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Need to discover the best strategy 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 only some strains of code. As such, when utilizing Moralis, you may construct decentralized functions (dapps) quicker and extra effectively!
For a preview of what’s to return, take a look at 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”
});
In case you’d wish to study extra about querying knowledge from the Ethereum blockchain and discover further endpoints, take a look at 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 overlook to enroll with Moralis. You may create an account free of charge, and also you’ll achieve immediate entry to our premier Web3 APIs!
Overview
Whether or not you’re constructing an Ethereum-based decentralized trade (DEX), cryptocurrency pockets, portfolio tracker, or another Web3 challenge, you want a straightforward strategy to question ERC-20 tokens, transactions, and so forth., from the blockchain. Nevertheless, that is simpler mentioned than executed. 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 best strategy to question and combine Ethereum blockchain knowledge into your tasks. So, whether or not you’re seeking to prototype your individual Web3 challenge or scale an present dapp, this learn is for you. Let’s dive straight into it!
What’s Ethereum Information?
Ethereum knowledge – additionally usually known as ”Ethereum on-chain knowledge” – is all of the publicly out there info saved on the Ethereum blockchain. With this knowledge, it’s attainable to confirm transactions, monitor the motion of property, and achieve in-depth market insights. As such, the power to question blockchain knowledge is an important a part of constructing dapps and different Web3 tasks on Ethereum!
Ethereum blockchain knowledge might be divided into three principal classes:
Transaction Information: Transaction knowledge is details about every Ethereum transaction. This consists of sender and receiver addresses, transaction quantities, charges, and extra. Sensible Contract Information: Sensible contract knowledge refers to all of the details about sensible contracts deployed on Ethereum, together with a contract’s code, logs, state, and occasions. Block Information: Block knowledge is all of the details about every block within the Ethereum chain. This consists of info akin to hashes, transactions, miner charges, time stamps, and far more.
All in all, Ethereum knowledge refers back to the publicly out there info saved on the blockchain, together with transaction, sensible contract, and block knowledge!
How Do You Get Information from the Ethereum Blockchain?
It’s attainable to question the Ethereum blockchain in quite a few alternative ways. Under, we’ll discover three outstanding examples:
Run a Node: One choice 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 attainable to leverage block explorers, that are platforms that assist you to 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 – quick for ”software programming interface” – is a set of guidelines, strategies, and protocols that assist you to 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 might be bothersome to arrange. Moreover, whereas block explores provide you with an intuitive interface to learn blockchain transactions, they’re not designed for integrating knowledge into dapps.
As such, in the case of Web3 improvement, 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 Solution to Question the Ethereum Blockchain
The simplest strategy 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 akin to MetaMask, Delta, Opera, and plenty of others. As such, Moralis presently powers crypto and blockchain tasks for tens of millions 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 knowledge into your dapps with solely single strains 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 instrument for constructing wallets and integrating pockets performance into your dapps. With single strains of code, you may seamlessly use the Pockets API to fetch balances, transactions, profile knowledge, and so forth., from any tackle. NFT API: The NFT API offers you every part you might want to question NFT knowledge from the Ethereum blockchain. Use this API to get NFT balances, metadata, worth knowledge, 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 further industry-leading interfaces!
Advantages of Utilizing Moralis
With an summary of Moralis, let’s now discover some outstanding advantages of utilizing our industry-leading Web3 APIs when querying blockchain knowledge:
Complete: We enrich all our API responses with tackle labels, marked knowledge, metadata, and extra from a number of sources. This enables us to supply the {industry}’s most complete Web3 APIs. Easy and Cross-Chain Suitable: Request and response buildings observe the identical patterns and requirements throughout all our APIs, making it tremendous simple 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 plenty of others. Trusted: Moralis is trusted by a whole lot of hundreds of Web3 builders and enormous enterprise clients, together with MetaMask, Opera, Delta, and so forth.
Additionally, do you know you may entry our premier Web3 APIs free of charge? All it’s important to do is join with Moralis, and also you’ll have the ability to begin constructing dapps quicker and extra effectively at present!
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 Tips on how to Question Ethereum for Information
Let’s now dive into the principle subject 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 may make the most of to question ERC-20 tokens, transactions, and NFTs straight from the Ethereum blockchain!
Tips on how to Question ERC-20 Tokens?
With Moralis’ Token API, you may 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”,
“tackle”: “0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326”
});
In return for calling the endpoint above, you’ll get an array of all tokens held by the required 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
},
//…
]
Tips on how to 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 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
]
},
//…
]
}
Tips on how to Get NFTs?
With Moralis’ NFT API, you may simply get the NFT stability of any tackle. All you might want to 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 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: Tips on how to Question Ethereum Blockchain Information in 3 Steps
We’ll now cowl a short tutorial exhibiting you learn how to name the assorted endpoints of Moralis. As such, when you observe alongside, you’ll quickly know learn how 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 learn how to question the Ethereum blockchain in three steps:
Get a Moralis API KeyWrite a ScriptRun the Code
Nevertheless, earlier than continuing, you will need to cope with a number of stipulations!
Stipulations
You may question Ethereum blockchain knowledge with Moralis utilizing a number of totally different programming languages, together with Python, Go, and so forth. Nevertheless, for this tutorial, we’ll use JavaScript and Node.js. As such, when you haven’t already, guarantee you will have the next prepared:
Step 1: Get a Moralis API Key
In case you haven’t already, join 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 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 challenge 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 may then open your ”bundle.json” file and add ”sort”: ”module” to the checklist:
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 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 knowledge doesn’t need to be more difficult than that. From right here, you may observe 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 challenge you need. Nevertheless, to present you a number of examples, we’ll take this part to discover three outstanding use instances 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 simple for merchants to make extra knowledgeable funding selections.
A terrific instance of a token analytics platform utilizing our Web3 APIs is Moralis Cash. Moralis Cash is a number one token explorer, blockchain knowledge analytics instrument, 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 property throughout a number of blockchains. Consequently, they primarily 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 in addition inform customers why the worth 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. Essentially the most outstanding cryptocurrency wallets additionally present performance for promoting, shopping for, and swapping tokens.
A terrific 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 property.
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 take a look at 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!
In case you preferred this tutorial on learn how to question the Ethereum blockchain, take into account studying extra content material right here on the weblog. As an example, take a look at our most up-to-date information on learn how to construct on OP Mainnet. Additionally, if you wish to begin leveraging the total energy of blockchain know-how, don’t overlook to enroll with Moralis. You may create an account free of charge, and also you’ll achieve immediate entry to our industry-leading Web3 API suite!
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