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At this time’s blockchain API tutorial will spotlight quite a few API examples and display easy methods to fetch important blockchain information. As we transfer ahead, we’ll dive into Moralis’ industry-leading Blockchain API – the last word instrument for blockchain information. It options quite a few endpoints, permitting you to effortlessly get blocks, transactions, logs, occasions, and way more. To offer you a bit of sneak peek, right here’s a blockchain API instance of how one can get the contents of a block with a single name to Moralis’ Blockchain API:
const response = await Moralis.EvmApi.block.getBlock({
“chain”: “0x1”,
“blockNumberOrHash”: “15863321”
});
All you need to do is configure the chain and blockNumberOrHash parameters to suit your question earlier than calling the endpoint within the instance above. In return, you’ll get a response containing the block’s timestamp, quantity, hash, log bloom, miner, and way more. That is what it could possibly appear to be:
{
“timestamp”: “2021-05-07T11:08:35.000Z”,
“quantity”: 12386788,
“hash”: “0x9b559aef7ea858608c2e554246fe4a24287e7aeeb976848df2b9a2531f4b9171”,
“parent_hash”: “0x011d1fc45839de975cc55d758943f9f1d204f80a90eb631f3bf064b80d53e045”,
“nonce”: “0xedeb2d8fd2b2bdec”,
“sha3_uncles”: “0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347”,
“logs_bloom”: “0xdde5fc46c5d8bcbd58207//…”,
“transactions_root”: “0xe4c7bf3aff7ad07f9e80d57f7189f0252592fee6321c2a9bd9b09b6ce0690d27”,
“state_root”: “0x49e3bfe7b618e27fde8fa08884803a8458b502c6534af69873a3cc926a7c724b”,
“receipts_root”: “0x7cf43d7e837284f036cf92c56973f5e27bdd253ca46168fa195a6b07fa719f23”,
“miner”: “0xea674fdde714fd979de3edf0f56aa9716b898ec8”,
“issue”: “7253857437305950”,
“total_difficulty”: “24325637817906576196890”,
“dimension”: “61271”,
“extra_data”: “0x65746865726d696e652d6575726f70652d7765737433”,
“gas_limit”: “14977947”,
“gas_used”: “14964688”,
“transaction_count”: “252”,
“transactions”: {
//…
}
}
And that’s it; when working with Moralis, getting blockchain information doesn’t need to be harder. Nonetheless, in order for you a extra detailed tutorial and discover some extra endpoints, learn on! Additionally, if you wish to comply with alongside and make related calls your self, don’t overlook to enroll with Moralis. You may create an account totally free and instantly unlock the ability of blockchain information!
Overview
In right this moment’s tutorial, we’ll kickstart issues by diving straight into the Moralis Blockchain API. In doing so, we’ll briefly discover what this instrument does and canopy a few of its key advantages. From there, we’ll discover some distinguished use instances and offer you a sensible instance of how one can leverage the Blockchain API in every case. Lastly, to high issues off, we’ll bounce into an in-depth tutorial displaying you easy methods to get the contents of a block by its quantity in three simple steps:
Get a Moralis API KeyWrite a Script Calling the getBlock() EndpointExecute the Code
Additionally, for those who’re critical about constructing blockchain initiatives, take into account trying out some extra Web3 information instruments Moralis affords. As an example, discover the Worth API to learn to seamlessly get costs of crypto and combine this information into your initiatives!
Nonetheless, with out additional ado, let’s discover Moralis’ industry-leading Blockchain API!
What’s the Moralis Blockchain API?
The Moralis Blockchain API is an industry-leading interface that permits you to seamlessly unlock the ability of uncooked blockchain information with velocity and precision. With solely single strains of code, you possibly can effortlessly get blocks, transactions, logs, occasions, and way more with the Blockchain API. As such, when working with the Moralis, it has by no means been simpler to construct Web3 initiatives!
So, what are the options of the Blockchain API?
Get Block Information: Get information on explicit blocks – together with timestamps, fuel used, miners, transactions, and so forth. – throughout a number of blockchain networks. Fetch Transactions and Inside Transactions: Seamlessly entry all historic and real-time transactions of an tackle. Question Logs and Occasions: Use the Blockchain API to question logs and occasions of any good contract throughout all main EVM chains. Uncooked and Decoded Information: Get each uncooked and decoded information primarily based on contract ABIs.Labels: Efforlessly interpret transactions with enriched information labeling, together with receiver and sender tackle labels. And extra!
Moreover, the Blockchain API is cross-chain suitable. This implies you possibly can question blockchain information throughout all main networks, together with Ethereum, Polygon, BNB Sensible Chain, Arbitrum, and plenty of others!
Advantages of the Moralis Blockchain API
Together with many highly effective options, the Blockchain API additionally offers many advantages. Listed here are 4 distinguished examples:
Scalable: Our Blockchain API is constructed for progress. Consequently, as your initiatives see elevated adoption, the interface may have no hassle delivering at the same time as your person base grows.Actual-Time: The Blockchain API is quick, indexes real-time information, and ensures instant entry to the newest blockchain information. Exact: Information accuracy is crucial when constructing Web3 initiatives, which is why the Blockchain API all the time affords exact and dependable information. Organized: Blockchain information could be messy, and we consider in digestible and detailed data. As such, our Blockchain API organizes blocks into transfers, transactions, and logs, supplying you with a structured strategy to navigate the crypto panorama.
Now, with an outline of our industry-leading Blockchain API, let’s discover a few of its use instances!
Blockchain API Examples and Use Instances
The Moralis Blockchain API has many distinguished use instances, and on this part, we’ll take a look at three examples:
Block Explorers: Block explorers are on-line instruments enabling you to seek for real-time and historic information a few blockchain. This normally contains block information, addresses, transactions, and way more. Some distinguished examples of already current block explorers are Etherscan, PolygonScan, and BscScan.
Since explorers help you seek for details about a blockchain, you want seamless entry to this information (e.g., transactions, blocks, logs, and so forth.) when constructing one. And the best strategy to question this information is to make use of the Moralis Blockchain API.
Web3 Wallets: Web3 wallets are software program permitting you to retailer and handle digital belongings, together with fungible and non-fungible tokens. Some examples of distinguished pockets suppliers embrace MetaMask and Rainbow.
A typical function of most Web3 wallets is to show every person’s pockets exercise. This provides customers an outline of all their trades, which could be helpful in lots of instances. To show this data, you want entry to transaction information and occasions, which is the place our Blockchain API enters the equation.
Decentralized Utility (Dapp) Alerts: When constructing dapps, it may be extremely helpful to arrange alert programs to inform customers of essential occasions. This could, as an example, be alerts for when crypto whales promote a big portion of their holdings.
To arrange alert programs like this, you want entry to good contract occasions and logs, which you’ll effortlessly get with solely single strains of code when working with our Blockchain API.
Nonetheless, that covers three distinguished use instances. Within the following sections, we’ll increase on this additional by offering examples of easy methods to use the Blockchain API to get the information you want with a number of programming languages!
Block Explorers: JavaScript Blockchain API Instance
As talked about above, you want entry to quite a lot of information when constructing a block explorer. With the Moralis Blockchain API, you will get the information you want in a heartbeat!
All you need to do is name the getBlock() endpoint whereas passing alongside two parameters: chain and blockNumberOrHash. Right here’s an instance of what it would appear to be:
const response = await Moralis.EvmApi.block.getBlock({
“chain”: “0x1”,
“blockNumberOrHash”: “15863321”
});
In return for calling the endpoint above, you’ll get a complete response wanting one thing like this:
{
“timestamp”: “2021-05-07T11:08:35.000Z”,
“quantity”: 12386788,
“hash”: “0x9b559aef7ea858608c2e554246fe4a24287e7aeeb976848df2b9a2531f4b9171”,
“parent_hash”: “0x011d1fc45839de975cc55d758943f9f1d204f80a90eb631f3bf064b80d53e045”,
“nonce”: “0xedeb2d8fd2b2bdec”,
“sha3_uncles”: “0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347”,
“logs_bloom”: “0xdde5fc46c5d8bcbd58207//…”,
“transactions_root”: “0xe4c7bf3aff7ad07f9e80d57f7189f0252592fee6321c2a9bd9b09b6ce0690d27”,
“state_root”: “0x49e3bfe7b618e27fde8fa08884803a8458b502c6534af69873a3cc926a7c724b”,
“receipts_root”: “0x7cf43d7e837284f036cf92c56973f5e27bdd253ca46168fa195a6b07fa719f23”,
“miner”: “0xea674fdde714fd979de3edf0f56aa9716b898ec8”,
“issue”: “7253857437305950”,
“total_difficulty”: “24325637817906576196890”,
“dimension”: “61271”,
“extra_data”: “0x65746865726d696e652d6575726f70652d7765737433”,
“gas_limit”: “14977947”,
“gas_used”: “14964688”,
“transaction_count”: “252”,
“transactions”: {
//…
}
}
Word: We used JavaScript for the instance above. Nonetheless, you can even use a number of different programming languages, together with Python, TypeScript, and so forth. To study extra about this, try our official get block by block quantity documentation web page.
Web3 Wallets: Python Blockchain API Instance
When constructing a Web3 pockets, you want seamless entry to a person’s transaction historical past so you possibly can show this data. With our Blockchain API, you possibly can seamlessly get this information with a single name to the get_wallet_transactions() endpoint whereas passing alongside two parameters: chain and tackle. Right here’s an instance of what it would appear to be:
params = {
“chain”: “eth”,
“tackle”: “0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326”
}
consequence = evm_api.transaction.get_wallet_transactions(
api_key=api_key,
params=params,
)
In return for calling the get_wallet_transactions() endpoint, you get an array of all inbound and outbound transactions of the supplied tackle. That is what the response can appear to be:
{
“page_size”: 100,
“web page”: 0,
“cursor”: “eyJhbGciOiJIUzI1N//…”,
“consequence”: [
{
“hash”: “0x4742fc54f2f6f1121d472ebc6cad6821f9d79407237c36782641d9873832b825”,
“nonce”: “337201”,
“transaction_index”: “149”,
“from_address”: “0x1f9090aae28b8a3dceadf281b0f12828e676c326”,
“from_address_label”: “rsync-builder”,
“to_address”: “0xde2a1a6dd691e56fc225d13ab51d4e05ea148f2f”,
“to_address_label”: null,
“value”: “38602051712948608”,
“gas”: “21000”,
“gas_price”: “13881451241”,
“input”: “0x”,
“receipt_cumulative_gas_used”: “29986680”,
“receipt_gas_used”: “21000”,
“receipt_contract_address”: null,
“receipt_root”: null,
“receipt_status”: “1”,
“block_timestamp”: “2023-10-31T07:44:23.000Z”,
“block_number”: “18468703”,
“block_hash”: “0x2c00ee96af806132e858edc91406843258d234783c39d30313644b46c2af2315”,
“transfer_index”: [
18468703,
149
]
//…
]
Word: We used Python for this instance. Nonetheless, you can even use many different languages, together with JavaScript, TypeScript, and so forth. Try the official get transactions of tackle documentation to study extra.
Dapp Alerts: TypeScript Blockchain API Instance
When constructing dapps, you usually want a straightforward strategy to arrange alerts so you possibly can notify your finish customers of essential occasions. To take action, you want entry to occasions and logs of good contracts.
So, to get the logs of any contract, all you want is a single API name to the getContractLogs() endpoint whereas passing alongside three parameters: tackle, chain, and matter. That is what a request would possibly appear to be:
const response = await Moralis.EvmApi.occasions.getContractLogs({
“chain”: “0x1”,
“topic0”: “0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef”,
“tackle”: “0xb47e3cd837dDF8e4c57F05d70Ab865de6e193BBB”
});
In return for calling the endpoint above, you’ll get a response containing all logs primarily based in your specs. Right here’s an instance of what it would appear to be:
{
“page_size”: 100,
“web page”: 1,
“cursor”: “eyJhbGciO//…”,
“consequence”: [
{
“transaction_hash”: “0x4abb0d08b5fea482ce708b880c60757635a38203b55fd064148c3f6301206efa”,
“address”: “0xb47e3cd837ddf8e4c57f05d70ab865de6e193bbb”,
“block_timestamp”: “2023-10-31T07:33:35.000Z”,
“block_number”: “18468649”,
“block_hash”: “0x7fd8e733e3a7c03624b9bdcaa058a6be60089093a1d0976db450fb60dbafc0db”,
“data”: “0x0000000000000000000000000000000000000000000000000000000000000001”,
“topic0”: “0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef”,
“topic1”: “0x000000000000000000000000ff36ff458b51dcd034598c56f65a8491427dc572”,
“topic2”: “0x000000000000000000000000e42abe865a7f83f8662e0d602195ade90a569ff0”,
“topic3”: null,
“transaction_index”: 76,
“log_index”: 73
},
//…
]
Word: We used TypeScript within the instance above. Nonetheless, you will get logs utilizing different programming languages as properly, together with JavaScript, Python, and others. To study extra, try the official get logs for contract documentation.
That’s it for our three examples. Within the subsequent part, we’ll offer you a extra in-depth tutorial on how one can name the varied endpoints of the Blockchain API!
Step-by-Step Blockchain API Tutorial
On this part, we’ll offer you an in-depth tutorial on how one can get block information by its quantity utilizing the Moralis Blockchain API. Because of the accessibility of this industry-leading Web3 growth instrument, you will get the information you want in three simple steps:
Get a Moralis API KeyWrite a Script Calling the getBlock() EndpointExecute the Code
Nonetheless, earlier than you possibly can name the getBlock() endpoint, that you must cope with a number of conditions!
Stipulations
In right this moment’s blockchain API instance tutorial, we’ll be utilizing JavaScript. As such, if you wish to comply with alongside, be sure you have the next prepared:
Step 1: Get a Moralis API Key
To have the ability to name the Blockchain API and the getBlock() endpoint, you want a Moralis API key. To get an API key, you want a Moralis account. So, for those who haven’t already, click on on the ”Begin for Free” button on the high proper and arrange your account:
With a Moralis account at hand, head on over to the ”Settings” tab, scroll right down to the ”API Keys” part, and duplicate your key:
Preserve it for now, as you want it within the subsequent part!
Step 2: Write a Script Calling the getBlock() Endpoint
For the second step, begin by establishing a brand new challenge in your built-in growth setting (IDE). From there, open a brand new terminal and run the command under within the challenge’s root folder to put in the Moralis SDK:
npm set up moralis @moralisweb3/common-evm-utils
Subsequent, create a brand new ”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 some other configuration
});
const blockNumberOrHash = “15863321”;
const chain = EvmChain.ETHEREUM;
const response = await Moralis.EvmApi.block.getBlock({
blockNumberOrHash,
chain,
});
console.log(response.toJSON());
};
runApp();
You then want to vary the code barely, and you can begin by changing YOUR_API_KEY with the important thing you copied within the earlier step to initialize Moralis:
Subsequent, configure the blockNumberOrHash and chain constants to suit your question:
We then cross blockNumberOrHash and chain as parameters when calling the getBlock() endpoint:
That’s it; you’re now able to run the code!
Step 3: Execute the Code
For the ultimate step, open a brand new terminal, cd into your challenge’s root folder, and run the next command:
node index.js
Executing the command above will run the code, and in return, you’ll get a bunch of knowledge associated to the block in query. Some distinguished examples embrace a timestamp, log bloom, fuel used, the miner, an array of transactions, and way more. That is what it would appear to be:
{
“timestamp”: “2022-10-30T20:39:11.000Z”,
“quantity”: “15863321”,
“hash”: “0x4f5d3bb78f0311301ef282b281d23e178ced236a7ae465820fe6edeba609954a”,
“parent_hash”: “0x27e61d430386d7b4a144bee6e120a57010fbdb3cf963ca37e2d20b5452203621”,
“nonce”: “0x0000000000000000”,
“sha3_uncles”: “0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347”,
“logs_bloom”: “0x11e91824051850625f13 …”,
“transactions_root”: “0x1e0b205c9c48af7dfa3f277c8ec2ba403dc4ab63635a18bbfe532097527fb18e”,
“state_root”: “0xcb1df24273693eb33869961233baac112adbdf51e980e5cf8b8aa7084e8063be”,
“receipts_root”: “0x3a3d89417ad3898d47f66155e0e5fdf3e1efde2a6f389e7b051acf729db28617”,
“miner”: “0x388C818CA8B9251b393131C08a736A67ccB19297”,
“issue”: “0”,
“total_difficulty”: “58750003716598360000000”,
“dimension”: “117595”,
“extra_data”: “0x”,
“gas_limit”: “30000000”,
“gas_used”: “19044124”,
“transaction_count”: “156”,
“base_fee_per_gas”: “8175724594”,
“transactions”: [
{
//…
]
}
Congratulations; that’s it for this blockchain API tutorial. You now know easy methods to simply get a block’s contents utilizing its quantity!
Additionally, this was only a easy blockchain API instance, and you may comply with the identical steps (with minor configurations to the code within the second half) to name some other of our API endpoints.
To discover all current endpoints, try the official Moralis Blockchain API documentation web page!
Abstract: Blockchain API Instance and Tutorial
In right this moment’s tutorial, we explored the Moralis Blockchain API, which is an industry-leading instrument for getting and integrating blockchain information into Web3 initiatives, together with transactions, logs, occasions, and so forth. This instrument boasts many distinguished options and helps all main chains, making Moralis clearly stand out because the premier choice among the many finest blockchain API suppliers within the enterprise!
Along with exploring the Blockchain API, we additionally confirmed you easy methods to use this instrument to get the content material of a block by its quantity in three simple steps:
Get a Moralis API KeyWrite a Script Calling the getBlock() EndpointExecute the Code
As such, you probably have adopted alongside this far, you now have the talents to fetch information, akin to blocks, occasions, logs, and way more, with Moralis’ Blockchain API!
If you happen to appreciated this Blockchain API tutorial, take into account studying extra guides right here on the weblog. As an example, discover the intricacies of meta transactions, examine EIP-4844, or learn to arrange notifications for NFT gross sales. Additionally, don’t overlook to enroll with Moralis. You may create an account totally free, and also you’ll get instant entry to all industry-leading instruments, together with the Blockchain API!
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