Our Experience Creating Blockchain Apps
At Topflight, were developing a cryptocurrency app in the DeFi space that will compete with solutions like Celsius or Gemini, where users will be able to easily buy crypto with a credit card.
Were also working on launching a decentralized auctioning platform that will work as a hub for small businesses to team up and consolidate their supply purchasing power to compete with large chains like Krogers.
Reach out today if youre planning a decentralized marketplace, healthcare, or fintech application.
For Those Who Are Completely New To Programming And Development
If youre someone who wants to become a Blockchain developer but has no related skills or experience to build a foundation on, then frankly, the road is going to be a little tougher for you and will require more work and dedication.
Fortunately, there is hope! Here are some steps that anyone coming from such a place, but yet is interested in a Blockchain developer career can take.
How To Build A Web App Using Blockchain Part 1
When i started to develop a Web application using Waves Protocol, i was a bit lost, Blockchain was new to me and it was hard to find examples from a Front End Web Developer point of view. In this serie, we will develop a complete Web App from scratch.
j) Create the Smart Contract k) Deploy the Smart Contractl) Conclustion
In this article series i want to show you that despite the possible complexity of the overall Blockchain technology, developping a web application using Blockchain is still quite accessible for a front end web developer. Of course it helps to understand in details every aspects of Blockchain but it is not necessary needed to start building.
Simply imagine things like this:Webapp > API > Middleware > Database
Thats it, Webapp is your regular web interface, API will be offered and accessible via the public Node , the Smart Contract will act as a middleware and the data storage of the blockchain will be your database.
If you know how to use an API and install libraries, then all you needs to learn is RIDE and its really easy, especially in most projects, the Smart Contract often only represent a small piece of the work, everything else will be what you know already eg. the HTML / CSS, Routing, API calls etc.
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Seeking Help Of Blockchain Experts
If you dont have much time to study the process of blockchain games development, you can always use expert support. For example, the 4IRE team can always help you with answering your questions. Its blockchain consulting service delivers blockchain products and solutions for various businesses and industries, including gaming. The teams 10+ years of expertise allows it to provide professional, competent, and efficient blockchain consulting regarding the integration of blockchain technologies.
How Does One Become A Blockchain Developer
So, after all of that, the questions present itself: with all of these responsibilities, how does one train someone with the necessary skills to let them rise to the challenge of Blockchain development? There are two different situations at work here. There are the Blockchain hopefuls who are starting completely from scratch, having no background in programming whatsoever, and those who have experience in careers that share similarities with Blockchain.
FREE Course: Blockchain Developer
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Classify A Suitable Use
Upcoming developers have to be qualified and capable of understanding blockchain technology because this technology will change the way of transactions that are done in the next decade. So before you involve in the blockchain you must identify a use-case that makes business sense.
There are 3 things that blockchains can work very well:
- Info Authentication & Verification
- Smart Asset Management
- Smart Contracts
Info Authentication & Verification: It includes immutable storage, digital signatures, and encryption. Data or Info in almost any format which can be stored in the blockchain network. Blockchains can build a public-private key pair and also be used for developing and verifying digital signatures.
Smart Asset Management: It includes issuance, payment, exchange, escrow, and retirement. A smart/crypto asset is the tokenized version of a real-world asset e.g. gold, silver, oil, land.
Smart Contracts: Smart contract functionality is used in blockchain technology to execute an agreement digitally and reduce the risk of loss.
What Is The Blockchain Fork
Forking an existing Blockchain or Clone popular blockchain platforms:
The way of developing a blockchain-based application is to develop it using a popular existing blockchain platform. These blockchain platforms are open-source, so you can fork their repositories and deploy the code on your own servers.
Few popular platforms are Ethereum, Hyperledger Fabric, and Hyperledger Sawtooth. Each one has certain characteristics that can help you make the decision.
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Create A Blockchain Game From Scratch
Of course, there is always an option to build blockchain game from scratch, but this work is challenging and may take much time. First, you need to build a competent team of game developers who know how to make blockchain games. Then, it is vital to create an account on one of the blockchain platforms . After installing the necessary tools and reviewing the smart contracts of competitors, the team should code new smart contracts. After careful testing, the game can be presented to the public.
Companies Hiring Blockchain Developers
The best way to become a blockchain developer is to work on real projects. Thats why we recommend you to check out companies that are hiring blockchain developers.
There is a massive demand for blockchain developers, and if you know your craft well, you are bound to get a good start.
A good starting point is to join a programmers community and always be on the lookout for an opportunity. You can join communities like Reddit, GitHub, and StackExchange.
So, what do you think about blockchain developers? Do you still want to become one? Comment below and let us know.
Want to follow more interesting blockchain-related content? Then check out our where we provide updates about the latest tips, tricks, and industry news
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What Is Sdk And How Does It Relate To An Api
A Software Development Kit is a bundle of software development tools, such as a programming language compiler, an in-built database development environment, and an API, integrated into one installable software package.
An SDK provides an integrated development environment to create complete software solutions. It is the programmers Swiss Knife that helps cut down on the development effort significantly by providing all the necessary tools in one package. SDKs commonly, but not necessarily, include one or more APIs.
How Do Blockchain Sdks Work
Blockchain SDKs are software bundles used to develop blockchain platforms, apps on these platforms, or some advanced blockchain functionality. Unlike some APIs, SDKs are hardly suitable for use by non-programmer audiences. In order to properly install and use an SDK, you must have sufficient programming skills.
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When To Use Blockchain For Your Startup Or Existing Platform
Following are some of the questions that will help you determine if integrating blockchain into your existing solution is a good idea:
Do you want to store data?
You dont need a database if your business solution does not require a lot of data to be stored. Therefore, blockchain is of no use in that case. If you have an application that needs to manage massive data, blockchain can be used to manage a single shared distributed ledger. Instead of maintaining multiple databases, blockchain technology will allow you to have a single transparent view of the updated ledger, shared with all network nodes.
Is the data dynamic with an auditable history?
Though paper-based documents are difficult to counterfeit, they have limited permanence. If transactions need to be updated and shared frequently, maintaining them on papers can be a time-consuming process. If the data and its history are crucial for your business, you might require a blockchain solution that allows multiple parties to write entries into an incorruptible system.
Is the speed of the transaction vital for you?
Does your database need high-performance millisecond transactions? If yes, you should stick to the centralized system for managing the records. On the other hand, even though blockchain databases are slow, they are far more secure than the centralized system. If an applications security is more important than its speed, you should look for a blockchain solution.
Should a central authority control your data?
S To Build A Blockchain Solution
When Blockchain technology was announced through the paper titled Bitcoin: A Peer-to-Peer Electronic Cash System by Satoshi Nakamoto in 2008, it was an innovative mix of public key cryptography , cryptographic hash functions and proof-of-work .
Over the last few years, many derivate and blockchain-inspired projects have been created. Most of them are not technically blockchains, but rather distributed ledger systems.
Let us dcode the how to build a blockchain in just eight steps. For simplicity, I have used the terms blockchain and distributed ledger system interchangeably in this article.
Step 1: Identify a Suitable Use-case
Theres a ton of hype around blockchain. Ive read that blockchains can erase global hunger, make the world corruption-free, end poverty and do a lot more without breaking a sweat. Unfortunately, thats not true. So, step 1 is to identify a use-case that makes business sense.
There are 3 things that blockchains can do very well:
Step 3: Identify the Most Suitable Platform
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Who Is A Blockchain Developer
A blockchain developer has the knowledge and skill-set to develop and optimize decentralized applications or dApps and smart contracts based on blockchain as well as blockchain architecture and protocols. They also deal with 3D modeling, 3D design, 3D content development such as that happens in game development.
The developers have certain specializations based on skills and interests and according to the nature of work.
How To Become A Certified Blockchain Developer Or Engineer
#1) Understand the blockchain basics. Either learn on your own or join a course in an institution or online tutorial platform.
Learn blockchain including decentralization, consensus mechanisms, hashing functions, mining, security, and cryptocurrencies, as well as the blockchain development tools. Learn blockchain components such as blocks, block index, timestamp, block hash, block time, etc.
#2) Learn hands-on and interact with the system
#3) Get coding and earn certification. Either join a coding school or course at an institution or university or learn on your own, for instance, through online paid and free courses.
Further reading => > Best Blockchain Certification And Training Courses
You can start learning to code from scratch or advance your coding career to specialize in the blockchain.
You must also learn to do code analysis.
#5) Learn and develop a smart contract, earn certification, and use it
Learn the deterministic, terminable, and isolated nature of smart contracts, and develop them.
#6) Join a blockchain developer practice, hackathon, or company internship.
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What Is Rest Api
APIs use various software styles to enable their functionality. Representational State Transfer is the most popular API style. When using a REST-based API, you request data by providing a Uniform Resource Identifier , a sequence of characters that uniquely identifies a web-based resource, e.g., a data file, a document, or a web page.
REST locates the requested resource on the web and typically returns it in JSON or XML format. These formats are human-readable and are mainly used to represent some structured data, e.g., a list of cryptocurrencysymbols with their current price values.
Blockchain App Market Overview
The market for blockchain applications is far from saturated: the majority of mobile users still dont use blockchains and only have a vague idea of what they are. This follows the trend of every major new technology and after a few years, people cant imagine the world without it.
The same is likely to happen to the blockchain: its benefits wont remain unnoticed. Many companies already try to build a blockchain application for their benefit and integrate it with their existing system.
According to stateofthedapps.com, there are currently over 2,600 active DApps on the market with around 37,000 daily users. This doesnt seem like very many however, that only means theres great potential. In December 2018, 117 new DApps appeared. The number of blockchain mobile apps is growing rapidly.
The overall blockchain market is also growing: according to YourTechDiet, the blockchain market will be worth $60 billion by 2020, with finance having the largest share at 60%.
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Examples Of Blockchain Technology In Practice
Here are some most interesting examples of using blockchain in different industries. You can use them as ideas for blockchain apps.
Spotify uses blockchain database for decentralized connection between Spotify tracks, artists and licencing agreements.
Warranteer is a retail company that uses blockchain to help customers access information on the products they bought, and get service in case the product stopped working.
IBM Blockchain one of the best best blockchain apps that helps logistics companies and businesses with long supply chains to track the status and condition of every product on each stage of the supply process: from the start of production to the distribution stage. Blockchain provides full transparency of records, and offers real-time tracking of all parts in terms of their location and condition.
MedRec a healthcare example of blockchain app that provides secure access to medical records across different providers and actors, like doctors, patients, hospitals, pharmacies and insurance companies.
Securrency is a trading platform for any kinds of cryptocurrencies, however, it also supports traditional assets that can be translated into Securrency tokens and exchange as well.
Blockchain For Developers By Lighthouse Labs
This course is most suitable for beginner developers with beginner to intermediate coding skills. You learn to code and become a professional blockchain developer. During this course, you spend 75% of your time coding applications on the blockchain.
- Part-time and accelerated learning. Learn through in-person lectures, guest speakers, hands-on tutorials, hands-on projects.
Duration: 12 weeks part-time.
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Big Companies Are Investing In Blockchain
Big companies like Amazon, Google, Starbucks, Walmart, and Facebook are all taking Blockchain very seriously.
Google’s Big Query service supports Ethereum smart contract analytics. This platform allows you to analyze Ethereum transactions you can look at smart contracts and others.
Amazon has their managed Blockchain service on AWS. On June 1st, 2020 Amazon announced they are looking for a patent in Blockchain for a supply chain.
Facebook also has its libra Blockchain, though they are facing some hurdles with the regulatory bodies, they are working hard to launch their own cryptocurrency.
Walmart also has its distributed letter technology, which they are also working on it’s undergoing research with the supply chain.
I have personally been to presentations where Starbucks showed a proof of concept for supply chain solutions within their business.
All these big companies are taking Blockchain seriously. They can’t afford to ignore blockchain!
Build The Backbone Of Your Dapp
I bet you know that every app consists of more than a consumer-facing front-end part and also leans on a back end databases, servers, business logic, well, everything that keeps the front end running.
Dapps are no different in that respect, except they tend to have two back ends. One back end is blockchain-based, consisting mainly of smart contracts. And the other one is similar to back ends you find in regular apps a web server exchanging and processing data.
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C Start A New Project
To get the code of the step 1 .To get the code of the full web app .
Keep in mind that this project is open source and available for anyone to use but the main goal when i built it was education.
I limitate the use of libraries/tools like Typescript, Sass, Waves Transactions, Surfboard as well as framework like React or Vue . I also limitate the code splitting in several files or anything that would over complexify the structure because the goal is to keep it accessible to any front end developer level as well as helping understand as much as possible what really happends.I heavily commented the code on that purpose. This project can most certainly be improved.
In this tutorial, im going to build the webapp using the following technology and libraries:
For the webapp :
- NodeJS and ExpressJS for the routing & architecture
- Webpack & Babel to allow us working with es6
- Nodemon to simplify the process
- HTML / CSS and Bootstrap for the views
- Waves Signer for the signature of transactions
- Jquery, DataTables and CanvasJs for data display and graph
- Sanitize-html to sanitize the data we receive from data storage