hold 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 undertaking 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 continues to be 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 should 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 more difficult than that. From right here, you’ll be able to 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’ various suite of APIs, you’ll be able to seamlessly construct any undertaking you need. Nonetheless, to present you a couple of 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 determine, fetch, analyze, and current blockchain information in a readable format, making it simple for merchants to make extra knowledgeable funding choices.
A fantastic instance of a token analytics platform utilizing our Web3 APIs is Moralis Cash. Moralis Cash is a number one token explorer, blockchain information analytics software, 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 value 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. Essentially the most distinguished cryptocurrency wallets additionally present performance for promoting, shopping for, and swapping tokens.
A fantastic instance of a cryptocurrency pockets leveraging Moralis’ Web3 APIs is MetaMask. MetaMask is a number one self-custodial pockets with tens of millions and tens of millions 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 simple to question the Ethereum blockchain. With our complete APIs, you solely want single strains 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 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 steadiness of any deal with:
const response = await Moralis.EvmApi.nft.getWalletNFTs({
"chain": "0x1",
"deal with": "0xff3879b8a363aed92a6eaba8f61f1a96a9ec3c1e"
});
So, when utilizing Moralis, you’ll be able to effortlessly question ERC-20 tokens, transactions, NFTs, and far more from the Ethereum blockchain!
Should you preferred this tutorial on how one can 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 how one can construct on OP Mainnet. Additionally, if you wish to begin leveraging the complete energy of blockchain expertise, don’t overlook to enroll with Moralis. You possibly can create an account free of charge, and also you’ll achieve prompt entry to our industry-leading Web3 API suite!
