If you wish to construct a block explorer – or implement related performance into your decentralized purposes (dapps) – you’ll possible need to leverage a complete block explorer API. And, if so for you, you’ve come to the suitable place!
In at present’s article, we’ll introduce you to Moralis’ industry-leading Web3 API suite – the final word device for constructing block explorers. With our premier interfaces, you’ll be able to effortlessly get block information, token costs, pockets balances, and way more. When you’re desperate to get going, listed here are three outstanding Moralis API endpoints that may come in useful when constructing a block explorer:
getBlock() – Question the contents of a block by its block quantity or hash:const response = await Moralis.EvmApi.block.getBlock({
“chain”: “0x1”,
“blockNumberOrHash”: “18541416”
}); getWalletTransactions() – Fetch all transactions of any tackle:const response = await Moralis.EvmApi.transaction.getWalletTransactions({
“chain”: “0x1”,
“tackle”: “0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326”
}); getWalletTokenBalances() – Get the token balances of any pockets: const response = await Moralis.EvmApi.token.getWalletTokenBalances({
“chain”: “0x1”,
“tackle”: “0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326”
});
For a extra detailed breakdown of the endpoints above and a tutorial on name them, be a part of us on this article as we discover the intricacies of Moralis’ Web3 APIs. Moreover, when you want watching movies to be taught, try the clip beneath, the place we cowl some outstanding endpoints wanted to construct your personal block explorer:
Additionally, if you wish to use our instruments and APIs to avoid wasting beneficial improvement time and assets, don’t neglect to enroll with Moralis. You possibly can create your account freed from cost, and also you’ll have the ability to leverage blockchain know-how’s full energy instantly!
Overview
We’ll kickstart at present’s article by diving into the ins and outs of block explorers. From there, we’ll cowl the intricacies of block explorer APIs and clarify why you would possibly want one when constructing dapps. Subsequent, we’ll introduce you to the {industry}’s premier API supplier: Moralis. Moreover, we’ll cowl some outstanding endpoints that you just’ll want when constructing block explorers or implementing related performance into your tasks. Lastly, to high issues off, we’re going to offer you a block explorer API tutorial the place we present you get the token balances of any pockets in three steps:
Arrange MoralisWrite a Script Calling the getWalletTokenBalances() EndpointRun the Code
If this sounds intriguing, be a part of us beneath as we kick issues off by what a block explorer is!
What’s a Block Explorer?
Block explorers – additionally generally known as blockchain explorers – are software program purposes that mean you can extract, visualize, and overview blockchain information. This consists of important details about blocks, good contracts, occasions, transactions, pockets balances, and way more!
Most blockchain networks have their very own distinct block explorers. For instance, some outstanding examples embody Ethereum’s Etherscan, Polygon’s PolygonScan, and BNB Good Chain’s (BSC) BscScan.
So, what precisely does a block explorer do? To reply this query, let’s take a look at some key options of block explorers. And let’s use Etherscan for instance:
View Block Knowledge: With Etherscan, you’ll be able to seamlessly verify the contents of any block on Ethereum. This consists of data akin to timestamps, transactions, gasoline used, gasoline restrict, and way more:
Discover Token Knowledge: Discover any token tackle to get information akin to the full provide, variety of holders, transfers, costs, market caps, and details about underlying good contracts:
Test Pockets Addresses: Test any pockets tackle and get data like native balances, token balances, transactions, inner transactions, switch histories, NFT transfers, and way more:
To have the ability to effortlessly fetch and show the knowledge above, together with block information, token costs, pockets transfers, and so on., immediately from the blockchain, software program purposes like Etherscan leverage block explorer APIs!
However what’s a block explorer API? Additionally, why must you use one?
What’s a Block Explorer API?
A block explorer API (software programming interface) is a algorithm, protocols, and strategies that mean you can seamlessly work together with a blockchain to combine block explorer performance and information into your tasks. Consequently, a block explorer API basically gives a structured approach to entry information about blocks, transactions, wallets, crypto addresses, and way more!
However why do you want a block explorer API?
Querying information immediately from a blockchain community is a tedious and time-consuming process. And from a traditional perspective, it required builders to, for example, run a full node themselves and construct their very own infrastructure for information retrieval.
Fortuitously, that is not the case with refined instruments like block explorer APIs, as they summary away plenty of complexity related to blockchain know-how, supplying you with a standardized approach to talk with the assorted networks.
All in all, a block explorer API makes the method of querying information from a blockchain a lot simpler. And with interfaces like these, you’ll be able to leverage premade strategies and protocols, that means you don’t need to reinvent the wheel. Consequently, block explorer APIs mean you can save each plenty of improvement time and assets, underscoring the essential position these interfaces have inside the blockchain house!
So, which is the perfect block explorer API supplier?
Introducing Moralis: The Final Block Explorer API Supplier
Moralis is an industry-leading API supplier, and our suite of premier interfaces makes Web3 improvement as seamless as Web2. Consequently, when working with Moralis, it has by no means been simpler to construct every little thing from NFT marketplaces to your personal block explorer!
Moreover, in our suite of Web3 APIs, you’ll discover every little thing {that a} block explorer API has to supply and extra. As such, when working with Moralis, you’ll be able to effortlessly fetch block information, transactions, balances, token costs, NFTs, and so on., with solely single strains of code.
However why must you be utilizing our Web3 APIs?
To reply the query above, let’s take a look at three outstanding advantages of Moralis:
Scalability: Our Web3 APIs are constructed to scale. Consequently, you don’t have to fret when your tasks develop and see elevated adoption, as Moralis may have no hassle dealing with the visitors.Excessive Efficiency: Our APIs are the {industry}’s premier interfaces. Select any metric – whether or not you need to measure by reliability, information protection, pace, or the rest – our Web3 APIs outperform the competitors each day of the week.
Cross-Chain Compatability: With our Web3 APIs, you’ll be able to seamlessly construct throughout the preferred blockchain networks, together with Ethereum, BNB Good Chain, Polygon, Avalanche, Gnosis, Chiliz, and plenty of others. As such, it has by no means been simpler to construct cross-chain suitable dapps!
So, what instruments can you discover in Moralis’ Web3 API suite?
Effectively, right here’s a listing of a few of our most outstanding interfaces:
If you wish to discover all of them, try our Web3 API web page!
Learn how to Construct a Block Explorer with Moralis’ API Suite
Now, with an summary of Moralis’ Web3 API suite, you is perhaps questioning how one can leverage our instruments to construct a block explorer your self. Nevertheless, since block explorers are fairly in depth items of software program, we gained’t have the ability to cowl all performance on this tutorial. As a substitute, we’ll concentrate on just a few examples and dive into the important endpoints wanted to:
Get Block Knowledge with the Blockchain APIFetch Token Costs with the Token API Question Token Balances with the Pockets API
So, with out additional ado, let’s kick issues off by exhibiting you get block information utilizing Moralis’ Blockchain API!
Get Block Knowledge with the Blockchain API
The primary central characteristic of any block explorer that we coated within the ”What’s a Block Explorer?” part was the flexibility to view block information, together with timestamps, transactions, gasoline limits, and so on:
The simplest approach to get this data is to leverage Moralis’ Blockchain API and the getBlock() endpoint. All it’s important to do is name this endpoint with two parameters: chain and blockNumberOrHash:
const response = await Moralis.EvmApi.block.getBlock({
“chain”: “0x1”,
“blockNumberOrHash”: “18541416”
});
Calling the endpoint above returns the contents of the block in query, together with a timestamp, hash, transactions, gasoline used, gasoline restrict, and way more. That is what it’d appear like:
{
“timestamp”: “2023-11-10T12:02:11.000Z”,
“quantity”: “18541416”,
“hash”: “0xe9de65582d5a210f3f5703e0d7dc1daf9fbb5a0670937f5d92283a41ea1bcb2b”,
“parent_hash”: “0xb63af7df0e2639cc25c323f22359b784408a117b534dea09cfec14263ea8d4fb”,
“nonce”: “0x0000000000000000”,
“sha3_uncles”: “0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347”,
“logs_bloom”: “0x00200//…”,
“transactions_root”: “0x0b6895fbd7fdf9b8e0239e5be21a195c89ffae093c1c2bcdea9ad498d720003b”,
“state_root”: “0x787cc0fff225d2b6d8acef1cea33522293d134297c1f4b22819a90f157db183d”,
“receipts_root”: “0x6d7caa30f12937a232dcedda5f8bc2c973ba917a67062cedeb4ccb52c729058c”,
“miner”: “0x95222290DD7278Aa3Ddd389Cc1E1d165CC4BAfe5”,
“problem”: “0”,
“total_difficulty”: “58750003716598352816469”,
“measurement”: “7792”,
“extra_data”: “0x6265617665726275696c642e6f7267”,
“gas_limit”: “30000000”,
“gas_used”: “1372772”,
//…
}
If you wish to know extra about how this works, try our Blockchain API tutorial!
Fetch Token Costs with the Token API
One other vital characteristic of most block explorers is the flexibility to discover token information, together with transfers, holders, and so on. And on this part, we’ll present you get the value of any token:
Essentially the most easy approach to get this information is to leverage Moralis’ Token API. With solely a single name to the getTokenPrice() endpoint, you’ll be able to seamlessly get the value of any token, and all it’s important to do is specify two parameters: chain and tackle:
const response = await Moralis.EvmApi.token.getTokenPrice({
“chain”: “0x1”,
“tackle”: “0x7d1afa7b718fb893db30a3abc0cfc608aacfebb0”
});
In return for calling the getTokenPrice() endpoint, you get the token’s value denominated within the chain’s native foreign money and USD. Right here’s an instance of what it’d appear like:
{
“tokenName”: “Matic Token”,
“tokenSymbol”: “MATIC”,
“tokenLogo”: “https://cdn.moralis.io/eth/0x7d1afa7b718fb893db30a3abc0cfc608aacfebb0.png”,
“tokenDecimals”: “18”,
“nativePrice”: {
“worth”: “423085770833740”,
“decimals”: 18,
“title”: “Ether”,
“image”: “ETH”,
“tackle”: “0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2”
},
“usdPrice”: 0.8771902804648514,
“usdPriceFormatted”: “0.877190280464851369”,
“exchangeName”: “Uniswap v3”,
“exchangeAddress”: “0x1F98431c8aD98523631AE4a59f267346ea31F984”,
“tokenAddress”: “0x7d1afa7b718fb893db30a3abc0cfc608aacfebb0”
}
Question Token Balances with the Pockets API
Lastly, a remaining core characteristic of most block explorers is the performance to verify information related to a pockets tackle, together with transfers, balances, and so on. And on this part, we’ll present you fetch all token holdings of a pockets:
The simplest approach to get this data is to leverage Moralis’ Pockets API. All you want is a single name to the getWalletTokenBalances() endpoint whereas passing alongside two parameters: chain and tackle:
const response = await Moralis.EvmApi.token.getWalletTokenBalances({
“chain”: “0x1”,
“tackle”: “0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326”
});
In return for calling the endpoint above, you get a listing of all tokens held by the pockets in query. It is going to look one thing like this:
[
{
“token_address”: “0x3c978fc9a42c80a127863d786d8883614b01b3cd”,
“symbol”: “USDT”,
“name”: “USDTOKEN”,
“logo”: null,
“thumbnail”: null,
“decimals”: 18,
“balance”: “10000000000000000000000”,
“possible_spam”: true
},
{
“token_address”: “0xdac17f958d2ee523a2206206994597c13d831ec7”,
“symbol”: “USDT”,
“name”: “Tether USD”,
“logo”: “https://cdn.moralis.io/eth/0xdac17f958d2ee523a2206206994597c13d831ec7.png”,
“thumbnail”: “https://cdn.moralis.io/eth/0xdac17f958d2ee523a2206206994597c13d831ec7_thumb.png”,
“decimals”: 6,
“balance”: “209355461”,
“possible_spam”: false
},
//…
]
If you wish to discover all different endpoints, try our official Web3 API documentation web page!
What’s extra, when you’re searching for a tutorial on how one can combine this information into your dapps, try the Moralis YouTube video beneath. This clip gives a complete breakdown of how one can construct an Etherscan clone in lower than twelve minutes:
Block Explorer API Tutorial: Learn how to Get the Token Balances of a Pockets in 3 Steps
On this a part of the article, we’ll current a whole tutorial on how one can name the assorted endpoints of Moralis. To spotlight the accessibility of our premier interfaces, we’ll use the getWalletTokenBalances() endpoint for instance and present you get the token balances of a pockets in three steps:
Arrange MoralisWrite a Script Calling the getWalletTokenBalances() EndpointRun the Code
Nevertheless, you have to take care of just a few stipulations earlier than we will proceed!
Conditions
This might be a JavaScript tutorial. As such, that you must have the next prepared:
Step 1: Set Up Moralis
For step one, that you must be a part of Moralis to get your API key. As such, when you don’t have already got an account, click on on the ”Begin for Free” button on the high proper to enroll:
From there, go to the ”Settings” tab, scroll down, and replica your API key:
Maintain it for now, as you’ll want it within the subsequent part!
Step 2: Write a Script Calling the getWalletTokenBalances() Endpoint
For the second step, arrange a brand new undertaking in your IDE, open a brand new terminal, and run the next command within the root folder to put in the Moralis SDK:
npm set up moralis @moralisweb3/common-evm-utils
Subsequent, create an ”index.js” file and add the next code:
const Moralis = require(“moralis”).default;
const { EvmChain } = require(“@moralisweb3/common-evm-utils”);
const runApp = async () => {
await Moralis.begin({
apiKey: “YOUR_API_KEY”,
// …and every other configuration
});
const tackle = “0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d”;
const chain = EvmChain.ETHEREUM;
const response = await Moralis.EvmApi.token.getWalletTokenBalances({
tackle,
chain,
});
console.log(response.toJSON());
};
runApp();
From there, add your Moralis API key by changing YOUR_API_KEY:
Subsequent, configure chain and tackle to suit your question:
From right here, we then move alongside chain and tackle as parameters when calling the endpoint:
And that’s it for the script!
Step 3: Run the Code
For the ultimate step, open a brand new terminal and run the command beneath within the undertaking’s root folder:
node index.js
In return, you’ll get an array of all tokens held by the pockets in query. And it’ll look one thing like this:
[
{
“token_address”: “0xefd6c64533602ac55ab64442307f6fe2c9307305”,
“name”: “APE”,
“symbol”: “APE”,
“logo”: null,
“thumbnail”: null,
“decimals”: 18,
“balance”: “101715701444169451516503179”
},
{
“token_address”: “0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2”,
“name”: “Wrapped Ether”,
“symbol”: “WETH”,
“logo”: “https://cdn.moralis.io/eth/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2.webp”,
“thumbnail”: “https://cdn.moralis.io/eth/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2_thumb.webp”,
“decimals”: 18,
“balance”: “85000000000000000”
}
]
Congratulations! You now know get the token balances of a pockets with Moralis!
If questions stay, try the official documentation web page demonstrating get all ERC-20 tokens owned by an tackle. Additionally, you’ll be able to observe the steps above to name every other Moralis endpoint. All it’s important to do is substitute the endpoint and configure the parameters through the second step!
Abstract: Exploring the Trade’s Premier Block Explorer API
In at present’s article, we launched you to Moralis’ industry-leading suite of Web3 APIs. With our premier interfaces, you get every little thing that you must construct a block explorer or combine related performance into your tasks, making it the final word Etherescan API different. And because of the accessibility of our APIs, you will get the information you want with single strains of code!
Along with introducing you to Moralis, we additionally confirmed you get the token balances of a pockets in three steps:
Arrange MoralisWrite a Script Calling the getWalletTokenBalances() EndpointRun the Code
Consequently, when you have adopted alongside this far, you now know get blockchain information utilizing Moralis!
When you appreciated this block explorer API tutorial, think about testing extra content material on the Web3 weblog. As an example, try our Ropsten faucet information or find out about the perfect blockchain API suppliers!
Additionally, if you wish to leverage our industry-leading Web3 APIs, don’t neglect to enroll with Moralis at present!
