Need to discover the simplest approach 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, 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 stability of any pockets: const response = await Moralis.EvmApi.nft.getWalletNFTs({
“chain”: “0x1”,
“deal with”: “0xff3879b8a363aed92a6eaba8f61f1a96a9ec3c1e”
});
If you happen to’d wish to study extra about querying information from the Ethereum blockchain and discover further endpoints, take a look at the official Moralis documentation web page or be 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’ll be able to create an account free of charge, and also you’ll acquire prompt entry to our premier Web3 APIs!
Overview
Whether or not you’re constructing an Ethereum-based decentralized change (DEX), cryptocurrency pockets, portfolio tracker, or some other Web3 undertaking, you want a straightforward approach to question ERC-20 tokens, transactions, and many others., from the blockchain. Nonetheless, that is simpler stated than finished. And with a number of methods to question blockchain information, how do you discover the most suitable choice?
On this information, we’ll introduce you to the simplest approach to question and combine Ethereum blockchain information into your tasks. So, whether or not you’re trying to prototype your individual Web3 undertaking 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 out there data saved on the Ethereum blockchain. With this information, it’s attainable to confirm transactions, monitor the motion of belongings, and acquire in-depth market insights. As such, the power to question blockchain information is an important a part of constructing dapps and different Web3 tasks on Ethereum!
Ethereum blockchain information may be divided into three principal 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 akin to hashes, transactions, miner charges, time stamps, and far more.
All in all, Ethereum information refers back to the publicly out there data saved on the blockchain, together with transaction, sensible 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. 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’ll be able to 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 will let you seamlessly browse all transactions saved on Ethereum. For Ethereum, the go-to selection is Etherscan. Web3 APIs: You can too use Web3 API suppliers to question the Ethereum blockchain. A Web3 API – brief for ”utility programming interface” – is a group of guidelines, strategies, and protocols that will let 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, operating a node requires an underlying infrastructure, which may 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 very best? 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 akin to MetaMask, Delta, Opera, and plenty of others. As such, Moralis at present 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 attainable 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 part 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 largest 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 part it’s worthwhile 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 outstanding 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 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 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 plenty of others. Trusted: Moralis is trusted by tons of of hundreds of Web3 builders and huge enterprise clients, 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 you must do is enroll with Moralis, and also you’ll be capable of begin constructing dapps sooner and extra effectively at present!
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 The way to Question Ethereum for Knowledge
Let’s now dive into the principle matter and present you the way straightforward 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 immediately from the Ethereum blockchain!
The way to Question ERC-20 Tokens?
With Moralis’ Token API, you’ll be able to effortlessly get any pockets’s ERC-20 token balances. In actual fact, 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
},
//…
]
The way 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 an inventory containing the native full transaction historical past of the required 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
]
},
//…
]
}
The way to Get NFTs?
With Moralis’ NFT API, you’ll be able to simply get the NFT stability of any deal with. All it’s worthwhile to do is name the getWalletNFTs() endpoint:
const response = await Moralis.EvmApi.nft.getWalletNFTs({
“chain”: “0x1”,
“deal with”: “0xff3879b8a363aed92a6eaba8f61f1a96a9ec3c1e”
});
Calling the getWalletNFTs() endpoint will provide you with 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: The way to Question Ethereum Blockchain Knowledge in 3 Steps
We’ll now cowl a short tutorial displaying you easy methods to name the assorted endpoints of Moralis. As such, when you comply with alongside, you’ll quickly know easy 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 easy methods to question the Ethereum blockchain in three steps:
Get a Moralis API KeyWrite a ScriptRun the Code
Nonetheless, earlier than continuing, you could take care of just a few conditions!
Conditions
You’ll be able to 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, when you haven’t already, guarantee you might have the next prepared:
Step 1: Get a Moralis API Key
If you happen to 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 all the way down to the ”API Keys” part, and replica 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 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’ll be able to 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”,
“deal with”: “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 deal with parameter to suit your question:
That’s it; all that continues to be 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’ll 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’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 offer you just a few 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 establish, fetch, analyze, and current blockchain information in a readable format, making it straightforward for merchants to make extra knowledgeable funding choices.
An excellent 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 basically a one-stop store for cryptocurrency merchants.
Portfolio Trackers: Portfolio trackers are apps that permit customers to observe the efficiency of their digital belongings throughout a number of blockchains. Consequently, they basically permit 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 in addition inform customers why the value motion occurred.
Cryptocurrency Wallets: Cryptocurrency wallets are digital platforms that permit 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 excellent 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 straightforward 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 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 stability 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!
If you happen to preferred this tutorial on easy methods to 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 easy methods to 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’ll be able to create an account free of charge, and also you’ll acquire prompt entry to our industry-leading Web3 API suite!
