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Ethereum Development Tools

11 Best Ethereum Development Tools To Grow Yourstack

11 Best Ethereum Development Tools To Grow Yourstack

CTO of blockchain startups Dispatch Labs, and @HappyChainAPI Organizer of SF Ethereum Meetup DJ/Producer/Model All my social medias: @ZaneWithSpoon 11 Best Ethereum Development Tools to Grow YourStack Blockchain tech is getting chief officers hot and heavy. When its your turn to show them your stack, will you distress or impress? Heres 11 tools for building on the Ethereum blockchain The foxy doggo chrome extension is goodboy 1. Mist nothing gets them going like pulling out yourwallet Use Mist to create wallets you wont lose right when your Uber is pullingup Store Ether, send transactions, deploy contracts and more with Mist. You can use the native application to play around on the blockchain or testnet while you get the hang of this whole blockchain thing. Super useful for quick transactions. When youre ready to ditch the training wheels, switching to the command line will make you look like a real hacker . Geth can do anything Mist can do plus some important functionality like serving as an RPC endpoint to connect to the blockchain over http. 3. Parity promote your side client tobae Parity is an ethereum client written in the new low level language Rust. Formed by Dr. Gavin Wood, the former CTO of Ethereum, this client is a fast, lightweight way to run an Ethereum node. Run Parity and hop over to localhost:8080 to play around in their web UI. Honestly, its a pain in the ass to install, but once its up and running Parity is a big upgrade from Geth. 4. MetaMask furry fun keeps chrome interesting The foxy doggo chrome extension is goodboy MetaMask is If youre building a app you actually want people to use. MetaMask support is a must-have. This little chrome extension drastically improves how easily people can interact with your app (distributed app). If you havent alrea Continue reading >>

Dapps Ethereum Homestead 0.1 Documentation

Dapps Ethereum Homestead 0.1 Documentation

Swarm is a distributed storage platform and content distribution service, a native base layer service of the Ethereum web 3 stack. The primary objective of Swarm is to provide a sufficiently decentralized and redundant store of Ethereums public record, in particular to store and distribute dapp code and data as well as block chain data. From an economic point of view, it allows participants to efficiently pool their storage and bandwidth resources in order to provide the aforementioned services to all participants. From the end users perspective, Swarm is not that different from WWW, except that uploads are not to a specific server. The objective is to peer-to-peer storage and serving solution that is DDOS-resistant, zero-downtime, fault-tolerant and censorship-resistant as well as self-sustaining due to a built-in incentive system which uses peer to peer accounting and allows trading resources for payment. Swarm is designed to deeply integrate with the devp2p multiprotocol network layer of Ethereum as well as with the Ethereum blockchain for domain name resolution, service payments and content availability insurance. Continue reading >>

The Best Blockchain Developer Tools

The Best Blockchain Developer Tools

As I recently write on this article , you should bet on bitcoin if you want to find a high paying job because being a blockchain developer might be your game changer.Blockchain developers are a real unicorn right now because a lot of companies and startups are looking for this expertise, but only a few people in the world work in this field. That said, I want to show you the best blockchain developer tools you should consider if you have already started to work in this environment or if you are a newbie.People in the community argue that the blockchain will disrupt any industry, just like what happened with the Internet back in the 90s. But, how can it be used to build the so-called dapps (decentralized applications)? The blockchain is not only a network for transactions and store of value, but it can also execute programs. Some blockchains are able to contain programs, called smart contracts, as in the case of the Ethereum chain.A smart contract can be defined as a promise that signing parties agree on specific terms written on the contract itself. For example, if you want to rent an apartment, the loaner might ask you to pay a deposit before you move. Instead of relying on notaries and banks, you can both write and sign a smart contract setting out the terms of the let and the related deposit. In the event that some of the terms arent respected, the money would be returned to the legitimate owner without the need for any intervention by lawyers. In fact, smart contracts allow you to avoid any intervention by banks, lawyers, and any court. Just write a program that defines how much money should be transferred in response in order to meet specific conditions. The blockchains can potentially eliminate all the intermediaries needed in order to build trust. To do so, of c Continue reading >>

Tools And Technologies In The Ethereum Ecosystem

Tools And Technologies In The Ethereum Ecosystem

Techie, Foodie, Traveler, Tinkering with Blockchain at www.zastrin.com Tools and Technologies in the Ethereum Ecosystem If you are a developer new to Ethereum/blockchain, it is possible you are overwhelmed (at least I was) trying to understand all the tools and technologies in the Ethereum ecosystem. So I decided to briefly describe the various components you come across frequently while starting to learn Ethereum. Hopefully this will help you get a big picture of the Ethereum ecosystem and how all the pieces fit together. Ethereum is a smart contract blockchain on which you can build decentralized applications (called smart contracts). If you are a technologist, this white paper is worth reading: . If you have built web applications before, I wrote a post comparing Ethereum blockchain and web application architecture which might help understand Ethereum at a high level. Geth is the official client software provided by the Ethereum Foundation . It is written in the Go programming language. This software packages a few components which is worth understanding: When you start this client daemon, it connects to other clients (also called nodes) in the network and downloads a copy of the blockchain. It will constantly communicate with other nodes to keep its copy of the blockchain up to date. It also has the ability to mine blocks and add transactions to the blockchain, validate the transactions in the block and also execute the transactions. It also acts as a server by exposing APIs you can interact with through RPC. This is a command line tool which lets you connect to your running node and perform various actions like create and manage accounts, query the blockchain, sign and submit transactions to the blockchain and so on. This is a desktop application used to communica Continue reading >>

5 Awesome Tools For Ethereum Development!

5 Awesome Tools For Ethereum Development!

Tutorials and jobs for Ethereum enthusiasts. Smart contract development is still in its early stages! The tools you can use to build, monitor and visualize your smart contracts evolves every day and we picked for you the 5 tools you should keep an eye on. Simple access to the blockchain through the browser! MetaMask is a browser extension available for Chrome, Firefox and Opera that allows anyone to interact with the Ethereum blockchain in a simple way! From MetaMask, you can access or create a new Ethereum address, easily send transfers to other address and sign transactions to interact with Ethereum decentralized applications (DApps). Enabling users to access and play with the blockchain in one click is awesome and MetaMask allows developers to build awesome applications like CryptoKitties, EtherDelta that rocks the blockchain! Scalable and safe Ethereum nodes available for developers. When starting with blockchain development, something that can be a deal breaker is getting the Blockchain on your device! Thanks to Infura , you can access any data you would normally access through the web3.js tool through their API. infura provides to anyone, free of charge a set of nodes you can query to get block informations, transaction receipts and events. On their website they tell they handle more than 5 billions requests per day and more than 9 thousand developers. To use Infura , you need an API key that you can get by registering on their website. You should not that some operations are not permitted as they may be too costly for them to handle. Such as new blocks and event listening. Remix is a web interface that helps you to write, deploy and interact with your smart contracts. It is available here but can also be self hosted as the project is open source . The interface Continue reading >>

Install The Command Line Tools

Install The Command Line Tools

Command line tools for the Ethereum Network These are tools for blockchain developers. The command line tools will allow you to connect your server to or run your application on the Ethereum blockchain or your own private blockchain. For security purposes , three independent implementations were created for Ethereum. The clients have almost identical functionality, so the one you pick is left to personal choice on platform, language and what your planned use is for the network. If you are building a business that needs to have maximum uptime guarantees to the Ethereum network, we recommend that you run at least one instance of both clients to ensure reliability. The Go implementation is called Geth. Geth has been audited for security and will be the future basis for the enduser-facing Mist Browser, so if you have experience with web development and are interested in building frontends for dapps, you should experiment with Geth. Install Homebrew and make sure it's up to date: Then use these commands to install ethereum: brew tap ethereum/ethereumbrew install ethereum For more, see the full documentation on Mac OSX Geth Download the latest stable binary , extract it, download the zip file, extract geth.exe from zip, open a command terminal and type: chdir open geth.exe For more, see the full documentation on Windows Geth sudo apt-get install software-properties-commonsudo add-apt-repository -y ppa:ethereum/ethereumsudo apt-get updatesudo apt-get install ethereum For other environments and more instruction, see the full documentation on Geth The C++ implementation is simply called Eth. If you want added security by running two different implementations in parallel or are serious about GPU mining, then the C++ "Eth" client is for you. Install Homebrew and then make sure it Continue reading >>

Getting Started With Ethereum Development

Getting Started With Ethereum Development

Getting Started With Ethereum Development Ethereum is gaining more and more popularity proving that the future of the Internet can be partially or completely decentralised. Why not jump right in and discover the capabilities of Ethereum development today? As every new beginning requires some guidance, heres the path to get some solid foundations as Ethereum developer. By the end of it, you will able to create your own decentralised apps and share your own ideas with the blockchain world. So are you still considering if learning Ethereum development is worth it? It has all the potential to be the next big thing and the true technology of the future . Speaking of which, it is already being used in real-life. Supposedly, even if not Ethereum itself, the concept of global decentralised blockchain-based technologies will most probably change the way we use the Internet in the near future, and currently, Ethereum is the most promising one. If you havent done that already, take a look at our previous blog post about what Ethereum is and what makes it so awesome. Youre probably wondering what is the best way to start learning development in Ethereum. As for today, that is not an easy question considering the whole Ethereum stack is still in its early phase and constantly evolving at a significant pace. Most of the articles and guides on Ethereum published on the Internet are more or less obsolete so it takes some effort to finally find the one that is relatively up-to-date and help you to jump in blockchain development. With that in mind, I think that the best way to start is the official Ethereum tutorial which guides you step by step in creating your own digital currency on the Ethereum network. The good thing for beginners is that it wont let you worry about manually compil Continue reading >>

Dapps 101: How Do I Start Developing On Ethereum?

Dapps 101: How Do I Start Developing On Ethereum?

Starting a new adventure @ElektraLabs. Formerly at @AkiliLabs, @codeHBS, @KKR_Co, and @McKinsey. Digital Rights Advocate. @NeuroTechX writer. #nonsibi Dapps 101: How do I start developing on Ethereum? Note: I drafted this piece in early 2017 pre-ICO craze. Theres been a lot of great advancements and tools to play with since then. Check out this Hacker News chain for more resources . If youre just starting with Ethereum, check out Fred Ehrsam s Ethereum is the Forefront of Digital Currency (May 2017) and Linda Xie s A Beginners Guide , both of which were published earlier this year. Lets say you want to dive in, get your hands dirty, and play around with the protocol and smart contracts where to start? When I was first diving in, I met with Ryan , co-founder of Dapphub Chat and Nexus , blockchain R&D firm specializing in the Ethereum technology stack, and he shared a few starting points. It was a goldmine. Although Im still working through the resources, I realized Im not the only person thinking about how to get started so wanted to share it with the broader community. Where to start: A 101 Noob Intro to Programming Smart Contracts on Ethereum by ConsenSys , a blockchain venture production studio building decentralized applications on Ethereum. Afterwards, I navigated over to the Ethereum Foundation, a Swiss nonprofit, which created a Greeter App , where you can build your first smart contract in the command line. While going through this, I realized I wanted more context before starting, which is when I reached out to Ryan. Heres some of his tips: dApps for Beginners . A wordpress site self described as the temporary home of learning materials relating to development on Ethereum. Coming soon: EthAcademy , which will be Ethereums official site for learning to build on Continue reading >>

A Prologue To Ethereum Development

A Prologue To Ethereum Development

I got my first computer in 1996. It was an old HP that my grandmother used to do taxes on. It didnt have a hard drive and used 5 floppy disks that still flopped. You had to use DOS to load the program from the disk, and the only programs I had for it were the Wheel Of Fortune and Jeopardy! games. It didnt matter I was hooked. From there, I started digging through the trash for old computer parts to keep upgrading the hand-me-downs I would get from Nana every few tax seasons. When I joined the Navy in 2008, I learned simple things, like how basic electrical circuits composed logic gates, or how combining those gates could form computational and storage circuits. I was taught how to troubleshoot on a Motorola 6800, the processor from my first video game console, a Nintendo Entertainment System. All I wanted was to learn more. While I was on my ship, I became the IT administrator for the local network. After learning that, I started to ask questions about the software side. How do I code? I wouldnt find the answer until my passion for blockchain was ignited. I was still new to the Navy during the bailout and government shutdown, so I didnt feel the sting as hard as those outside. After I got out years later, I found out more about printing money and inflation, and was appalled at what I had learned. At first I considered politics maybe I could change things from the inside but my service with the Navy reminded me of the crushing weight of bureaucracy. I came to the conclusion that big ideas and change come from the outside. This big idea was discovered in a conversation, and it was named Bitcoin. The properties of this system astounded me! You can code the rules of the system at the time of creation, and it can not be altered after that. The cryptographic nature made it s Continue reading >>

Ethereum Development Tools An Evaluation Matrix

Ethereum Development Tools An Evaluation Matrix

User can edit Solidity content in a text editor, there should be at least syntax highlighting. User can edit JavaScript, HTML and CSS in a text editor and gets different levels of support like syntax highlighting, code completion, etc. User can not only edit code (Solidity and JavaScript), but can also compile, check into a versioning system, debug and deploy to some operating environment. Versioning is supported, eg. by enabling the user to check edited content into a versioning system, show diffs,apply patches, etc. Modification of code by multiple users is supported, at minimum support of different versions of the code is possible to avoid conflicts. Working code can be deployed to some environment which enables the user and other users to use the working program (a sandbox or real blockchain and a web application server for JavaScript like node.js and static content like HTML and CSS files) We will summarize in short the different aspects which are supported in these development environment: Solidity Browser / Ethereum Wallet, Truffle and Ethereum Studio . This is also a teaser for the upcoming blog posts, which will explain the environments in detail. In terms of architectural styles, both environments represent minimalism. They are slim and handy, easy to use and fast to learn, but lack some functionality if real development in the large is necessary. Solidity Browser, only Solidity Development, no Environment, ie. not even save of file is possible Ethereum Wallet (Mist), only Solidity Environment, no save of file possible, but integrated compiler Truffle satisfies all aspects which a usual client application can offer, therefore you can think of Gothik, it is mighty, almost lavish, and well structured. If you come from web development in JavaScript with node.js, Continue reading >>

Ethereum Development Tutorial

Ethereum Development Tutorial

The purpose of this page is to serve as an introduction to the basics of Ethereum that you will need to understand from a development standpoint, in order to produce contracts and decentralized applications. For a general introduction to Ethereum, see the white paper , and for a full technical spec see the yellow papers, although those are not prerequisites for this page; that is to say, this page is meant as an alternative introduction to Ethereum specifically targeted towards application developers. Ethereum is a platform that is intended to allow people to easily write decentralized applications (apps) using blockchain technology. A decentralized application is an application which serves some specific purpose to its users, but which has the important property that the application itself does not depend on any specific party existing. Rather than serving as a front-end for selling or providing a specific party's services, a app is a tool for people and organizations on different sides of an interaction used to come together without any centralized intermediary. Even necessary "intermediary" functions that are typically the domain of centralized providers, such as filtering, identity management, escrow and dispute resolution, are either handled directly by the network or left open for anyone to participate, using tools like internal token systems and reputation systems to ensure that users get access to high-quality services. Early examples of apps include BitTorrent for file sharing and Bitcoin for currency. Ethereum takes the primary developments used by BitTorrent and Bitcoin, the peer to peer network and the blockchain, and generalizes them in order to allow developers to use these technologies for any purpose. The Ethereum blockchain can be alternately described Continue reading >>

Use Our Suite Of Ethereum Security Tools

Use Our Suite Of Ethereum Security Tools

Two years ago, when we began taking on blockchain security engagements, there were no tools engineered for the work. No static analyzers, fuzzers, or reverse engineering tools for Ethereum. So, we invested significant time and expertise to create what we needed, adapt what we already had, and refine the work continuously over dozens of audits. Weve filled every gap in the process of creating secure blockchain software. Today, were happy to share most of these tools in the spirit of helping to secure Ethereums foundation. Think of what follows as the roadmap. If you are new to blockchain security, just start at the top. You have all you need. And, if youre diligent, less reason to worry about succumbing to an attack. To build a secure Ethereum codebase: get familiar with known mistakes to avoid, run a static analysis on every new checkin of code, fuzz new features, and verify your final product with symbolic execution. This repository contains examples of common Ethereum smart contract vulnerabilities, including real code. Review this list to ensure youre well acquainted with possible issues. The repository contains a subdirectory for each class of vulnerability, such as integer overflow , reentrancy , and unprotected functions . Each subdirectory contains its own readme and real-world examples of vulnerable contracts. Where appropriate, contracts that exploit the vulnerabilities are also provided. We use these examples as test cases for our Ethereum bug-finding tools, listed below. The issues in this repository can be used to measure the effectiveness of other tools you develop or use. If you are a smart contract developer, carefully examine the vulnerable code in this repository to fully understand each issue before writing your own contracts. Slither combines a set o Continue reading >>

Setting Up Your Development Environment

Setting Up Your Development Environment

Building on Ethereum has been designed to be extremely easy for web designers to learn with the languages being familiar enough for anyone with knowledge of JavaScript to pick up very quickly. We have three pieces of software that every developer should download Alethzero, Mist and Mix. Alethzero is a full GUI Client with advanced features like private chains, force mining and full webkit suite. Mist is the Dapp browser and mining client which users will access your Dapps in. Finally, Mix is a fully integrated development environment purposely designed to build and debug contracts and their corresponding front ends. Getting your development environment setup should be fairly simple for anyone who has designed a web page before we have three pieces of specialized software that you will need to download: Firstly, download the latest stable binary of Alethzero, our C++ client, and install on your chosen operating system. If you experience problems with the stable build then you may wish to switch to the latest cutting edge version, which may ameliorate some of your issues. If you choose instead to build your own then build instructions are here. Secondly, Install MIX our integrated development environment available for Windows and Mac here. If you are using Linux follow the instructions here to install mix also. Finally, make sure you install Mist to test your Dapps and fine-tune your front-ends as you develop them. A text editor or Mix can be used for creating the backend contract code which we are going to write, for serpent I suggest you set your editor to treat serpent contracts saved with the .se suffix as python syntax and for solidity you should save your files with a .sol suffix. A live refresh solution is *not* recommended when working on your html front-end, as Continue reading >>

Dapp.tools

Dapp.tools

Command-line-friendly tools for blockchain development We believe that the free software movement is the most important cultural predecessor to the modern-day renaissance in decentralized technologies. To catalyze the growth of this ecosystem, and to empower hackers to participate, were building a comprehensive suite of blockchain-oriented developer tools in the spirit of the Unix philosophy. Dapp is all you need to start developing for Ethereum. It creates new dapps, runs Solidity unit tests, debugs, deploys, launches testnets, and more. Seth is a handy tool for slicing and dicing transactions, querying the blockchain, converting between data formats, performing remote calls, and other everyday tasks. Hevm is our own EVM implementation with a nimble terminal-based Solidity debugger. Its used for dapp test and dapp debug. Evmdis is an EVM disassembler written and maintained by Nick Johnson . Its useful to make sense of EVM bytecode, especially when developing contracts at the assembly or raw bytecode level. We recommend using the Nix package manager. It works on Linux and OS X and is self-contained and unobtrusive. $ curl | sh$ nix-channel --add nix-channel --update$ nix-env -iA dapphub.{ dapp , seth , hevm , evmdis } Our post Dapp tools and the Nix package manager explains what makes Nix special and why we chose it for our tools. Quick intro to working with the dapp tools You can get started with dapp development very easily: $ mkdir example$ cd example$ dapp init$ vi src/example.sol$ dapp test$ dapp debug For details about the dapp command, see dapp.tools/dapp . We build infrastructure for the next generation of the internet DappHub is a self-organizing network of logicians, researchers, designers and developers spread out across the globe. Our network is always grow Continue reading >>

A Gentle Introduction To Ethereum Programming, Part3

A Gentle Introduction To Ethereum Programming, Part3

Developer, security researcher, musician & chef at Zeppelin A Gentle Introduction to Ethereum Programming, Part3 This is the third part of our Ethereum introduction guide. If you havent read parts 1 and 2 , I highly recommend them to better understand this post. Enjoy, and please do not hesitate to reach out with questions, corrections or feedback. 4. A real DApp, a token marketplace coming soon As you may have noticed, most of the work that weve been doing was pretty manual. Although this is a young industry, there are some tools that will make development easier. Lets see some of them. Until now, the only way we used to interact with our contracts was to deploy them manually through a Node console into a testrpc node and then load them using Web3. Now, let me introduce Truffle to you. It is an Ethereum development framework that will help us debugging, deploying, and testing smart contracts, among other things. The first thing were going to do is to deploy a contract using Truffle. Let's create a new directory for this exercise and run the following commands to install Truffle and initialize our project: The contracts folder is where the smart contracts should be. The migrations folder will host javascript files that will help us deploying our contracts to the network. You may also have seen a Migrations contract in the first folder, this is where the history of our migrations is going to be stored on-chain. The test folder is initially empty and is intended to keep our test files. Finally, you will see a truffle.js and a truffle-config.js files. We will skip them by now, but you can read more in their documentation . Now, lets leave that boring stuff behind and focus on the interesting parts. To see an example of how we can deploy a contract using Truffle, we can us Continue reading >>

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