Uncover the simplest method to get ERC-20 token balances utilizing RPC nodes. Moralis’ Prolonged RPC Strategies let you seamlessly fetch any pockets’s token balances with a single RPC-style request. Curious to see the way it works? Take a look at the eth_getTokenBalances endpoint in motion:
import fetch from ‘node-fetch’;
const choices = {
technique: ‘POST’,
headers: {
settle for: ‘utility/json’,
‘content-type’: ‘utility/json’
},
physique: JSON.stringify({
“jsonrpc”: “2.0”,
“id”: 1,
“technique”: “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 steadiness of the required pockets. Right here’s a pattern response:
{
//…
end result: [
{
token_address: ‘0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2’,
name: ‘Wrapped Ether’,
symbol: ‘WETH’,
decimals: 18,
logo: ‘https://logo.moralis.io/0x1_0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2_a578c5277503e547a072ae32517254ca’,
thumbnail: ‘https://logo.moralis.io/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 a part of us on this detailed tutorial or take a look at our official Prolonged RPC Strategies documentation.
Able to get began? Join with Moralis, and also you’ll be capable to 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 initiatives, you’ll seemingly 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 information. However there’s a greater means: Moralis’ Prolonged RPC Strategies.
With our Prolonged RPC Strategies, you’ll be able to simply question decoded, human-readable information by way 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 learn how to 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 confer with the variety of tokens held by a particular pockets or handle. Since numerous kinds of ERC-20 tokens exist, a pockets can maintain a number of token balances concurrently. For instance, a person 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, observe worth modifications, and replace customers on their general portfolio efficiency.
Tax Platforms: To generate exact tax studies, tax platforms should entry the ERC-20 token balances of their customers.
These are only a few examples; ERC-20 token balances are crucial for many Web3 dapps!
Introducing Prolonged RPC Strategies – The Best Method to Get ERC-20 Token Balances with RPC Nodes
Moralis’ Prolonged RPC Strategies streamline the method of querying decoded, human-readable information utilizing RPC nodes, making dapp growth extra accessible.
Key information you’ll be able to entry:
eth_getTokenBalances: Retrieve ERC-20 token balances by pockets.
eth_getTransactions: Fetch native transactions by pockets handle.
eth_getDecodedTransactions: Entry detailed pockets transaction historical past by handle.
eth_getTokenPrice: Get costs by token addresses.
eth_getTokenMetadata: Acquire ERC-20 metadata by token handle.
eth_getNFTBalances: Retrieve NFTs by pockets handle.
eth_getNFTCollections: Entry NFT collections by pockets.
In essence, our Prolonged RPC Strategies make it straightforward so that you can question and combine decoded, human-readable crypto information into your dapps!
Why Do You Want Prolonged RPC Strategies?
Querying on-chain information utilizing typical RPC strategies might be cumbersome. These strategies aren’t optimized for widespread queries like, “What ERC-20 tokens does pockets X maintain?” To get this data, you usually must make a number of requests and manually compile the information, which is time-consuming and resource-intensive. Happily, that’s the place Moralis’ Prolonged RPC Strategies are available in.
Our Prolonged RPC Strategies allow you to simply get ERC-20 token balances, pockets historical past, NFT balances, and extra by way of easy RPC-style requests, making fetching crypto information by way of nodes extra environment friendly than ever.
Wish to see the way it works? Take a look at the tutorial under to learn to use our Prolonged RPC Strategies to get ERC-20 token balances!
3-Step Tutorial: The way to Get ERC-20 Token Balances with RPC Nodes
We’ll now present you learn how to seamlessly get ERC-20 token balances utilizing RPC nodes. Due to the accessibility of our Prolonged RPC Strategies, you’ll be able to get hold of this information in three easy steps:
Join with Moralis & create a node.
Write a script calling the eth_getTokenBalances endpoint.
Run the code.
Nevertheless, earlier than you’ll be able to start, it’s good to handle a couple of stipulations.
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:
This may 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 popular IDE, then arrange a brand new folder and initialize a mission utilizing the terminal command offered:
npm init
After that, set up the mandatory dependencies utilizing the given command:
npm set up node-fetch –save
npm set up moralis @moralisweb3/common-evm-utils
In your “bundle.json” file, make sure you add “sort”: ”module”:
Subsequent, create a brand new “index.js” file and insert the offered code:
import fetch from ‘node-fetch’;
const choices = {
technique: ‘POST’,
headers: {
settle for: ‘utility/json’,
‘content-type’: ‘utility/json’
},
physique: JSON.stringify({
“jsonrpc”: “2.0”,
“id”: 1,
“technique”: “eth_getTokenBalances”,
“params”: [
{
“address”: “0xcB1C1FdE09f811B294172696404e88E658659905”,
}
]
})
};
fetch(‘YOUR_NODE_URL’, choices)
.then(response => response.json())
.then(response => console.log(response))
.catch(err => console.error(err));
Change YOUR_NODE_URL with the node URL you copied earlier, and regulate the handle 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 mission’s root folder:
node index.js
In return, you’ll get the ERC-20 token balances of the required pockets utilizing your RPC node. Right here’s an instance of what it’d appear to be:
{
//…
end result: [
{
token_address: ‘0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2’,
name: ‘Wrapped Ether’,
symbol: ‘WETH’,
decimals: 18,
logo: ‘https://logo.moralis.io/0x1_0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2_a578c5277503e547a072ae32517254ca’,
thumbnail: ‘https://logo.moralis.io/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 straightforward to get ERC-20 token balances from RPC nodes utilizing Moralis!
To be taught extra about how this works, please take a look at the eth_getTokenBalances documentation web page.
Additionally, wish to see how you should utilize this information in apply? Take a look at the Moralis YouTube video under, the place one in all our builders exhibits you learn how to construct a portfolio app utilizing simply the eth_getTokenBalances endpoint:
Past The way to Get ERC-20 Token Balances with RPC Nodes – Exploring Different Prolonged RPC Strategies
Fetching ERC-20 token balances with nodes is only one side 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 better take a look at eth_getDecodedTransactions!
eth_getDecodedTransactions
With eth_getDecodedTransactions, you’ll be able to seamlessly fetch the transaction historical past of a particular pockets handle, enriched with decoded information. Furthermore, this technique encompasses native transfers, ERC-20 transactions, NFT transfers, and extra.
Right here’s an instance of learn how to name this premier technique:
import fetch from ‘node-fetch’;
const choices = {
technique: ‘POST’,
headers: {
settle for: ‘utility/json’,
‘content-type’: ‘utility/json’
},
physique: JSON.stringify({
“jsonrpc”: “2.0”,
“id”: 1,
“technique”: “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 complete 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 appear to be:
{
//…
“end result”: [
{
“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.moralis.io/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 may retrieve costs for stablecoins like USDT, meme cash like Shiba Inu, and all the things in between.
Right here’s an instance of what it appears like when calling the endpoint:
import fetch from ‘node-fetch’;
const choices = {
technique: ‘POST’,
headers: {
settle for: ‘utility/json’,
‘content-type’: ‘utility/json’
},
physique: JSON.stringify({
“jsonrpc”: “2.0”,
“id”: 1,
“technique”: “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 required 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 appears like:
{
//…
end result: {
tokenName: ‘Tether USD’,
tokenSymbol: ‘USDT’,
tokenLogo: ‘https://brand.moralis.io/0x1_0xdac17f958d2ee523a2206206994597c13d831ec7_3282f332c2ac2948929f01fe7d921c51’,
tokenDecimals: ‘6’,
nativePrice: {
worth: ‘375760131462618’,
decimals: 18,
title: ‘Ether’,
image: ‘ETH’,
handle: ‘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’ll be able to seamlessly fetch the metadata of an ERC-20 token. Furthermore, this endpoint covers all the things 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 = {
technique: ‘POST’,
headers: {
settle for: ‘utility/json’,
‘content-type’: ‘utility/json’
},
physique: JSON.stringify({
“jsonrpc”: “2.0”,
“id”: 1,
“technique”: “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 required token. This may embody the token title, image, decimals, logos, complete provide, and rather more. Right here’s a pattern response:
{
//…
end result: [
{
address: ‘0xdac17f958d2ee523a2206206994597c13d831ec7’,
address_label: ‘Tether USD (USDT)’,
name: ‘Tether USD’,
symbol: ‘USDT’,
decimals: ‘6’,
logo: ‘https://logo.moralis.io/0x1_0xdac17f958d2ee523a2206206994597c13d831ec7_3282f332c2ac2948929f01fe7d921c51’,
logo_hash: ‘ee7aa2cdf100649a3521a082116258e862e6971261a39b5cd4e4354fcccbc54d’,
thumbnail: ‘https://logo.moralis.io/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’ll be able to effortlessly retrieve an inventory of NFTs owned by a particular pockets handle.
Right here’s an instance script displaying learn how to name this endpoint:
import fetch from ‘node-fetch’;
const choices = {
technique: ‘POST’,
headers: {
settle for: ‘utility/json’,
‘content-type’: ‘utility/json’
},
physique: JSON.stringify({
“jsonrpc”: “2.0”,
“id”: 1,
“technique”: “eth_getNFTBalances”,
“params”: [
{
“address”: “0x3F22FC93143790a1bd11C37C65a0a0f7e7875eA2”,
“limit”: 10,
}
]
})
};
fetch(‘YOUR_NODE_URL’, choices)
.then(response => response.json())
.then(response => console.log(response.end result, null, 2))
.catch(err => console.error(err));
In return, you’ll get an inventory of all NFTs owned by the required handle. 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 appear to be:
{
//…
end result: [
{
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 group 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.moralis.io: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 an inventory 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 = {
technique: ‘POST’,
headers: {
settle for: ‘utility/json’,
‘content-type’: ‘utility/json’
},
physique: JSON.stringify({
“jsonrpc”: “2.0”,
“id”: 1,
“technique”: “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 required pockets. Every object is enriched with information, together with a reputation, assortment brand, assortment banner, spam indicators, and extra. Right here’s an instance of what it’d appear to be:
{
//…
end result: [
{
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 business’s #1 crypto information supplier. Our suite of growth instruments contains top-tier RPC nodes and several other use case-specific APIs, such because the Pockets API, Token API, Streams API, and extra. With Moralis, you get all crypto information in a single place.
What makes Moralis distinctive?
One Name – All of the Knowledge: Our APIs and Prolonged RPC Strategies are designed with the result in thoughts, supplying you with extra information with fewer calls. Fetch ERC-20 token balances, a pockets’s full historical past, token costs, and extra with single requests.
Multi-Chain Help: Our nodes and Web3 APIs help all main chains, together with Ethereum, Polygon, BSC, Optimism, Base, and others. Take pleasure in full characteristic parity throughout our supported networks, so that you solely want one information 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 spotlight 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’ll be able to effortlessly combine nodes into your initiatives on the click on of some buttons.
What units our nodes aside?
Pace: Trade-leading response instances as little as 70 ms.
Reliability: 99.9% uptime, guaranteeing fixed information 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 outstanding interfaces. Listed below are 5 of them:
Pockets API: A number one software for constructing wallets and integrating pockets performance into dapps. Retrieve any pockets’s historical past, token balances, web price, profitability, and extra with single traces of code.
Token API: Entry ERC-20 information 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 information seamlessly into your initiatives.
Streams API: Arrange Web3 information pipelines for customized occasions with only a few clicks. Excellent for real-time alerts, populating databases with present occasions, and incorporating stay insights into your initiatives.
To be taught extra about our interfaces, go to our Web3 API web page!
Abstract: The way to Get ERC-20 Token Balances with RPC Nodes
It doesn’t matter should you’re constructing a Web3 pockets, portfolio tracker, tax software, or different comparable platforms – chances are high, 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 and necessitates stitching collectively numerous information your self. Happily, there’s now a extra streamlined various: Moralis’ Prolonged RPC Strategies.
Our Prolonged RPC Strategies make it doable to question decoded and enriched information 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 = {
technique: ‘POST’,
headers: {
settle for: ‘utility/json’,
‘content-type’: ‘utility/json’
},
physique: JSON.stringify({
“jsonrpc”: “2.0”,
“id”: 1,
“technique”: “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 required handle, enriched with token logos, spam indicators, and rather more. Right here’s a pattern response:
{
//…
end result: [
{
token_address: ‘0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2’,
name: ‘Wrapped Ether’,
symbol: ‘WETH’,
decimals: 18,
logo: ‘https://logo.moralis.io/0x1_0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2_a578c5277503e547a072ae32517254ca’,
thumbnail: ‘https://logo.moralis.io/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 the event you preferred this tutorial on learn how to get ERC-20 token balances with RPC nodes, take into account trying out extra Moralis content material. For example, learn to get DeFi protocol information 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 may create an account freed from cost and get rapid entry to all our premier growth instruments!
