Construct on OP Mainnet – Full 2024 Information

In at this time’s article, we’ll present you the best way to construct decentralized purposes (dapps) on OP Mainnet utilizing Moralis’ industry-leading Web3 APIs. With our premier APIs, you possibly can seamlessly fetch and combine on-chain knowledge into your tasks with solely single API calls. Consequently, when leveraging Moralis, you can begin constructing OP Mainnet tasks sooner and extra effectively! 

In case you’re desperate to get going with the code, right here’s a little bit sneak peek of three endpoints for querying a pockets’s native and NFT balances, together with the worth of a token: 

• getNativeBalance() – Fetch the native stability of any pockets:

const response = await Moralis.EvmApi.stability.getNativeBalance({
  "chain": "0xa",
  "deal with": "0xCBA6a2397b322CF1389f6d1adc05F75F36B20116"
});

• getWalletNFTs() – Get the NFT stability of any pockets:

const response = await Moralis.EvmApi.nft.getWalletNFTs({
  "chain": "0xa",
  "deal with": "0xCBA6a2397b322CF1389f6d1adc05F75F36B20116"
});

• getTokenPrice() – Question the worth of any fungible token:

const response = await Moralis.EvmApi.token.getTokenPrice({
  "chain": "0xa",
  "deal with": "0x4200000000000000000000000000000000000042"
});

To discover different endpoints and our APIs in additional element, try our official Moralis documentation web page or be part of us on this article as we present you the best way to construct on OP Mainnet with out breaking a sweat! Now, if you wish to comply with alongside all through this tutorial, don’t neglect to enroll with Moralis. You possibly can create an account in a heartbeat, and also you’ll get on the spot entry to our premier Web3 API suite! 

Overview 

We’ll kickstart at this time’s article by exploring the ins and outs of OP Mainnet. In doing so, we’ll clarify what the community is, the way it works, and canopy some advantages of constructing dapps on OP Mainnet. From there, we’ll introduce you to Moralis and our industry-leading Optimism API suite. Upon getting an outline of Moralis, we’ll bounce straight into the principle tutorial and present you the best way to construct on OP Mainnet in three steps: 

• Step 1: Create a Moralis Account and Get Your API Key
• Step 2: Select OP Mainnet API Endpoints
• Step 3: Write a Script and Run the Code

To prime issues off, we’ll cowl a short listing of OP Mainnet tasks to offer you some inspiration on your subsequent dapp! 

If this sounds thrilling, be part of us within the following part as we begin by discovering what OP Mainnet is!

What’s OP Mainnet? 

OP Mainnet – also referred to as Optimism – launched in 2021, and it’s a low-cost and lightning-fast ETH layer-2 (L2) scaling answer. This blockchain community serves as a basis for an unlimited ecosystem that encompasses a wide selection of decentralized purposes (dapps). This consists of cryptocurrency wallets, decentralized exchanges (DEXs), and different outstanding Web3 tasks!

So, why do you have to construct dapps on OP Mainnet? To reply this query, let’s have a look at three advantages of this community: 

• Velocity and Effectivity: OP Mainnet leverages “optimistic rollup” expertise to bundle a whole bunch of off-chain operations right into a single Ethereum transaction. In doing so, the community can considerably enhance Ethereum’s scalability by facilitating faster transactions at a low value. This makes OP Mainnet a extra environment friendly and cost-effective answer for finish customers and builders alike.

• Modern Infrastructure: Via OP Mainnet’s Superchain challenge, the community seeks to maximise interoperability and composability between blockchains utilizing the OP Stack. In doing so, OP Mainnet goals to combine a number of siloed L2 scaling options right into a single, unified layer. 

• Scalable Ecosystem: With EVM-equivalence, all Ethereum dapps will work completely on OP Mainnet. This implies you need to use the identical established growth instruments to construct on OP Mainnet as you’ll on Ethereum. 

That provides you an outline of OP Mainnet and the advantages of this community. Within the subsequent part, we’ll introduce you to the best strategy to construct OP Mainnet dapps: Moralis! 

Best Technique to Construct on OP Mainnet – Introducing Moralis 

Moralis is an industry-leading Web3 API supplier, and its toolset of absolutely OP Mainnet-compatible APIs presently powers blockchain and crypto purposes for tens of millions of customers worldwide!

In Moralis’ suite of Web3 APIs, you’ll discover greater than ten interfaces for varied use instances, together with the Pockets API, NFT API, and Token API. With these premier APIs, it’s doable to question blockchain knowledge with solely single strains of code. As such, you possibly can seamlessly construct OP Mainnet dapps each sooner and extra effectively utilizing Moralis.

Nevertheless, what makes Moralis stand out in comparison with the competitors? To reply this query, let’s discover three advantages of our premier Web3 APIs:

• Complete: All our API responses are enriched with metadata, transaction decodings, market knowledge, deal with labels, and way more from a number of sources. This allows us to supply the {industry}’s most complete APIs which might be designed with the result in thoughts, minimizing the variety of calls it is advisable to construct Web3 tasks.

• Easy: Moralis is the one Web3 API supplier that’s easy and intuitive to make use of. All of our requests and responses adhere to the identical customary and construction throughout varied APIs tailor-made for particular use instances.

• Trusted: Our Web3 APIs are trusted by a whole bunch of 1000’s of builders and enterprise prospects like MetaMask, Polygon, Delta, and so forth. So, if you wish to emulate a few of the Web3 {industry}’s largest names, think about using Moralis.

In case you’d prefer to discover all our interfaces, try the official Web3 API web page! 

Additionally, do you know that you may entry our Web3 APIs free of charge? Merely enroll with Moralis, and also you’ll be capable of construct OP Mainnet dapps with out breaking a sweat! 

3-Step Tutorial: Easy methods to Construct on OP Mainnet 

Now, with an outline of Moralis, let’s dive into the principle part of this information and present you the best way to construct on OP Mainnet in three easy steps: 

• Step 1: Create a Moralis Account and Get Your API Key
• Step 2: Select OP Mainnet API Endpoints
• Step 3: Write a Script and Run the Code

Nevertheless, earlier than you may get going, it is advisable to take care of a few conditions! 

Conditions 

Moralis’ Web3 APIs are appropriate with a number of programming languages, together with Python, Go, and so forth. Nevertheless, on this tutorial, we’ll be utilizing JavaScript and NodeJS. As such, earlier than you proceed, be sure to have the next prepared: 

Step 1: Create a Moralis Account and Get Your API Key 

The very first thing you’ll want is a Moralis account. As such, for those who haven’t already, click on on the ”Begin for Free” button on the prime proper of Moralis’ homepage and arrange an account: 

After creating an account and logging in, you’ll discover that Moralis has robotically arrange a brand new challenge for you: 

The very first thing chances are you’ll wish to do is rename the challenge below ”Settings”: 

Subsequent, scroll right down to the ”API Keys” part and duplicate your Moralis API key: 

Please preserve it for now, as you’ll want it within the third step! 

Step 2: Select OP Mainnet API Endpoints 

On this part, we’ll dive a bit deeper into the varied APIs of Moralis to offer you an outline of what OP Mainnet tasks you possibly can construct with our premier instruments. Extra particularly, we’ll concentrate on the next three APIs and their respective endpoints: 

• Pockets API 
• NFT API
• Token API

So, let’s kick this off by exploring the ins and outs of Moralis’ Pockets API! 

Pockets API 

Moralis’ Pockets API is the final word software for constructing cryptocurrency wallets and integrating pockets performance into OP Mainnet tasks. The Pockets API helps 500+ million addresses throughout the largest blockchains, together with Ethereum, Polygon, BSC, and, after all, OP Mainnet! 

With this industry-leading software, you possibly can effortlessly question the native stability, NFT stability, profile knowledge, token transfers, transactions, and extra of any cryptocurrency deal with. As such, with the Pockets API, you possibly can construct every little thing from portfolio trackers to cryptocurrency wallets on OP Mainnet with out breaking a sweat. 

To focus on the accessibility of this software, listed below are three outstanding endpoints you’ll possible discover useful when constructing dapps: 

• getNativeBalance() – Question the native stability of any pockets deal with: 

const response = await Moralis.EvmApi.stability.getNativeBalance({
  "chain": "0xa",
  "deal with": "0xCBA6a2397b322CF1389f6d1adc05F75F36B20116"
});

getNativeBalance() response: 

{
  "stability": "50640324378835108031"
}

• getWalletTransactions() – Fetch the native transaction historical past of any pockets:

const response = await Moralis.EvmApi.transaction.getWalletTransactions({
  "chain": "0xa",
  "deal with": "0x2a82ae142b2e62cb7d10b55e323acb1cab663a26"
});

getWalletTransactions() response: 

[
    //...
    {
      "hash": "0x6cbb692563bfb4adfa0850a4d68cbed848ba9be2b73fe04f42a49b81305e3eab",
      "nonce": "13",
      "transaction_index": "5",
      "from_address": "0xcd3031fb7da6c6764466a6f77ec74e52a4cea810",
      "from_address_label": null,
      "to_address": "0x2a82ae142b2e62cb7d10b55e323acb1cab663a26",
      "to_address_label": null,
      "value": "27200000",
      "gas": "21000",
      "gas_price": "50000000",
      "input": "0x",
      "receipt_cumulative_gas_used": "363490",
      "receipt_gas_used": "21000",
      "receipt_contract_address": null,
      "receipt_root": null,
      "receipt_status": "0",
      "block_timestamp": "2023-11-18T09:10:23.000Z",
      "block_number": "112349923",
      "block_hash": "0xd92193788b4f8ed5c991819ecf22433a4a5eca8b45974c90115c852635dcc4d3",
      "transfer_index": [
        112349923,
        5
      ]
    },
    //...
]

• getWalletTokenBalances() – Get the token balances of any pockets: 

const response = await Moralis.EvmApi.token.getWalletTokenBalances({
  "chain": "0xa",
  "deal with": "0x2a82ae142b2e62cb7d10b55e323acb1cab663a26"
});

getWalletTokenBalances() response:

[
  {
    "token_address": "0x7f5c764cbc14f9669b88837ca1490cca17c31607",
    "symbol": "USDC",
    "name": "USD Coin",
    "logo": null,
    "thumbnail": null,
    "decimals": 6,
    "balance": "2000000",
    "possible_spam": false,
    "verified_contract": true
  },
  {
    "token_address": "0x4200000000000000000000000000000000000042",
    "symbol": "OP",
    "name": "Optimism",
    "logo": null,
    "thumbnail": null,
    "decimals": 18,
    "balance": "1294044371320286807123702580",
    "possible_spam": false,
    "verified_contract": true
  },
  //...
]

NFT API 

The NFT API helps over three million collections throughout ten+ EVM-compatible chains, together with every little thing from well-established tasks to tokens that dropped simply seconds in the past. Consequently, this software takes care of all of your NFT data-related growth wants! 

With the NFT API, you solely want single API calls to seamlessly fetch real-time NFT transfers, on-chain value knowledge, enriched metadata, and extra. So, when working with this premier software, you possibly can construct every little thing from NFT marketplaces to Web3 video games with ease. 

Listed below are three outstanding endpoints to spotlight the accessibility of our NFT API: 

• getNFTMetadata() – Get the metadata of any NFT: 

const response = await Moralis.EvmApi.nft.getNFTMetadata({
  "chain": "0xa",
  "deal with": "0xB8Df6Cc3050cC02F967Db1eE48330bA23276A492",
  "tokenId": "1"
});

getNFTMetadata() response:

{
  "quantity": "1",
  "token_id": "1",
  "token_address": "0xb8df6cc3050cc02f967db1ee48330ba23276a492",
  "contract_type": "ERC721",
  "owner_of": "0xb09fa44ef3bcbd1bf2d35d5644a19e188d4c05f6",
  "last_metadata_sync": "2024-02-01T15:09:43.956Z",
  "last_token_uri_sync": "2024-02-01T15:09:42.794Z",
  "metadata": "{"identify":"Optipunk #1","description":"10,000 distinctive collectible characters with proof of possession saved on Optimism","attributes":[{"trait_type":"Type","value":"Male"},{"trait_type":"Accessory","value":"Smile"},{"trait_type":"Accessory","value":"Mohawk"}],"picture":"ipfs://QmbAhtqQqiSQqwCwQgrRB6urGc3umTskiuVpgX7FvHhutU/1.png"}",
  "block_number": "97749",
  "block_number_minted": "97749",
  "identify": "OptiPunk",
  "image": "OPPUNK",
  "token_hash": "364af8044f93145cf5859151b46223a3",
  "token_uri": "https://ipfs-metadata.moralis.io:2053/ipfs/QmZYqgu73bpovLt7Y4kYfCPUbbgdRfvcsja8YZsprKismB/1",
  "minter_address": "0xb09fa44ef3bcbd1bf2d35d5644a19e188d4c05f6",
  "verified_collection": false,
  "possible_spam": false
}

• getWalletNFTs() – Fetch the NFT stability of a pockets:

const response = await Moralis.EvmApi.nft.getWalletNFTs({
  "chain": "0xa",
  "deal with": "0xCBA6a2397b322CF1389f6d1adc05F75F36B20116"
});

getWalletNFTs() response:

[
    {
      "amount": "1",
      "token_id": "3569948",
      "token_address": "0xd12999440402d30f69e282d45081999412013844",
      "contract_type": "ERC721",
      "owner_of": "0xcba6a2397b322cf1389f6d1adc05f75f36b20116",
      "last_metadata_sync": "2024-02-01T15:03:42.174Z",
      "last_token_uri_sync": "2024-02-01T15:03:42.039Z",
      "metadata": "//...",
      "block_number": "107697133",
      "block_number_minted": "107306857",
      "name": "Omnichain Adventures",
      "symbol": "OMNIA",
      "token_hash": "f50ea59436c7eda79995a4e694d53f72",
      "token_uri": "https://yvsbrs5apkpplrjba65gcet4zbe3wsv6i5y3e44vgxcunjwopsmq.arweave.net/xWQYy6B6nvXFIQe6YRJ8yEm7Sr5HcbJzlTXFRqbOfJk",
      "minter_address": "0x8caf185283211beab492601825fee0b44f8633aa",
      "verified_collection": false,
      "possible_spam": false
    }
]

• getNFTOwners() – Question an array of all NFT homeowners for a given contract:

const response = await Moralis.EvmApi.nft.getNFTOwners({
  "chain": "0xa",
  "deal with": "0xB8Df6Cc3050cC02F967Db1eE48330bA23276A492"
});

getNFTOwners() response: 

[
   {
      "amount": "1",
      "token_id": "2329",
      "token_address": "0xb8df6cc3050cc02f967db1ee48330ba23276a492",
      "contract_type": "ERC721",
      "owner_of": "0x0331969e189d63fbc31d771bb04ab44227d748d8",
      "last_metadata_sync": "2024-02-01T15:10:32.987Z",
      "last_token_uri_sync": "2024-02-01T15:10:31.531Z",
      "metadata": "//...",
      "block_number": "135838",
      "block_number_minted": "135838",
      "name": "OptiPunk",
      "symbol": "OPPUNK",
      "token_hash": "6206b15eef897e716a8f943c61718039",
      "token_uri": "https://ipfs-metadata.moralis.io:2053/ipfs/QmZYqgu73bpovLt7Y4kYfCPUbbgdRfvcsja8YZsprKismB/2329",
      "minter_address": "0x0331969e189d63fbc31d771bb04ab44227d748d8",
      "verified_collection": false,
      "possible_spam": false
    },
    //...
]

Token API 

The Token API is the {industry}’s most complete software for fungible token knowledge, supporting each single token throughout greater than ten blockchains, together with OP Mainnet, Ethereum, Polygon, and BNB Good Chain! 

With the Token API, you possibly can seamlessly fetch costs, transfers, balances, metadata, and way more for any ERC-20 token. As such, when utilizing this premier API, you possibly can construct every little thing from DEXs to token explorers very quickly. 

To focus on the accessibility of the Token API, listed below are three endpoints you’ll discover useful when constructing OP Mainnet dapps: 

• getTokenPrice() – Get the worth of any fungible token: 

const response = await Moralis.EvmApi.token.getTokenPrice({
  "chain": "0xa",
  "deal with": "0x4200000000000000000000000000000000000042"
});

getTokenPrice() response: 

{
  "tokenName": "Optimism",
  "tokenSymbol": "OP",
  "tokenLogo": null,
  "tokenDecimals": "18",
  "nativePrice": {
    "worth": "1346688388542655",
    "decimals": 18,
    "identify": "Ether",
    "image": "ETH",
    "deal with": "0x4200000000000000000000000000000000000006"
  },
  "usdPrice": 3.357083520606333,
  "usdPriceFormatted": "3.357083520606332971",
  "exchangeName": "Uniswap v3",
  "exchangeAddress": "0x1F98431c8aD98523631AE4a59f267346ea31F984",
  "tokenAddress": "0x4200000000000000000000000000000000000042",
  "priceLastChangedAtBlock": "115945253",
  "verifiedContract": true
}

• getTokenMetadata() – Fetch the metadata of any token:

const response = await Moralis.EvmApi.token.getTokenMetadata({
  "chain": "0xa",
  "addresses": [
    "0x4200000000000000000000000000000000000042"
  ]
});

getTokenMetadata() response:

 [
  {
    "address": "0x4200000000000000000000000000000000000042",
    "address_label": null,
    "name": "Optimism",
    "symbol": "OP",
    "decimals": "18",
    "logo": null,
    "logo_hash": null,
    "thumbnail": null,
    "block_number": "0",
    "validated": 1,
    "created_at": null,
    "possible_spam": false,
    "verified_contract": true
  }
]

• getTokenTransfers() – Question all transactions for a given token contract: 

const response = await Moralis.EvmApi.token.getTokenTransfers({
  "chain": "0xa",
  "deal with": "0x4200000000000000000000000000000000000042"
});

getTokenTransfers() response:

[
   {
      "token_name": "Optimism",
      "token_symbol": "OP",
      "token_logo": null,
      "token_decimals": "18",
      "from_address": "0x666936a007c8c2e70dd5aae9151fd50de858fb16",
      "from_address_label": null,
      "to_address": "0x2580fe0cdd3a2300f4fe9637e7d4b44d47f1f63b",
      "to_address_label": null,
      "address": "0x4200000000000000000000000000000000000042",
      "block_hash": "0x4f99ed7e331b422c87d73eed2a60e98417d072ed64d0ceab57e7479d76aeb58b",
      "block_number": "115945333",
      "block_timestamp": "2024-02-09T14:37:23.000Z",
      "transaction_hash": "0xf8e82cbe28afb6e3adea9ef0c34132588ff29a8cc16b0cc48cf516efc0a68d05",
      "transaction_index": 10,
      "log_index": 48,
      "value": "600000000000000000000",
      "possible_spam": false,
      "value_decimal": "600",
      "verified_contract": true
    },
]

Step 3: Write a Script and Run the Code

When you select the suitable endpoints on your explicit challenge, all that is still is so that you can name them. And we’ll present you precisely how to take action on this last step of our tutorial! 

On this case, we’ll use the getWalletTokenBalances() endpoint for example. Nevertheless, for those who’re interested by every other endpoint, fear not, as you possibly can comply with just about the identical steps for all endpoints. 

Begin by organising a folder in your IDE and run the terminal command beneath to initialize a brand new challenge:

npm init

Subsequent, run the instructions beneath within the terminal to put in the Moralis SDK:

npm set up moralis @moralisweb3/common-evm-utils

From right here, open your ”bundle.json” file and add ”sort”: ”module”: 

You possibly can then create a brand new ”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": "0xa",
    "deal with": "0x2a82ae142b2e62cb7d10b55e323acb1cab663a26"
  });

  console.log(response.uncooked);
} catch (e) {
  console.error(e);
}

You now have to make just a few small configurations to the code. Initially, it is advisable to exchange YOUR_API_KEY with the important thing you copied throughout step one. Subsequent, you additionally have to configure the deal with parameter to suit your question: 

From right here, you solely have to run the code. To take action, open a brand new terminal and execute the command beneath within the challenge’s root folder:

node index.js

In return, you’ll get a response containing an array of the token balances of the required deal with. It can look one thing like this: 

[
  {
    "token_address": "0x7f5c764cbc14f9669b88837ca1490cca17c31607",
    "symbol": "USDC",
    "name": "USD Coin",
    "logo": null,
    "thumbnail": null,
    "decimals": 6,
    "balance": "2000000",
    "possible_spam": false,
    "verified_contract": true
  },
  {
    "token_address": "0x4200000000000000000000000000000000000042",
    "symbol": "OP",
    "name": "Optimism",
    "logo": null,
    "thumbnail": null,
    "decimals": 18,
    "balance": "1294044371320286807123702580",
    "possible_spam": false,
    "verified_contract": true
  },
  //...
]

That’s it! You now know the best way to question every little thing from pockets balances to token transactions utilizing Moralis’ premier Web3 API suite. In flip, you’re now able to take your growth endeavors to the subsequent degree and begin constructing OP Mainnet dapps!

Dapp Concepts – Exploring a Listing of Optimism Tasks

With a greater understanding of how one can construct dapps on OP Mainnet utilizing Moralis’ Web3 APIs, you would possibly now be in search of some inspiration on your subsequent challenge. Consequently, we’ll take this part to discover 5 outstanding OP Mainnet tasks: 

If you wish to discover tasks not coated above, please try our complete listing of prime Optimism dapps on Moralis’ Web3 Wiki!

Abstract: Easy methods to Construct on OP Mainnet

In at this time’s article, we confirmed you the best way to construct on OP Mainnet with Moralis in three easy steps: 

• Step 1: Create a Moralis Account and Get Your API Key
• Step 2: Select OP Mainnet API Endpoints
• Step 3: Write a Script and Run the Code

When you have adopted alongside this far, you now know the best way to construct dapps on Optimism seamlessly! Additionally, for those who haven’t already, don’t neglect to enroll with Moralis. You possibly can enroll with the press of some buttons, and also you’ll achieve on the spot entry to our industry-leading OP Mainnet API suite so you can begin constructing dapps sooner and extra effectively!