Streams Vs. Ethers.js – The Best Way to Get Real-Time Web3 Data

Are you searching for the best method to combine real-time information into your decentralized functions (dapps)? If that’s the case, you’ve come to the appropriate place. In at this time’s information, we’ll introduce you to Moralis’ Streams API—the final word device for monitoring blockchain occasions. In doing so, we’ll evaluate the Streams API with Ethers.js to spotlight why the previous is the higher possibility for you whenever you want to get real-time Web3 information. For a fast overview, try the comparability desk under:

For an in depth breakdown of the desk above, additional data on Ethers.js and the Streams API, and a step-by-step tutorial on utilizing these instruments, be a part of us on this information as we lay all of it out for you. Alternatively, you possibly can watch the great Moralis YouTube video linked under:

Prepared to begin utilizing the Streams API instantly? Join free with Moralis to acquire on the spot entry to our suite of top-tier improvement instruments!


A method to get real-time Web3 information is to leverage Ethers.js, a distinguished JavaScript library for constructing blockchain-based tasks. Nonetheless, establishing on-chain occasion listeners with Ethers.js could be advanced, time-consuming, and dear. Fortunately, there’s a extra environment friendly various: the Moralis Streams API!

Moralis logo.

The Streams API considerably simplifies the method of getting real-time Web3 information. With our user-friendly interface, you possibly can effortlessly observe any on-chain occasion for any pockets, handle, or asset with just some clicks. Curious to study extra in regards to the Streams API, the way it works, and why it’s a game-changer in contrast to Ethers.js? On this complete information, we’ll delve into all these elements and extra. Let’s get began!

What’s Ethers.js?

Ethers.js is a compact and full JavaScript library for constructing dapps. Like typical programming libraries, Ethers.js presents a group of prewritten code snippets that carry out important on a regular basis features, serving to builders keep away from duplicating effort when creating blockchain-based tasks. As such, Ethers.js streamlines Web3 improvement, permitting customers to seamlessly work together with the Ethereum community and its intensive ecosystem. 

Monitor with Ethereum logo and Ethers.js code.

What are among the core options and advantages of Ethers.js?

  • Light-weight: The Ethers.js library is compact, with a dimension of ~88kb when compressed and ~284kb uncompressed, making it best for dapps the place quick load instances are essential.
  • Complete Performance: Regardless of its small dimension, Ethers.js delivers intensive performance for interacting with the Ethereum community, together with pockets creation, contract interplay, message signing, and extra.
  • Occasion Listeners: Ethers.js permits builders and functions to hear to good contract occasions, facilitating responsive and dynamic dapp experiences.

Now that we have now an summary of what Ethers.js is and its advantages, let’s additionally dive into among the library’s limitations!

Exploring the Limitations of Ethers.js

Whereas Ethers.js can be utilized to get real-time Web3 information, it could not at all times be the perfect alternative. Listed here are three elementary limitations of Ethers.js:

  • Setup Complexity: Configuring information pipelines with Ethers.js is commonly a cumbersome and complex course of. It requires a considerable quantity of code, and builders should devise strategies to monitor every occasion, contract, or asset they need to observe. This makes the setup each time-consuming and resource-intensive.
  • Unstable & Unreliable: When utilizing Ethers.js to get real-time Web3 information, builders work together immediately with RPC nodes. In the event that they select an unreliable supplier, the nodes could be fairly unstable, particularly for newer blockchain networks. Moreover, if an occasion is missed for any purpose, Ethers.js lacks native mechanisms to ship it retroactively.
  • Uncooked Data: Ethers.js returns uncooked, undecoded information. As such, the responses usually embody fundamental data like block numbers, transaction hashes, and so on. To acquire extra data, builders should use numerous third-party APIs, including to the complexity.
Ethers.js data pipeline.

So, what’s the various?

Properly, now you can streamline the method of listening to on-chain occasions with Moralis’ Streams API!

The Final Ethers.js Different – Exploring Moralis’ Streams API

Moralis’ Streams API is the final word device for streaming real-time on-chain information immediately into your dapps. With our user-friendly point-and-click interface, establishing Web3 information pipelines is easy, permitting you to obtain instantaneous updates on any pockets or contract occasion by way of webhooks as quickly as they happen.

Text: "Streams API"

The Streams API is a extremely dynamic and complete answer, supporting over 44 million contracts throughout all main chains, together with Ethereum, Polygon, BNB Good Chain (BSC), and plenty of extra. This highly effective interface covers all forms of occasions, tokens, wallets, DeFi platforms, and extra, offering you with the whole lot you want when it comes to real-time Web3 information.

By leveraging the Streams API, you possibly can seamlessly combine real-time alerts into your dapps, hold your databases populated with the most recent information, and improve your tasks with present, actionable insights.

Now that you’ve got an summary of Moralis’ Streams API, let’s discover the advantages of this premier device! 

Advantages of Moralis’ Streams API

So, why are builders selecting to leverage Moralis’ Streams API as a substitute of Ethers.js to get real-time Web3 information? To reply this query, let’s discover 5 advantages of this industry-leading device: 

  • Easy Setup: The Streams API supplies an intuitive interface, permitting you to monitor occasions for any pockets, handle, or asset with only a click on. Moreover, you possibly can observe a number of occasions in a single stream, together with ERC-20 transfers, native transactions, inside transactions, and extra.
  • Cross-Chain Assist: Moralis helps over 30 blockchain networks and counting. With the Streams API, you possibly can seamlessly add and take away chains out of your streams on the click on of a button.
  • Complete Data: With Moralis’ Streams API, you obtain absolutely decoded information straight out of the field. Every response is enriched with handle labels, token logos, balances, metadata, and rather more.
  • Scalability: The Streams API is probably the most scalable answer for real-time information. Monitor one to 100 million addresses in the identical stream and add or take away any handle on the fly with out breaking a sweat.
  • 100% Supply Assure: In case your infrastructure is down for any purpose, Moralis will hold all failed deliveries in a backlog. You may replay every occasion from there, guaranteeing you by no means miss an on-chain occasion once more.

Full Comparability: The Best Way to Get Real-Time Web3 Data – Moralis Streams API Vs. Ethers.js

Now that you’ve got an summary of each Ethers.js and Moralis Streams, let’s evaluate the 2 to spotlight why you need to use Moralis to get real-time Web3 information: 

Streams vs Ethers.js comparison table.

Tutorial: How to Get Real-Time Web3 Data with Moralis Streams

On this part, we’ll present you ways to seamlessly get real-time Web3 information with Moralis Streams. Particularly, we’ll reveal how to monitor USDC transactions in eight simple steps:

  • Step 1: Join free with Moralis, log into your account, navigate to the “Streams” tab, and click on the “+ Create Stream” button:
Arrows pointing at "Streams" tab and "+ Create Stream" button.
  • Step 2: Present a reputation in your stream and choose the kind of occasions you need to monitor. For this tutorial, select “Contract Events”:
"Contract Events" box checked.
  • Step 3: Specify the good contract occasions you need to observe. On this case, choose “Common Events” adopted by “Token Transfers”:
"Token Transfers" option checked.
  • Step 4: Assign a tag to your stream and choose extra related data you need to embody within the responses:
Additional data step.
  • Step 5: Enter the contract handle(es) you would like to monitor. For this tutorial, we’ll use the USDC contract:
USDC contract address added to input field.
  • Step 6: Select the chain(s) you need to observe. We’ll choose Ethereum, however you possibly can monitor any community(s) you like:
Chain selector.
  • Step 7: Take a look at your stream to guarantee the whole lot works as meant (elective):
Testing step.
  • Step 8: Add your webhook URL, hit the “Continue” button, and click on “Save & Deploy”:
Arrows pointing at "Webhook URL" field, "Continue" button, and "Save & Deploy" button.

As soon as deployed, you’ll obtain real-time updates despatched to your webhook vacation spot each time there’s a brand new USDC switch. Right here’s an instance of what the response would possibly seem like:

  transactionHash: '0x1a3807aa7f7d1f4806245115d7b8a32ec105ce20f2b4a8ca31f9a305127c0201',
  logIndex: '409',
  contract: '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48',
  triggered_by: [Array],
  from: '0x47fbac3d17dcd481c3bb428adde4272b458cf724',
  to: '0x8ad599c3a0ff1de082011efddc58f1908eb6e6d8',
  worth: '5187003613',
  tokenName: 'USD Coin',
  tokenSymbol: 'USDC',
  tokenDecimals: '6',
  valueWithDecimals: '5187.003613',
  possibleSpam: false

Congratulations! You now know the way to get real-time Web3 information with Moralis Streams. From right here, you should use these steps to monitor any customized occasion, pockets, or contract on any blockchain!

For a extra detailed breakdown of the steps and sensible examples of utilizing the Streams API, please watch the Moralis YouTube video under:

Streams API Use Instances

Moralis’ Streams API presents distinctive flexibility, making it appropriate for numerous use circumstances. Listed here are a couple of noteworthy examples:

  • Notifications: Arrange real-time alerts to hold your dapp customers knowledgeable about their pockets holdings. Notify them immediately about occasions resembling worth fluctuations, token transfers, staking rewards, and extra. The Streams API is the proper device for reinforcing consumer engagement in your tasks.
  • Populate Databases: Observe, index, and retailer on-chain occasions in actual time. Keep an correct and complete file of actions associated to any pockets, contract, handle, or asset. This ensures your databases stay dependable and up-to-date.
  • Observe Token Balances: Monitor, replace, and show the balances of customers’ wallets in actual time inside your tasks. That is excellent for implementing options like token gating. 
Ethereum data pipeline.

The examples above are solely a collection of notable use circumstances. Thanks to the Streams API’s distinctive versatility, it may be custom-made for a variety of extra functions!

Past Streams & Ethers.js – Diving Deeper Into Moralis’ Web3 APIs

Moralis is the main information supplier in Web3, providing top-tier nodes and APIs to improve your developer expertise. Our suite of superior improvement instruments contains over ten specialised interfaces, such because the Pockets API, Token API, NFT API, and Streams API. As such, when leveraging Moralis, you possibly can construct cryptocurrency wallets, decentralized exchanges (DEXs), and the whole lot in between with out breaking a sweat!  

Moralis logo.

However what makes our APIs the most effective within the enterprise? 

  • Complete: Our APIs are outcome-driven, offering intensive information with minimal calls. Entry each on-chain and off-chain information in a single request, enabling you to construct dapps extra effectively.
  • Cross-Chain Compatibility: Simplify your improvement course of with APIs that help a number of chains. Construct dapps on Ethereum, Polygon, BSC, and extra networks utilizing one unified toolkit.
  • Safe: Take pleasure in enterprise-grade information safety with Web3’s solely SOC 2 Sort 2 licensed infrastructure supplier.

Now, to additional spotlight the ability of Moralis, let’s dive into our Web3 API suite! 

Moralis’ Web3 API Suite

Our suite of premier APIs options over ten use case-specific interfaces. And whereas we will’t cowl all of them on this information, we’ll spotlight three key examples you’ll probably discover useful when constructing dapps:

  • Pockets API: The Pockets API is a cutting-edge interface for constructing wallets and integrating pockets performance into dapps. With the Pockets API, you possibly can simply retrieve any pockets’s historical past, internet price, profitability, token balances, and extra with just some strains of code.
Text: "Wallet API"
  • Token API: The Token API is your go-to interface for ERC-20 information, best for creating DEXs, token explorers, and related functions. This intuitive API permits you to seamlessly fetch token balances, metadata, costs, and rather more, simplifying your improvement course of.
Text: "Token API"
  • NFT API: Moralis’ NFT API is ideal for creating NFT marketplaces, Web3 video games, or some other NFT-based platforms. With single strains of code, you possibly can entry NFT balances, metadata, costs, and extra utilizing the NFT API.
Text: "NFT API"

Please go to the official Web3 API web page for an in-depth have a look at these interfaces and to study extra about our different APIs!

Abstract: Streams Vs. Ethers.js – The Best Way to Get Real-Time Web3 Data

A method to get real-time Web3 information is to leverage Ethers.js, a widely known JavaScript library for constructing dapps. Nonetheless, monitoring blockchain occasions with Ethers.js could be difficult, time-consuming, and costly. Luckily, there’s a greater various: Moralis’ Streams API!

The Streams API simplifies the method of fetching real-time Web3 information. With its intuitive point-and-click interface, you possibly can simply arrange streams to monitor occasions for any pockets, handle, or asset on any chain with out breaking a sweat! 

However what makes the Streams API a superior alternative in contrast to Ethers.js for querying real-time Web3 information?

Right here’s a fast comparability of the 2:

In case you discovered this information on Ethers.js and Streams useful, take into account exploring extra content material on our weblog. As an example, try our latest articles on:

Moreover, if you need to use the Streams API your self, be certain to register for an account with Moralis. You may join free and acquire on the spot entry to our industry-leading improvement instruments!

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