We have developed around 50+ blockchain projects and helped companies to raise funds.
You can connect directly to our Polkadot developers using any of the above links.

Talk  to Polkadot Developer

How to Create and Deploy Smart Contracts on Polkadot

Building smart contracts directly on Polkadot is impossible unless we use specific WASM and EVM technologies. This precludes the possibility of writing smart contracts directly on Polkadot. In other words, by utilizing Parachain as a blockchain ecosystem, we can develop a blockchain or a decentralized application (dApp). Then we can utilize the Relay chain to interact with the core Polkadot Development Network.

Polkadot uses software development kits (SDKs) for blockchain technology made available by Substrate. The implementation of components such as token balances is included in these software development kits (SDKs), along with network logic, a transaction queue, a web assembly interpreter, and so on. ParaState, a multi-chain platform based on Substrate, is the first and only solution on the market that natively offers complete compatibility with the Ethereum Virtual Machine (EVM) and Ewasm (Ethereum-flavored WebAssembly Virtual Machine.

What is Parastate?

Parastate is the premier blockchain solution. It integrates EVASM and EVM technology, making it possible for developers of next-generation web3 apps to construct their products without being constrained. ParaState provides actual interoperability, which assists in bridging the gap between Ethereum's enormous user base and the more sophisticated technology utilized by other big networks. ParaState will offer toolings that will make it possible to create smart contracts compatible with Ethereum in more popular languages, such as Rust and other domain-specific languages, which will bring together a larger and more diverse community of software developers.

Polkadot is a next-generation blockchain platform that is designed to support the development of decentralized applications (dApps) and smart contracts. It is known for its scalability, interoperability, and modular design, which make it a particularly good choice for smart contract development. With its fast transaction processing times, flexible governance model, and growing ecosystem of dApps and partners, Polkadot provides a strong foundation for secure and reliable smart contract development Whether you are building a simple utility contract or a complex decentralized application, Polkadot offers the tools and resources you need to succeed.

Creating a Basic Application on Polkadot Using Parastrate

Decentralized application developers are faced with a number of challenges due to Ethereum's inability to scale, and Polkadot offers them a solution to these challenges by utilizing the Substrate design. ParaState, a multi-chain platform based on Substrate, is the first and only solution on the market that natively offers complete compatibility with the Ethereum Virtual Machine (EVM) and EWASM. This technique has been found successful in creating basic applications on Polkadot.

Creating a Parastate Account and Getting Test Tokens

Let us show you the utilization of Metamask for Gaining Access to the ParaState TestNet.

To get started, you will need to download and run the installation for the MetaMask extension. However, because ParaState is compatible with Ethereum, it is feasible to use it in the same manner as Metamask by defining a unique RPC endpoint. This is because Metamask contains support for the Ethereum blockchain as part of its default functionality.

It is important to develop a specialized RPC Endpoint to connect to the ParaState TestNet. This step must be taken before you can connect. Pick the network that you are presently connected to by clicking on it at the very top, and then select the Custom RPC option that appears below it.

Following that, you will be required to finish the Endpoint Information by entering the following:

Network Name: ParaState

New RPC URL: https://rpc.parastate.io:8545

Chain ID: 123

Currency Symbol (Optional): STATE

Once making your selections, all that's left to do is click the Save button.

To create a brand-new account, click the symbol that is situated in the top-right-hand corner of the display, as seen in the image that follows, and then pick Create Account:

On the next box, choose the kind of account you want to use, fill out the fields relevant to that account, and finally, click the Create button. You ought to have been able to create a new account without any kind of difficulty at all!

Now navigate to the official test net faucet for ParaState, which may be found at faucet.parastate.io. Enter the address for ParaState that you have just copied, make sure the checkbox is checked, and click Fund. You should check this address for any STATE testnet tokens sent to you shortly.

Scale your Polkadot projects with us

Importing the Account

There are several crypto wallets from where you can import or buy a ParaState account. If you are utilizing the Coinbase Wallet application on your mobile phone to make purchases, then you can purchase ParaState using that application. Click the plus sign Buy button located under the Assets tab. Following that, click the "Trade" option from the menu. At this location, you can exchange ETH for any token that satisfies the Ethereum standard and is known as an "ERC-20 token." Tap the "pick coin" button and select ParaState from the drop-down menu. Enter the total number of ETH you intend to exchange for the quantity of ParaState you selected. Ensure to set aside enough money to cover the fees associated with the transaction. Confirm that you want to proceed with the purchase, and then follow the steps displayed on the screen to finish the transaction.

Writing the Deposit, Withdrawal, and Balance Retrieval Smart Contract

After the account configuration has been finished, the only thing left for you to do is create some smart contracts. You will need to execute the four essential operations performed on the smart contract to succeed in this endeavor.

  • Deposit
  • Withdrawal
  • Balance Retrieval
  • Getting the Address

To deploy your chain, all you need to do is tap on the button that is designated for that purpose. With the following steps, you will be able to observe all of the functions you have developed, making it possible for you to determine whether or not it is operating properly. After compilation, you will get the ABI and the ByteCode.

Testing the Smart Contract.

You also can verify that the smart contract is functioning properly. If I click on GetBalance, it will show me the value now. If you choose GetAddress from the menu, it will be presented with the address connected to the account. The transaction that is now being performed will be shown to you if you pick "withdraw transact" from the menu. For example, suppose you enter the sum of the “10” value here once the transaction has been properly completed. In that case, your remaining balance will be displayed by that amount with the amount ‘’10’’ being deducted. As a result, this provides evidence that there are no problems with how your smart contract is being carried out.

Writing the CSS

Even though it was first introduced in 1996, the Cascading Style Sheet (also known as CSS) continues to be an indispensable and user-friendly instrument for developing traditional websites of a high-quality standard. The programming language chosen to create a website will determine its appearance and how it is organized. In addition to HTML, cascading style sheets (CSS) are an important part of web design. In its absence, websites would still just consist of white text on a white background.

Using the CSS programming language, web developers are provided the power to modify the look of websites and their functionality. This includes the text's color, the font type used, the layout's patterns, the amount of space between paragraphs, the lengths of the columns, and so on.

Moreover, it makes site maintenance easier, which results in the site being simple to keep up with. Changing a single line of code across a website's pages may reduce the time spent on website maintenance. CSS helps minimize web page structure complexity, making it simpler and easier to read and grasp for search engine spiders. This is an important step in optimizing websites for search engines.

Writing the HTML

HTML (Hypertext Markup Language) components are those parts of every website that are essential to its operation. The markup language HTML allows for embedding pictures and other objects and may also be used to design interactive forms. In addition, HTML facilitates the usage of hyperlinks. It provides a method for constructing structured documents by allowing users to explain the document's structure for elements like headings, paragraphs, lists, links, quotes, and other objects. This enables the organization of information in a more structured fashion than was previously feasible.

If your website has HTML errors, the amount of time required for the search engine to crawl your page will rise, which will cause the loading time to increase as a direct result. Not only is it crucial for the content that is read by visitors using mobile devices or dial-up connections, but increasing the speed at which a website load is important overall.

If you utilize uncomplicated and easy-to-understand code, search engines will be able to spider your website more quickly and thoroughly. Tons of websites are out there all vying for the top spots in the results of search engines, and search engines use complex formulas to determine which page on the web should match any keyword search. Consequently, obtaining a high position in the results provided by search engines is a challenging endeavor.

Let's build together on Polkadot Blockchain

Writing the Javascript

The most prevalent use for JavaScript is in web development, also acknowledged as one of the most powerful tools a programmer may have in their gear bag. Web developers use JavaScript to give interactivity and features that make using the internet a significantly more enjoyable experience for users and increase the overall quality of the user experience. JavaScript is utilized to accomplish both of these goals.

JavaScript, included in this category, is a language used for scripting on the client side. The great majority of online applications, such as search engines, can only work because of the connection established between the device that the user and a remote server are using. The program operating on the remote server will send data to the client, which will be read by the application operating on the client's computer, showing a Web page on the screen. All of this will take place on the client's computer.

JavaScript is not the only client-side scripting language that is accessible on the Internet; nonetheless, it was among the first, and it continues to be the one that is used the most frequently. The programming language known as JavaScript has seen a significant change over the past several years due to the prevalent view among developers that JavaScript is both useless and difficult to use.

We Can Help You Build Blockchains and DApps Using Multiple Polkadot Framework

Our blockchain development experts are proficient in multiple Polkadot frameworks, and we carefully review your requirements to find the best match of technical feasibility and business needs. Our vast experience in substrate development and parachain building positions us as the best blockchain development company to work with in the crypto space.

Because blockchains generated using Substrate are inherently compatible with Polkadot, it is not difficult to connect them to Polkadot either as a parachain or parathread. This is because Polkadot was designed to work with blockchains, and we can assist you in your understanding of polkadot development and how it works. Thus making things easy for you.

You do not have to do a hard fork to update your blockchain. Your chain's governance mechanism may be used to change your runtime, a Wasm binary kept on-chain. This binary can be updated using the unique governance method of your chain.

On Polkadot, the development of decentralized apps (dApps) is made possible by Substrate, which offers all essential building blocks. It will be much simpler for you to focus on making certain modifications and features in line with the prerequisites of your project as a result of having this available to you. A blockchain application may be quickly and simply set up using a template for an application node built on Substrate and ready to use with all its fully operational functions.


Polkadot is an ecosystem that brings together and secures specialized blockchains called parachains. This ecology is becoming more extensive. The applications and services that are hosted on Polkadot can communicate with one another in a secure manner across chains. This lays the framework for a decentralized web that is truly interoperable.

On top of that, with Substrate at hand, it allows you to simply plug in the features you desire while also giving you the freedom to alter it as needed to meet your specific needs.

Next Article

How to Create NFT Marketplace on NEAR


NFTs, or non-fungible tokens, became a popular topic in 2021's digital world, comprising digital music, trading cards, digital art, and photographs of animals. Know More

Blockchain is a network of decentralized nodes that holds data. It is an excellent approach for protecting sensitive data within the system. Know More


The Rapid Strategy Workshop will also provide you with a clear roadmap for the execution of your project/product and insight into the ideal team needed to execute it. Learn more

It helps all the stakeholders of a product like a client, designer, developer, and product manager all get on the same page and avoid any information loss during communication and on-going development. Learn more

Why us

We provide transparency from day 0 at each and every step of the development cycle and it sets us apart from other development agencies. You can think of us as the extended team and partner to solve complex business problems using technology. Know more

Other Related Services From Rejolut

Chainlink Vs Polkadot

The Dogfight Between The Altcoins Is Getting Interesting Every Day.

Blockchain in Financial Services

Blockchain technology is one of the most promising financial industries.

Blockchain in Insurance Industry

Insurance policies have always been difficult to manage and record.

Why Rejolut?

1 Reduce Cost

We’ll work with you to develop a true ‘MVP’ (Minimum Viable Product). We will “cut the fat” and design a lean product that has only the critical features.

2 Define Product Strategy

Designing a successful product is a science and we help implement the same Product Design frameworks used by the most successful products in the world (Ethereum, Solana, Hedera etc.)

3 Speed

In an industry where being first to market is critical, speed is essential. Rejolut's rapid prototyping framework(RPF) is the fastest, most effective way to take an idea to development. It is choreographed to ensure we gather an in-depth understanding of your idea in the shortest time possible.

4 Limit Your Risk

Rejolut RPF's helps you identify problem areas in your concept and business model. We will identify your weaknesses so you can make an informed business decision about the best path for your product.

Our Clients

We as a blockchain development company take your success personally as we strongly believe in a philosophy that "Your success is our success and as you grow, we grow." We go the extra mile to deliver you the best product.



Tata Communications

Malaysian airline

Hedera HashGraph



Jazeera airline


Hbar Price





The Purpose Company

Hashing Systems




Verified Network

What Our Clients Say

Don't just take our words for it

I have worked with developers from many countries for over 20 years on some of the most high traffic websites and apps in the world. The team at rejolut.com are some of most professional, hard working and intelligent developers I have ever worked with rejolut.com have worked tirelessly and gone beyond the call of duty in order to have our dapps ready for Hedera Hashgraph open access. They are truly exceptional and I can’t recommend them enough.
Joel Bruce
Co-founder, hbarprice.com and earthtile.io
Rejolut is staying at the forefront of technology. From participating in, and winning, hackathons to showcase their ability to implement almost any piece of code. To contributing in open source software for anyone in the world to benefit from the increased functionality. They’ve shown they can do it all.
Pablo Peillard
Founder, Hashing Systems
Enjoyed working with the Rejolut team. Professional and with a sound understanding of smart contracts and blockchain. Easy to work with and I highly recommend the team for future projects. Kudos!
Founder, 200eth
They have great problem-solving skills. The best part is they very well understand the business fundamentals and at the same time are apt with domain knowledge.
Suyash Katyayani
CTO, Purplle

Think Big, Act Now & Scale Fast

Speed up your Generative AI & Blockchain Projects with our proven frame work

We are located at

We are located at