Uncover the simplest approach to get ERC-20 token balances utilizing RPC nodes. Moralis’ Prolonged RPC Strategies can help you seamlessly fetch any pockets’s token balances with a single RPC-style request. Curious to see the way it works? Try the eth_getTokenBalances endpoint in motion:
import fetch from ‘node-fetch’;
const choices = {
methodology: ‘POST’,
headers: {
settle for: ‘software/json’,
‘content-type’: ‘software/json’
},
physique: JSON.stringify({
“jsonrpc”: “2.0”,
“id”: 1,
“methodology”: “eth_getTokenBalances”,
“params”: [
{
“address”: “0xcB1C1FdE09f811B294172696404e88E658659905”,
}
]
})
};
fetch(‘YOUR_NODE_URL’, choices)
.then(response => response.json())
.then(response => console.log(response))
.catch(err => console.error(err));
With one name, you’ll obtain the ERC-20 stability of the desired pockets. Right here’s a pattern response:
{
//…
outcome: [
{
token_address: ‘0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2’,
name: ‘Wrapped Ether’,
symbol: ‘WETH’,
decimals: 18,
logo: ‘https://logo.developers.moralis.com/0x1_0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2_a578c5277503e547a072ae32517254ca’,
thumbnail: ‘https://logo.developers.moralis.com/0x1_0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2_a578c5277503e547a072ae32517254ca’,
balance: ‘10000000000000000’,
possible_spam: false,
verified_contract: true,
total_supply: ‘2746607222348759943423350’,
total_supply_formatted: ‘2746607.22234875994342335’,
percentage_relative_to_total_supply: 3.64085549569e-7
},
//…
]
}
That’s all it takes – fetching ERC-20 token balances with RPC nodes has by no means been simpler. For a deeper dive, be part of us on this detailed tutorial or try our official Prolonged RPC Strategies documentation.
Able to get began? Enroll with Moralis, and also you’ll be capable of get ERC-20 token balances with RPC nodes in a heartbeat!
Overview
Whether or not you’re constructing a portfolio tracker, cryptocurrency pockets, tax platform, or different Web3 tasks, you’ll possible want entry to ERC-20 token balances. Historically, fetching these balances utilizing RPC nodes has been cumbersome, requiring a number of requests and guide placing collectively knowledge. However there’s a greater method: Moralis’ Prolonged RPC Strategies.
With our Prolonged RPC Strategies, you may simply question decoded, human-readable knowledge by means of RPC-style requests. Immediately entry ERC-20 token balances, decoded transactions, token costs, and extra with minimal effort.
Curious the way it works? On this tutorial, we’ll present you use Moralis to get ERC-20 token balances by way of RPC nodes. Let’s dive in!
What are ERC-20 Token Balances?
Put merely, ERC-20 token balances seek advice from the variety of tokens held by a particular pockets or deal with. Since varied kinds of ERC-20 tokens exist, a pockets can maintain a number of token balances concurrently. For instance, a consumer may need 5 Wrapped BTC, 100 USDC, and 1,000,000 Shiba Inu tokens.
Why are ERC-20 token balances necessary for builders?
ERC-20 token balances are important for a lot of Web3 purposes. Listed below are three key examples:
Wallets: Cryptocurrency wallets must retrieve and show ERC-20 token balances so customers can see which tokens they personal and in what quantities.
Portfolio Trackers: Portfolio trackers depend on ERC-20 token balances to precisely monitor customers’ property, monitor worth modifications, and replace customers on their total portfolio efficiency.
Tax Platforms: To generate exact tax experiences, tax platforms should entry the ERC-20 token balances of their customers.
These are only a few examples; ERC-20 token balances are needed for many Web3 dapps!
Introducing Prolonged RPC Strategies – The Best Technique to Get ERC-20 Token Balances with RPC Nodes
Moralis’ Prolonged RPC Strategies streamline the method of querying decoded, human-readable knowledge utilizing RPC nodes, making dapp improvement extra accessible.
Key knowledge you may entry:
eth_getTokenBalances: Retrieve ERC-20 token balances by pockets.
eth_getTransactions: Fetch native transactions by pockets deal with.
eth_getDecodedTransactions: Entry detailed pockets transaction historical past by deal with.
eth_getTokenPrice: Get costs by token addresses.
eth_getTokenMetadata: Receive ERC-20 metadata by token deal with.
eth_getNFTBalances: Retrieve NFTs by pockets deal with.
eth_getNFTCollections: Entry NFT collections by pockets.
In essence, our Prolonged RPC Strategies make it simple so that you can question and combine decoded, human-readable crypto knowledge into your dapps!
Why Do You Want Prolonged RPC Strategies?
Querying on-chain knowledge utilizing typical RPC strategies will be cumbersome. These strategies aren’t optimized for frequent queries like, “What ERC-20 tokens does pockets X maintain?” To get this info, you usually must make a number of requests and manually compile the information, which is time-consuming and resource-intensive. Fortuitously, that’s the place Moralis’ Prolonged RPC Strategies are available.
Our Prolonged RPC Strategies allow you to simply get ERC-20 token balances, pockets historical past, NFT balances, and extra by means of easy RPC-style requests, making fetching crypto knowledge by way of nodes extra environment friendly than ever.
Need to see the way it works? Try the tutorial beneath to discover ways to use our Prolonged RPC Strategies to get ERC-20 token balances!
3-Step Tutorial: How one can Get ERC-20 Token Balances with RPC Nodes
We’ll now present you seamlessly get ERC-20 token balances utilizing RPC nodes. Because of the accessibility of our Prolonged RPC Strategies, you may get hold of this knowledge in three easy steps:
Enroll with Moralis & create a node.
Write a script calling the eth_getTokenBalances endpoint.
Run the code.
Nevertheless, earlier than you may start, you have to deal with a number of conditions.
Conditions
Earlier than beginning the tutorial, guarantee you’ve the next prepared:
Step 1: Signal Up with Moralis & Create a Node
Click on the “Begin for Free” button on the high proper to arrange your Moralis account:
From there, log in, go to the “Nodes” tab, and click on “+ Create Node”:
Subsequent, choose “Ethereum,” adopted by “Mainnet,” and click on the “Create Node” button:
It will offer you two node URLs. Copy and save one of many URLs, as you’ll want it within the subsequent part:
Step 2: Write a Script Calling the eth_getTokenBalances Endpoint
Begin by opening Visible Studio Code or your most well-liked IDE, then arrange a brand new folder and initialize a challenge utilizing the terminal command offered:
npm init
After that, set up the required dependencies utilizing the given command:
npm set up node-fetch –save
npm set up moralis @moralisweb3/common-evm-utils
In your “bundle.json” file, you’ll want to add “kind”: ”module”:
Subsequent, create a brand new “index.js” file and insert the offered code:
import fetch from ‘node-fetch’;
const choices = {
methodology: ‘POST’,
headers: {
settle for: ‘software/json’,
‘content-type’: ‘software/json’
},
physique: JSON.stringify({
“jsonrpc”: “2.0”,
“id”: 1,
“methodology”: “eth_getTokenBalances”,
“params”: [
{
“address”: “0xcB1C1FdE09f811B294172696404e88E658659905”,
}
]
})
};
fetch(‘YOUR_NODE_URL’, choices)
.then(response => response.json())
.then(response => console.log(response))
.catch(err => console.error(err));
Exchange YOUR_NODE_URL with the node URL you copied earlier, and regulate the deal with parameter as wanted to suit your question:
That’s it. From right here, you simply must run the code.
Step 3: Run the Code
Open a brand new terminal and run the offered command in your challenge’s root folder:
node index.js
In return, you’ll get the ERC-20 token balances of the desired pockets utilizing your RPC node. Right here’s an instance of what it’d seem like:
{
//…
outcome: [
{
token_address: ‘0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2’,
name: ‘Wrapped Ether’,
symbol: ‘WETH’,
decimals: 18,
logo: ‘https://logo.developers.moralis.com/0x1_0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2_a578c5277503e547a072ae32517254ca’,
thumbnail: ‘https://logo.developers.moralis.com/0x1_0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2_a578c5277503e547a072ae32517254ca’,
balance: ‘10000000000000000’,
possible_spam: false,
verified_contract: true,
total_supply: ‘2746607222348759943423350’,
total_supply_formatted: ‘2746607.22234875994342335’,
percentage_relative_to_total_supply: 3.64085549569e-7
},
//…
]
}
And that’s it! It’s that simple to get ERC-20 token balances from RPC nodes utilizing Moralis!
To be taught extra about how this works, please try the eth_getTokenBalances documentation web page.
Additionally, wish to see how you should utilize this knowledge in apply? Try the Moralis YouTube video beneath, the place considered one of our builders reveals you construct a portfolio app utilizing simply the eth_getTokenBalances endpoint:
Past How one can Get ERC-20 Token Balances with RPC Nodes – Exploring Different Prolonged RPC Strategies
Fetching ERC-20 token balances with nodes is only one facet of our Prolonged RPC Strategies. Within the following sections, we’ll discover 5 different strategies and spotlight the responses you get from them:
eth_getDecodedTransactions
eth_getTokenPrice
eth_getTokenMetadata
eth_getNFTBalances
eth_getNFTCollections
So, with out additional ado, let’s take a more in-depth take a look at eth_getDecodedTransactions!
eth_getDecodedTransactions
With eth_getDecodedTransactions, you may seamlessly fetch the transaction historical past of a particular pockets deal with, enriched with decoded knowledge. Furthermore, this methodology encompasses native transfers, ERC-20 transactions, NFT transfers, and extra.
Right here’s an instance of name this premier methodology:
import fetch from ‘node-fetch’;
const choices = {
methodology: ‘POST’,
headers: {
settle for: ‘software/json’,
‘content-type’: ‘software/json’
},
physique: JSON.stringify({
“jsonrpc”: “2.0”,
“id”: 1,
“methodology”: “eth_getDecodedTransactions”,
“params”: [
{
“address”: “0xda74Ac6b69Ff4f1B6796cdDf61fBDd4A5f68525f”,
}
]
})
};
fetch(‘YOUR_NODE_URL’, choices)
.then(response => response.json())
.then(response => console.log(response))
.catch(err => console.error(err));
In return for calling the script above, you’ll obtain the total transaction historical past of the pockets. Moreover, every transaction is enriched with a human-readable occasion abstract, class tag, logos, addresses, and extra. Right here’s an instance of what it’d seem like:
{
//…
“outcome”: [
{
“block_hash”: “0x660274d577cd20b0b82c1bff5f3c5641ba6027544e005f9256d5add9c7447920”,
“block_number”: “19868695”,
“block_timestamp”: “2024-05-14T14:00:23.000Z”,
“from_address”: “0xda74ac6b69ff4f1b6796cddf61fbdd4a5f68525f”,
“from_address_label”: null,
“from_address_entity”: null,
“from_address_entity_logo”: null,
“to_address”: “0xdac17f958d2ee523a2206206994597c13d831ec7”,
“to_address_label”: “Tether USD (USDT)”,
“to_address_entity”: null,
“to_address_entity_logo”: null,
“gas”: “55331”,
“gas_price”: “13623172301”,
“hash”: “0xc565260238f59fc3f35b74f3011375c7d637db9b075f77d342c30d19f946272e”,
“nonce”: “14”,
“receipt_cumulative_gas_used”: “13917979”,
“receipt_gas_used”: “41309”,
“receipt_status”: “1”,
“transaction_fee”: “0.000562759624582009”,
“transaction_index”: “75”,
“value”: “0”,
“receipt_contract_address”: null,
“nft_transfers”: [],
“erc20_transfers”: [
{
“token_name”: “Tether USD”,
“token_symbol”: “USDT”,
“token_logo”: “https://logo.developers.moralis.com/0x1_0xdac17f958d2ee523a2206206994597c13d831ec7_3282f332c2ac2948929f01fe7d921c51”,
“token_decimals”: “6”,
“from_address”: “0xda74ac6b69ff4f1b6796cddf61fbdd4a5f68525f”,
“from_address_entity”: null,
“from_address_entity_logo”: null,
“from_address_label”: null,
“to_address”: “0x28c6c06298d514db089934071355e5743bf21d60”,
“to_address_label”: “Binance 14”,
“to_address_entity”: “Binance”,
“to_address_entity_logo”: “https://entities-logos.s3.us-east-1.amazonaws.com/binance.png”,
“address”: “0xdac17f958d2ee523a2206206994597c13d831ec7”,
“log_index”: 338,
“value”: “50000000000”,
“possible_spam”: false,
“verified_contract”: true,
“direction”: “send”,
“value_formatted”: “50000”
}
],
“method_label”: “switch”,
“native_transfers”: [],
“abstract”: “Despatched 50,000 USDT to Binance 14”,
“possible_spam”: false,
“class”: “token ship”
},
//…
}
]
}
eth_getTokenPrice
With eth_getTokenPrice, now you can seamlessly fetch token costs primarily based on contract addresses utilizing RPC-style strategies. You possibly can retrieve costs for stablecoins like USDT, meme cash like Shiba Inu, and every little thing in between.
Right here’s an instance of what it seems to be like when calling the endpoint:
import fetch from ‘node-fetch’;
const choices = {
methodology: ‘POST’,
headers: {
settle for: ‘software/json’,
‘content-type’: ‘software/json’
},
physique: JSON.stringify({
“jsonrpc”: “2.0”,
“id”: 1,
“methodology”: “eth_getTokenPrice”,
“params”: [
{
“address”: “0xdAC17F958D2ee523a2206206994597C13D831ec7”,
“include”: “percent_change”
}
]
})
};
fetch(YOUR_NODE_URL, choices)
.then(response => response.json())
.then(response => console.log(response))
.catch(err => console.error(err));
In return for operating the script above, you obtain each the USD and native worth of the desired token. Moreover, the response is enriched with worth modifications over time, a token brand, token decimals, and extra. Right here’s an instance of what the response seems to be like:
{
//…
outcome: {
tokenName: ‘Tether USD’,
tokenSymbol: ‘USDT’,
tokenLogo: ‘https://brand.builders.moralis.com/0x1_0xdac17f958d2ee523a2206206994597c13d831ec7_3282f332c2ac2948929f01fe7d921c51’,
tokenDecimals: ‘6’,
nativePrice: {
worth: ‘375760131462618’,
decimals: 18,
title: ‘Ether’,
image: ‘ETH’,
deal with: ‘0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2’
},
usdPrice: 1.0000402502911871,
usdPriceFormatted: ‘1.000040250291187229’,
’24hrPercentChange’: ‘-0.04543241491797881’,
exchangeName: ‘Uniswap v3’,
exchangeAddress: ‘0x1F98431c8aD98523631AE4a59f267346ea31F984’,
tokenAddress: ‘0xdac17f958d2ee523a2206206994597c13d831ec7’,
priceLastChangedAtBlock: ‘20534105’,
possibleSpam: false,
verifiedContract: true,
pairAddress: ‘0xc7bbec68d12a0d1830360f8ec58fa599ba1b0e9b’,
pairTotalLiquidityUsd: ‘7148031.13’
}
}
eth_getTokenMetadata
With eth_getTokenMetadata, you may seamlessly fetch the metadata of an ERC-20 token. Furthermore, this endpoint covers every little thing from meme cash like Shiba Inu to stablecoins like USDC.
Right here’s an instance of the endpoint in motion:
import fetch from ‘node-fetch’;
const choices = {
methodology: ‘POST’,
headers: {
settle for: ‘software/json’,
‘content-type’: ‘software/json’
},
physique: JSON.stringify({
“jsonrpc”: “2.0”,
“id”: 1,
“methodology”: “eth_getTokenMetadata”,
“params”: [
{
“addresses”: [
“0xdac17f958d2ee523a2206206994597c13d831ec7”
]
}
]
})
};
fetch(‘YOUR_NODE_URL’, choices)
.then(response => response.json())
.then(response => console.log(response))
.catch(err => console.error(err));
In return for calling the endpoint above, you get the metadata of the desired token. It will embody the token title, image, decimals, logos, complete provide, and far more. Right here’s a pattern response:
{
//…
outcome: [
{
address: ‘0xdac17f958d2ee523a2206206994597c13d831ec7’,
address_label: ‘Tether USD (USDT)’,
name: ‘Tether USD’,
symbol: ‘USDT’,
decimals: ‘6’,
logo: ‘https://logo.developers.moralis.com/0x1_0xdac17f958d2ee523a2206206994597c13d831ec7_3282f332c2ac2948929f01fe7d921c51’,
logo_hash: ‘ee7aa2cdf100649a3521a082116258e862e6971261a39b5cd4e4354fcccbc54d’,
thumbnail: ‘https://logo.developers.moralis.com/0x1_0xdac17f958d2ee523a2206206994597c13d831ec7_3282f332c2ac2948929f01fe7d921c51’,
total_supply: ‘51986637760874451’,
total_supply_formatted: ‘51986637760.874451’,
fully_diluted_valuation: ‘51930247101.87’,
block_number: ‘20519335’,
validated: 1,
created_at: ‘2017-11-28T00:41:21.000Z’,
possible_spam: false,
verified_contract: true,
categories: [
‘Asset-backed Tokens’,
‘Exchange-Issued Asset Tokens’,
‘Platform-Based Utility Tokens’,
‘Stablecoins’
],
hyperlinks: {
twitter: ‘https://twitter.com/Tether_to’,
web site: ‘https://tether.to/’,
fb: ‘https://www.fb.com/tether.to’,
reddit: ‘https://www.reddit.com’
}
}
]
}
eth_getNFTBalances
Utilizing eth_geNFTBalances, you may effortlessly retrieve a listing of NFTs owned by a particular pockets deal with.
Right here’s an instance script exhibiting name this endpoint:
import fetch from ‘node-fetch’;
const choices = {
methodology: ‘POST’,
headers: {
settle for: ‘software/json’,
‘content-type’: ‘software/json’
},
physique: JSON.stringify({
“jsonrpc”: “2.0”,
“id”: 1,
“methodology”: “eth_getNFTBalances”,
“params”: [
{
“address”: “0x3F22FC93143790a1bd11C37C65a0a0f7e7875eA2”,
“limit”: 10,
}
]
})
};
fetch(‘YOUR_NODE_URL’, choices)
.then(response => response.json())
.then(response => console.log(response.outcome, null, 2))
.catch(err => console.error(err));
In return, you’ll get a listing of all NFTs owned by the desired deal with. Furthermore, every object is enriched with token addresses, intensive metadata, spam indicators, assortment logos, and extra. Right here’s an instance of what it’d seem like:
{
//…
outcome: [
{
amount: ‘1’,
token_id: ‘8545’,
token_address: ‘0xbd3531da5cf5857e7cfaa92426877b022e612cf8’,
contract_type: ‘ERC721’,
owner_of: ‘0x3f22fc93143790a1bd11c37c65a0a0f7e7875ea2’,
last_metadata_sync: ‘2024-08-14T19:47:37.128Z’,
last_token_uri_sync: ‘2024-08-14T19:47:32.019Z’,
metadata: ‘{“attributes”:[{“trait_type”:”Background”,”value”:”Red”},{“trait_type”:”Skin”,”value”:”Normal”},{“trait_type”:”Body”,”value”:”Shirt Red”},{“trait_type”:”Face”,”value”:”Beard”},{“trait_type”:”Head”,”value”:”Mohawk Green”}],”description”:”A set 8888 Cute Chubby Pudgy Penquins sliding round on the freezing ETH blockchain.”,”picture”:”ipfs://QmNf1UsmdGaMbpatQ6toXSkzDpizaGmC9zfunCyoz1enD5/penguin/8545.png”,”title”:”Pudgy Penguin #8545″}’,
block_number: ‘18777311’,
block_number_minted: null,
title: ‘PudgyPenguins’,
image: ‘PPG’,
token_hash: ‘5e8faae3c07cd3bdb8bfa817e5a14a1b’,
token_uri: ‘https://ipfs.builders.moralis.com:2053/ipfs/bafybeibc5sgo2plmjkq2tzmhrn54bk3crhnc23zd2msg4ea7a4pxrkgfna/8545’,
minter_address: null,
verified_collection: true,
possible_spam: false,
collection_logo: ‘https://i.seadn.io/gae/yNi-XdGxsgQCPpqSio4o31ygAV6wURdIdInWRcFIl46UjUQ1eV7BEndGe8L661OoG-clRi7EgInLX4LPu9Jfw4fq0bnVYHqg7RFi?w=500&auto=format’,
collection_banner_image: ‘https://i.seadn.io/gcs/information/8a26e3de0f309089cbb1e5ab969fc0bc.png?w=500&auto=format’
},
//…
]
}
}
eth_getNFTCollections
Get a listing of all of the NFT collections owned by a particular pockets, together with assortment particulars and metadata.
Right here’s the endpoint in motion:
import fetch from ‘node-fetch’;
const choices = {
methodology: ‘POST’,
headers: {
settle for: ‘software/json’,
‘content-type’: ‘software/json’
},
physique: JSON.stringify({
“jsonrpc”: “2.0”,
“id”: 1,
“methodology”: “eth_getNFTCollections”,
“params”: [
{
“address”: “0x3F22FC93143790a1bd11C37C65a0a0f7e7875eA2”,
“limit”: 10
}
]
})
};
fetch(‘YOUR_NODE_URL’, choices)
.then(response => response.json())
.then(response => console.log(response))
.catch(err => console.error(err));
Calling the endpoint above gives an array of all collections owned by the desired pockets. Every object is enriched with knowledge, together with a reputation, assortment brand, assortment banner, spam indicators, and extra. Right here’s an instance of what it’d seem like:
{
//…
outcome: [
{
token_address: ‘0xbd3531da5cf5857e7cfaa92426877b022e612cf8’,
possible_spam: false,
contract_type: ‘ERC721’,
name: ‘PudgyPenguins’,
symbol: ‘PPG’,
verified_collection: true,
collection_logo: ‘https://i.seadn.io/gae/yNi-XdGxsgQCPpqSio4o31ygAV6wURdIdInWRcFIl46UjUQ1eV7BEndGe8L661OoG-clRi7EgInLX4LPu9Jfw4fq0bnVYHqg7RFi?w=500&auto=format’,
collection_banner_image: ‘https://i.seadn.io/gcs/files/8a26e3de0f309089cbb1e5ab969fc0bc.png?w=500&auto=format’
},
//…
]
}
}
Moralis Overview – Exploring RPC Nodes & Web3 APIs
Moralis stands out because the trade’s #1 crypto knowledge supplier. Our suite of improvement instruments contains top-tier RPC nodes and a number of other use case-specific APIs, such because the Pockets API, Token API, Streams API, and extra. With Moralis, you get all crypto knowledge in a single place.
What makes Moralis distinctive?
One Name – All of the Information: Our APIs and Prolonged RPC Strategies are designed with the end result in thoughts, supplying you with extra knowledge with fewer calls. Fetch ERC-20 token balances, a pockets’s full historical past, token costs, and extra with single requests.
Multi-Chain Assist: Our nodes and Web3 APIs assist all main chains, together with Ethereum, Polygon, BSC, Optimism, Base, and others. Get pleasure from full characteristic parity throughout our supported networks, so that you solely want one knowledge supplier for all chains.
Enterprise-grade Safety: Moralis is SOC 2 Kind 2 licensed, demonstrating our dedication to safety and reliability.
Let’s dive deeper into our merchandise to focus on the advantages of Moralis!
RPC Nodes
Moralis is a number one node supplier, supporting over 30 blockchains, together with Ethereum, Base, and Polygon. With our user-friendly interface, you may effortlessly combine nodes into your tasks on the click on of some buttons.
What units our nodes aside?
Pace: Business-leading response instances as little as 70 ms.
Reliability: 99.9% uptime, making certain fixed knowledge availability.
Safety: SOC 2 Kind 2 licensed for enterprise-grade safety.
Uncover extra on our RPC nodes web page!
Web3 APIs
Moralis’ Web3 API suite consists of a number of distinguished interfaces. Listed below are 5 of them:
Pockets API: A number one device for constructing wallets and integrating pockets performance into dapps. Retrieve any pockets’s historical past, token balances, web value, profitability, and extra with single strains of code.
Token API: Entry ERC-20 knowledge with the Token API. Get balances, costs, metadata, and extra.
NFT API: Superb for constructing NFT marketplaces, Web3 video games, and different NFT-related platforms. Fetch NFT balances, metadata, costs, and extra with minimal code.
Worth API: Get real-time ERC-20 costs, NFT flooring costs, OHLCV costs, and extra. Combine worth knowledge seamlessly into your tasks.
Streams API: Arrange Web3 knowledge pipelines for customized occasions with only a few clicks. Excellent for real-time alerts, populating databases with present occasions, and incorporating dwell insights into your tasks.
To be taught extra about our interfaces, go to our Web3 API web page!
Abstract: How one can Get ERC-20 Token Balances with RPC Nodes
It doesn’t matter for those who’re constructing a Web3 pockets, portfolio tracker, tax device, or different related platforms – likelihood is, you want entry to the ERC-20 token balances of your customers. Nevertheless, querying ERC-20 token balances from RPC nodes has historically been a bothersome and time-consuming endeavor. Doing so requires many requests utilizing strategies like eth_getBalance and necessitates stitching collectively a number of knowledge your self. Fortuitously, there’s now a extra streamlined different: Moralis’ Prolonged RPC Strategies.
Our Prolonged RPC Strategies make it doable to question decoded and enriched knowledge seamlessly utilizing RPC-style requests. With this characteristic, you solely want a single name to get ERC-20 token balances, transaction histories, token costs, and extra utilizing RPC nodes.
To spotlight the accessibility of our Prolonged RPC Strategies, right here’s the eth_getTokenBalances endpoint in motion:
import fetch from ‘node-fetch’;
const choices = {
methodology: ‘POST’,
headers: {
settle for: ‘software/json’,
‘content-type’: ‘software/json’
},
physique: JSON.stringify({
“jsonrpc”: “2.0”,
“id”: 1,
“methodology”: “eth_getTokenBalances”,
“params”: [
{
“address”: “0xcB1C1FdE09f811B294172696404e88E658659905”,
}
]
})
};
fetch(‘YOUR_NODE_URL’, choices)
.then(response => response.json())
.then(response => console.log(response))
.catch(err => console.error(err));
In return for calling the script above, you’ll get the ERC-20 token balances of the desired deal with, enriched with token logos, spam indicators, and far more. Right here’s a pattern response:
{
//…
outcome: [
{
token_address: ‘0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2’,
name: ‘Wrapped Ether’,
symbol: ‘WETH’,
decimals: 18,
logo: ‘https://logo.developers.moralis.com/0x1_0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2_a578c5277503e547a072ae32517254ca’,
thumbnail: ‘https://logo.developers.moralis.com/0x1_0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2_a578c5277503e547a072ae32517254ca’,
balance: ‘10000000000000000’,
possible_spam: false,
verified_contract: true,
total_supply: ‘2746607222348759943423350’,
total_supply_formatted: ‘2746607.22234875994342335’,
percentage_relative_to_total_supply: 3.64085549569e-7
},
//…
]
}
That’s it! Fetching ERC-20 token balances with RPC nodes doesn’t should be more difficult than this when utilizing Moralis.
In case you appreciated this tutorial on get ERC-20 token balances with RPC nodes, think about trying out extra Moralis content material. For example, discover ways to get DeFi protocol knowledge or dive into our Alchemy Customized Webhooks information.
Lastly, if you wish to get ERC-20 token balances with RPC nodes your self, don’t overlook to enroll with Moralis. You possibly can create an account freed from cost and get fast entry to all our premier improvement instruments!
