Need to discover the simplest method to question the Ethereum blockchain for ERC-20 tokens, transactions, NFTs, and different knowledge? With Moralis’ top-tier APIs, you possibly can seamlessly fetch any on-chain knowledge from any blockchain with just a few traces of code. As such, when utilizing Moralis, you possibly can construct decentralized purposes (dapps) sooner 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", "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 study extra about querying knowledge from the Ethereum blockchain and discover extra 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 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 trade (DEX), cryptocurrency pockets, portfolio tracker, or some other Web3 mission, you want a simple method to question ERC-20 tokens, transactions, and so on., from the blockchain. Nonetheless, 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 simplest method to question and combine Ethereum blockchain knowledge into your initiatives. So, whether or not you’re seeking to prototype your personal Web3 mission 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 obtainable data saved on the Ethereum blockchain. With this knowledge, it’s doable to confirm transactions, observe the motion of belongings, and acquire in-depth market insights. As such, the power to question blockchain knowledge is a vital a part of constructing dapps and different Web3 initiatives on Ethereum!
Ethereum blockchain knowledge could 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 good 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 data corresponding to hashes, transactions, miner charges, time stamps, and way more.
All in all, Ethereum knowledge refers back to the publicly obtainable data saved on the blockchain, together with transaction, good contract, and block knowledge!
How Do You Get Information 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 possibly can straight 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 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 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 drawbacks. For instance, working 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 knowledge into dapps.
As such, in the case of Web3 growth, your best choice is to leverage a Web3 API supplier! However which Web3 API supplier is the perfect? 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 method 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 corresponding to MetaMask, Delta, Opera, and lots of others. As such, Moralis at present powers crypto and blockchain initiatives 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 doable to question and combine Ethereum blockchain knowledge into your dapps with solely single traces of code. Consequently, when working with Moralis, you possibly can construct every little thing 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 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 possibly can 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 possibly can seamlessly use the Pockets API to fetch balances, transactions, profile knowledge, and so on., from any deal with.
- NFT API: The NFT API offers you every little thing you want to question NFT knowledge from the Ethereum blockchain. Use this API to get NFT balances, metadata, worth knowledge, and way 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 knowledge:
- Complete: We enrich all our API responses with deal with labels, marked knowledge, metadata, and extra from a number of sources. This enables us to offer the {industry}’s most complete Web3 APIs.
- Easy and Cross-Chain Suitable: Request and response constructions 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 appropriate, that means you need to use 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 so on.
Additionally, do you know you possibly can entry our premier Web3 APIs at no cost? All it’s important to do is enroll with Moralis, and also you’ll have the ability to begin constructing dapps sooner and extra effectively right now!
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 Question Ethereum for Information
Let’s now dive into the principle subject and present you the way 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 straight from the Ethereum blockchain!
Question ERC-20 Tokens?
With Moralis’ Token API, you possibly can 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 }, //... ]
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 a listing 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 ] }, //... ] }
Get NFTs?
With Moralis’ NFT API, you possibly can simply get the NFT steadiness of any deal with. All you want 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:
//... "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: Question Ethereum Blockchain Information in 3 Steps
We’ll now cowl a quick tutorial displaying you tips on how to name the varied endpoints of Moralis. As such, when you observe alongside, you’ll quickly know tips on how 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 tips on how to question the Ethereum blockchain in three steps:
- Get a Moralis API Key
- Write a Script
- Run the Code
Nonetheless, earlier than continuing, you could take care of just a few stipulations!
Stipulations
You may question Ethereum blockchain knowledge with Moralis utilizing a number of completely different programming languages, together with Python, Go, and so on. Nonetheless, for this tutorial, we’ll use JavaScript and Node.js. As such, when you haven’t already, guarantee you could have the next prepared:
Step 1: Get a Moralis API Key
In the event you 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 right 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 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'; 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 is 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 knowledge doesn’t need to be more difficult than that. From right here, you possibly can 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 possibly can seamlessly construct any mission you need. Nonetheless, to present 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 knowledge in a readable format, making it simple for merchants to make extra knowledgeable funding choices.
An incredible instance of a token analytics platform utilizing our Web3 APIs is Moralis Cash. Moralis Cash is a number one token explorer, blockchain knowledge 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 enable customers to watch the efficiency of their digital belongings throughout a number of blockchains. Consequently, they basically 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 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 incredible 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 way 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 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 possibly can effortlessly question ERC-20 tokens, transactions, NFTs, and way more from the Ethereum blockchain!
In the event you preferred this tutorial on tips on how to question the Ethereum blockchain, contemplate studying extra content material right here on the weblog. For example, take a look at our most up-to-date information on tips on 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 at no cost, and also you’ll acquire instantaneous entry to our industry-leading Web3 API suite!