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Need to discover the simplest strategy 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 only some traces of code. As such, when utilizing Moralis, you may construct decentralized functions (dapps) sooner and extra effectively!
For a preview of what’s to come back, take a look at the endpoints under 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”
});
In the event you’d prefer to be taught extra about querying information from the Ethereum blockchain and discover extra endpoints, take a look at the official Moralis documentation web page or be part of us on this article! Additionally, if you happen to want to question the Ethereum blockchain your self, don’t neglect to enroll with Moralis. You may create an account at no cost, 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 every other Web3 venture, you want a straightforward strategy to question ERC-20 tokens, transactions, and so on., from the blockchain. Nonetheless, that is simpler mentioned than performed. 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 strategy to question and combine Ethereum blockchain information into your tasks. 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 info 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 flexibility to question blockchain information is an important a part of constructing dapps and different Web3 tasks on Ethereum!
Ethereum blockchain information could be divided into three major classes:
Transaction Knowledge: Transaction information is details about every Ethereum transaction. This contains sender and receiver addresses, transaction quantities, charges, and extra. Sensible Contract Knowledge: Sensible 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 contains info akin to hashes, transactions, miner charges, time stamps, and rather more.
All in all, Ethereum information refers back to the publicly obtainable info saved on the blockchain, together with transaction, good 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 choice 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 doable to leverage block explorers, that are platforms that permit you to seamlessly browse all transactions saved on Ethereum. For Ethereum, the go-to alternative 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 group of guidelines, strategies, and protocols that permit 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 downsides. For instance, operating a node requires an underlying infrastructure, which could 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, in relation to Web3 improvement, the best choice is to leverage a Web3 API supplier! However which Web3 API supplier is one of the best? For the reply to this query, be part of us within the following part as we introduce you to Moralis!
The Best Technique to Question the Ethereum Blockchain
The best 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 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 doable 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 here 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 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 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 information, and so on., from any deal with. 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, value information, 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 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 enables us to offer 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 appropriate, 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 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 at no cost? All you must do is join with Moralis, and also you’ll be capable of begin constructing dapps sooner 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 information from the Ethereum blockchain!
Ethereum Instance Queries: Uncover 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 may make the most of to question ERC-20 tokens, transactions, and NFTs immediately from the Ethereum blockchain!
Methods 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
},
//…
]
Methods 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 a listing 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
]
},
//…
]
}
Methods to Get NFTs?
With Moralis’ NFT API, you may simply get the NFT steadiness 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 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: Methods to Question Ethereum Blockchain Knowledge in 3 Steps
We’ll now cowl a short tutorial exhibiting you name the varied endpoints of Moralis. As such, if you happen to comply with alongside, you’ll quickly know 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 question the Ethereum blockchain in three steps:
Get a Moralis API KeyWrite a ScriptRun the Code
Nonetheless, earlier than continuing, you need to cope with just a few stipulations!
Conditions
You may question Ethereum blockchain information 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, if you happen to haven’t already, guarantee you’ve the next prepared:
Step 1: Get a Moralis API Key
In the event 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 all the way down to the ”API Keys” part, and duplicate 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 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 may then open your ”bundle.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”,
“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 operating the code!
Step 3: Run the Code
Open a brand new terminal and run the command under 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 must 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 information!
Question Ethereum with Moralis and Construct Subsequent-Gen Dapps
With Moralis’ various suite of APIs, you may seamlessly construct any venture you need. Nonetheless, to offer you just a few examples, we’ll take this part to discover three distinguished 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 determine, fetch, analyze, and current blockchain information in a readable format, making it simple for merchants to make extra knowledgeable funding choices.
A terrific 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 observe 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 distinguished 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 hundreds of thousands and hundreds of 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 simple 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 take a look at the three endpoint examples under:
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 may effortlessly question ERC-20 tokens, transactions, NFTs, and rather more from the Ethereum blockchain!
In the event you appreciated this tutorial on question the Ethereum blockchain, think about studying extra content material right here on the weblog. For example, take a look at our most up-to-date information on 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 may create an account at no cost, and also you’ll achieve prompt entry to our industry-leading Web3 API suite!
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