Wish to discover the simplest solution to question the Ethereum blockchain for ERC-20 tokens, transactions, NFTs, and different information? With Moralis’ top-tier APIs, you possibly can seamlessly fetch any on-chain information from any blockchain with only some strains of code. As such, when utilizing Moralis, you possibly can 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”,
“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 prefer to be taught extra about querying information from the Ethereum blockchain and discover extra endpoints, try the official Moralis documentation web page or be a part of us on this article! Additionally, if you happen to want to question the Ethereum blockchain your self, don’t overlook to enroll with Moralis. You possibly can create an account at no cost, and also you’ll acquire instantaneous 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 mission, you want a simple solution to question ERC-20 tokens, transactions, and many others., from the blockchain. Nevertheless, that is simpler stated than completed. 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 solution to question and combine Ethereum blockchain information into your tasks. So, whether or not you’re seeking to prototype your individual Web3 mission or scale an present dapp, this learn is for you. Let’s dive straight into it!
What’s Ethereum Knowledge?
Ethereum information – additionally usually known as ”Ethereum on-chain information” – is all of the publicly out there info saved on the Ethereum blockchain. With this information, it’s potential to confirm transactions, monitor the motion of belongings, and acquire 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 may be divided into three foremost classes:
Transaction Knowledge: Transaction information is details about every Ethereum transaction. This contains 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 contains info comparable to hashes, transactions, miner charges, time stamps, and rather more.
All in all, Ethereum information refers back to the publicly out there info saved on the blockchain, together with transaction, good contract, and block information!
How Do You Get Knowledge from the Ethereum Blockchain?
It’s potential to question the Ethereum blockchain in quite a few other 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 possibly can instantly work together with the Ethereum blockchain to question transactions, ERC-20 tokens, and extra. Block Explorers: It’s additionally potential to leverage block explorers, that are platforms that will let you seamlessly browse all transactions saved on Ethereum. For Ethereum, the go-to alternative is Etherscan. Web3 APIs: You may also use Web3 API suppliers to question the Ethereum blockchain. A Web3 API – quick for ”utility programming interface” – is a set of guidelines, strategies, and protocols that will let you work together with a blockchain community.
Whereas you should use nodes, block explores, and Web3 APIs to question the Ethereum blockchain, these three choices have their very own benefits and downsides. For instance, working 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 best choice 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 Approach to Question the Ethereum Blockchain
The best solution 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 comparable to MetaMask, Delta, Opera, and plenty of others. As such, Moralis presently powers crypto and blockchain tasks for hundreds of thousands 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 potential to question and combine Ethereum blockchain information into your dapps with solely single strains of code. Consequently, when working with Moralis, you possibly can construct every part from cryptocurrency wallets to decentralized finance (DeFi) platforms with ease.
For a fast introduction to our suite of growth instruments, listed below are three examples of Web3 APIs you should 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 possibly can 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 possibly can 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 essential question NFT information from the Ethereum blockchain. Use this API to get NFT balances, metadata, worth information, and rather 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 extra industry-leading interfaces!
Advantages of Utilizing Moralis
With an outline 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 Suitable: 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 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 prospects, together with MetaMask, Opera, Delta, and many others.
Additionally, do you know you possibly can entry our premier Web3 APIs at no cost? 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 immediately!
Now, let’s dive into the code and look nearer at how you should use our APIs to question information from the Ethereum blockchain!
Ethereum Instance Queries: Uncover The best way to Question Ethereum for Knowledge
Let’s now dive into the primary 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 possibly can make the most of to question ERC-20 tokens, transactions, and NFTs instantly from the Ethereum blockchain!
The best way to Question ERC-20 Tokens?
With Moralis’ Token API, you possibly can effortlessly get any pockets’s ERC-20 token balances. The truth is, 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
},
//…
]
The best way to Fetch Pockets Transactions?
With the Pockets API, you possibly can 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 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
]
},
//…
]
}
The best way to Get NFTs?
With Moralis’ NFT API, you possibly can simply get the NFT stability of any deal with. All it’s essential 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 an inventory 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: The best way to Question Ethereum Blockchain Knowledge in 3 Steps
We’ll now cowl a quick tutorial displaying you the best way to name the varied endpoints of Moralis. As such, if you happen to comply with alongside, you’ll quickly know the best way 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 the best way to question the Ethereum blockchain in three steps:
Get a Moralis API KeyWrite a ScriptRun the Code
Nevertheless, earlier than continuing, you should take care of a couple of stipulations!
Conditions
You possibly can question Ethereum blockchain information with Moralis utilizing a number of totally different programming languages, together with Python, Go, and many others. Nevertheless, for this tutorial, we’ll use JavaScript and Node.js. As such, if you happen to haven’t already, guarantee you’ve got 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 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 replica 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 mission 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 record:
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 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’s going to 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 possibly can 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 possibly can seamlessly construct any mission you need. Nevertheless, to present you a couple of 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 establish, fetch, analyze, and current blockchain information in a readable format, making it simple 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 instrument, 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 enable customers to observe the efficiency of their digital belongings throughout a number of blockchains. Consequently, they basically 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 in addition 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. Probably the most distinguished 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 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 strains of code to fetch ERC-20 tokens, transactions, and rather 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 stability of any deal with: const response = await Moralis.EvmApi.nft.getWalletNFTs({
“chain”: “0x1”,
“deal with”: “0xff3879b8a363aed92a6eaba8f61f1a96a9ec3c1e”
});
So, when utilizing Moralis, you possibly can effortlessly question ERC-20 tokens, transactions, NFTs, and rather more from the Ethereum blockchain!
If you happen to preferred this tutorial on the best way to question the Ethereum blockchain, take into account studying extra content material right here on the weblog. As an example, try our most up-to-date information on the best way 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 possibly can create an account at no cost, and also you’ll acquire instantaneous entry to our industry-leading Web3 API suite!
