Blockchain technology is very futuristic. It is not farfetched to think of a future which will be built around it. Blockchain started off as a public permissionless technology, later, another type of blockchain introduced, each for its own specific set of use cases. Public/Permissionless blockchains are open, decentralized and slow whereas Private/ Permissioned blockchains are closed and centralized, either partially or completely. Blockchain technology is also more effective to modernize business processes.
Here I am going to discuss, what you need to learn in order to start building apps that use blockchain technology. When I started learning Blockchain, a lot of questions popped into my head. What are the different types of blockchain programming, which programming languages I should know to programme efficiently and what are the platforms for blockchain coding?
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In this article, I’ll be discussing the different programming languages you could learn to start up developing apps that use blockchain technology.
Below is the list of topics that you will find in this blog:
- Types of Blockchain Programming
- Popular Blockchain Programming Platforms
- Top 5 Blockchain Programming Languages
Types of Blockchain Programming
- Blockchain Architecture Programming
Before a blockchain can be released, important features that comprise its architecture and protocols must be settle. This must be written in code. For example, before the bitcoin blockchain was released back in 2009, the rules and regulations governing that situation were coded in c++. This kind of coding is generally done using languages like c and java which work closer to the machine.
- Building a smart contract, or decentralized app (DApp)
In a normal centralized application, the backend code is running on centralized servers, whereas, a Dapp has its backend code running on a decentralized peer-to-peer network. Like an app, a DApp can have its frontend code written in any language and user interfaces that can make calls to the backend.
Popular Blockchain Programming Platforms
Ethereum is an open source blockchain platform for developing decentralized apps or DApps that run on blockchain technology. Ethereum blockchain platform facilitates scripting or smart contracts which are run through the nodes in the network. It just does not track transaction but also programs them. Ethereum offers numerous programming choices, C++, Go, Python, Java and more. Smart contracts are built using Solidity, a contract-oriented, high-level programming language.
Top 5 Blockchain Programming Languages
Let’s kick start with the oldest and most admired language on the list, the evergreen C++. Almost all of us know that it is an extension of the C language. In C++, a package of data, functions, and objects are created which can easily be called and reused in other programs greatly reducing coding time.
But there are many advanced languages now, so why C++?
Well, C++ has certain features that make it very appealing. Thinking about the challenges in blockchain development, blockchain should be like a secured fortress that also has effective resource management. A blockchain is supposed to interact with a lot of untrusted nodes while still giving quick service to any and all of them. This prompt service is very critical for the success of a cryptocurrency. To compete for all these demands and perform at the highest level, you need complete control over CPU and memory usage. C++ gives this to its users.
Another interesting aspect of C++ is move semantics. Move semantics provides a way to move the contents between objects rather than be copied. The advantage of move semantics is that you can get copies of certain data only when you need them, giving a huge performance boost by decreasing code redundancy. Hence, efficient memory management and high performance are both desirable for blockchain.
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Another challenge I can think of with regards to blockchain programming is the integration of tasks that parallelize well and the tasks that don’t parallelize. Most languages specialize in one, however, C++’s threading ability can handle both parallel and non-parallel tasks. C++ allows multithreading facilities with effective inter-thread communication and also optimizes single-thread performance.
Pros and Cons of C++:
AdvantagesDisadvantagesIndependent and Multiplatformcomplex and often difficult to debugStatically typesNot very easy to learnHigh Speedgarbage collection not supported
C++ is mostly used in cryptocurrencies and important blockchain projects like Bitcoin, Ripple, Bitcoin cash, Litecoin, Stellar, Monero.
AdvantagesDisadvantagesObject-orientedDynamicPrototype-basedinterpretation depends on the browserSupports functional programminganyone can view code
A relatively-modern programming language, Python is often the favorite for new coders as it has a simple syntax similar to the English language. Python code can be used on a server to create web-based applications. It is also used to connect to database systems. It can handle big data and perform complex mathematics. The most appealing aspect of Python is that it uses new lines to complete a command, as opposed to other programming languages which often use semicolons or parentheses.
Whatever you try, you cannot leave Python out of this list as almost every single blockchain ecosystem has one or more public tools written in Python. Python is becoming a more popular language than it was ever before.
Pros and Cons of Python:
AdvantagesDisadvantagesWorks on different platforms (Windows, Mac, Linux, Raspberry, others)Mostly used as a server languageThe syntax allows developers to write programs with fewer lines compared to some other programming nftgamef.com so smart contextRuns on an interpreter system. Meaning, prototyping can be very nftgamef.comaries are not always documented in enough way
Python use cases in blockchain:
In the Blockchain arena, Python is used to write smart contracts for Hyperledger. There are many other good projects likes Ethereum(pyethereum), which has their own implementation. Python has also been used to create contracts for NEO.
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In Go, methods called Goroutines provides the ability to run several programs or several parts of a program asynchronously or in parallel, which is an important feature required for blockchain projects. Usually, Threads are used to achieve this in languages such as Java and others.
Pros and Cons of Go:
Go use cases in blockchain:
There is an endless list of Golang related projects, but here I am going to mention a few of the popular ones. Go-Ethereum is one of the most important projects written in golang. Another important project which is written in Go language is Hyperledger Fabric. It is one of the most popular blockchain solutions for big companies. An exciting project targeting decentralized online games is Loom Network which has chaincode written in go.
You can go through this Solidity video lecture where our expert having Blockchain certification is discussing each & every nitty gritty of the technology.
To try out code examples of Solidity, you could use the Remix IDE. Remix is a web Browser based IDE with integrated compiler and Solidity runtime environment without server-side components. It allows you to write Solidity code, deploy and run the smart contracts.
Pros and Cons of Solidity:
AdvantagesDisadvantagesProvides inheritance properties in contractsVery young language, the community is not big yet, so support is nftgamef.comically typedUsage is very complicated due to the unavailability of Standard LibraryEasy to learnNot universal; usable in Ethereum ecosystem only
Solidity use cases in blockchain:
Solidity language is used to develop Ethereum smart contracts. I do not see any other project using solidity, but Ethereum development ecosystem is enormous and is one of the most important parts of blockchain development as of now. And solidity is one of the most popular languages used in smart contract development
Blockchain technology is expected to have a massive impact on every sector and industry. In the coming days, as the world becomes more and more decentralized and blockchain adapted as mainstream, the future for you is definitely limitless.