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Explore all Cryptocurrency open source software, libraries, packages, source code, cloud functions and APIs.

Popular New Releases in Cryptocurrency

2.9.0

2022.3

Release 1.4.1

v0.8.4 🌈

5.7.2

vnpy

2.9.0

freqtrade

2022.3

zipline

Release 1.4.1

qlib

v0.8.4 🌈

firefly-iii

5.7.2

Popular Libraries in Cryptocurrency

ccxt

by ccxt javascript

star image 24082 MIT

A JavaScript / Python / PHP cryptocurrency trading API with support for more than 100 bitcoin/altcoin exchanges

vnpy

by vnpy python

star image 17636 MIT

基于Python的开源量化交易平台开发框架

freqtrade

by freqtrade python

star image 17102 GPL-3.0

Free, open source crypto trading bot

zipline

by quantopian python

star image 14354 Apache-2.0

Zipline, a Pythonic Algorithmic Trading Library

ethereumbook

by ethereumbook javascript

star image 10272 NOASSERTION

Mastering Ethereum, by Andreas M. Antonopoulos, Gavin Wood

gekko

by askmike javascript

star image 9676 MIT

A bitcoin trading bot written in node - https://gekko.wizb.it/

qlib

by microsoft python

star image 8313 MIT

Qlib is an AI-oriented quantitative investment platform, which aims to realize the potential, empower the research, and create the value of AI technologies in quantitative investment. With Qlib, you can easily try your ideas to create better Quant investment strategies. An increasing number of SOTA Quant research works/papers are released in Qlib.

abu

by bbfamily python

star image 8205 GPL-3.0

阿布量化交易系统(股票,期权,期货,比特币,机器学习) 基于python的开源量化交易,量化投资架构

zenbot

by DeviaVir html

star image 8155 MIT

Zenbot is a command-line cryptocurrency trading bot using Node.js and MongoDB.

ccxt

by ccxt javascript

star image 24082 MIT

A JavaScript / Python / PHP cryptocurrency trading API with support for more than 100 bitcoin/altcoin exchanges

vnpy

by vnpy python

star image 17636 MIT

基于Python的开源量化交易平台开发框架

freqtrade

by freqtrade python

star image 17102 GPL-3.0

Free, open source crypto trading bot

zipline

by quantopian python

star image 14354 Apache-2.0

Zipline, a Pythonic Algorithmic Trading Library

ethereumbook

by ethereumbook javascript

star image 10272 NOASSERTION

Mastering Ethereum, by Andreas M. Antonopoulos, Gavin Wood

gekko

by askmike javascript

star image 9676 MIT

A bitcoin trading bot written in node - https://gekko.wizb.it/

qlib

by microsoft python

star image 8313 MIT

Qlib is an AI-oriented quantitative investment platform, which aims to realize the potential, empower the research, and create the value of AI technologies in quantitative investment. With Qlib, you can easily try your ideas to create better Quant investment strategies. An increasing number of SOTA Quant research works/papers are released in Qlib.

abu

by bbfamily python

star image 8205 GPL-3.0

阿布量化交易系统(股票,期权,期货,比特币,机器学习) 基于python的开源量化交易,量化投资架构

zenbot

by DeviaVir html

star image 8155 MIT

Zenbot is a command-line cryptocurrency trading bot using Node.js and MongoDB.

Trending New libraries in Cryptocurrency

qlib

by microsoft python

star image 8313 MIT

Qlib is an AI-oriented quantitative investment platform, which aims to realize the potential, empower the research, and create the value of AI technologies in quantitative investment. With Qlib, you can easily try your ideas to create better Quant investment strategies. An increasing number of SOTA Quant research works/papers are released in Qlib.

scaffold-eth

by scaffold-eth css

star image 6612 MIT

🏗 forkable Ethereum dev stack focused on fast product iterations

binance-trading-bot

by chrisleekr javascript

star image 3098 MIT

Automated Binance trading bot - Trade multiple cryptocurrencies. Buy low/sell high with Grid Trading. Integrated with TradingView technical analysis

Binance-volatility-trading-bot

by CyberPunkMetalHead python

star image 2797 MIT

This is a fully functioning Binance trading bot that measures the volatility of every coin on Binance and places trades with the highest gaining coins If you like this project consider donating though the Brave browser to allow me to continuously improve the script.

ethereum-boilerplate

by ethereum-boilerplate javascript

star image 2329 MIT

The ultimate full-stack Ethereum Dapp Boilerplate which gives you maximum flexibility and speed. Feel free to fork and contribute. Although this repo is called "Ethereum Boilerplate" it works with any EVM system and even Solana support is coming soon! Happy BUIDL!👷‍♂️

umbrel

by getumbrel html

star image 1659 NOASSERTION

A beautiful personal server OS for Raspberry Pi or any Linux distro for running self-hosted apps

uniswap-v3-core

by Uniswap typescript

star image 1348 NOASSERTION

🦄 🦄 🦄 Core smart contracts of Uniswap v3

Binance-News-Sentiment-Bot

by CyberPunkMetalHead python

star image 1220 MIT

This is a fully functioning Binance trading bot that takes into account the news sentiment for the top 100 crypto feeds. If you like this project consider donating though the Brave browser to allow me to continuously improve the script.

evmos

by tharsis go

star image 1203 Apache-2.0

Evmos is the Ethereum Virtual Machine (EVM) Hub on the Cosmos Network. It is the flagship implementation of the Ethermint library that prioritizes interoperability and novel economics.

qlib

by microsoft python

star image 8313 MIT

Qlib is an AI-oriented quantitative investment platform, which aims to realize the potential, empower the research, and create the value of AI technologies in quantitative investment. With Qlib, you can easily try your ideas to create better Quant investment strategies. An increasing number of SOTA Quant research works/papers are released in Qlib.

scaffold-eth

by scaffold-eth css

star image 6612 MIT

🏗 forkable Ethereum dev stack focused on fast product iterations

binance-trading-bot

by chrisleekr javascript

star image 3098 MIT

Automated Binance trading bot - Trade multiple cryptocurrencies. Buy low/sell high with Grid Trading. Integrated with TradingView technical analysis

Binance-volatility-trading-bot

by CyberPunkMetalHead python

star image 2797 MIT

This is a fully functioning Binance trading bot that measures the volatility of every coin on Binance and places trades with the highest gaining coins If you like this project consider donating though the Brave browser to allow me to continuously improve the script.

ethereum-boilerplate

by ethereum-boilerplate javascript

star image 2329 MIT

The ultimate full-stack Ethereum Dapp Boilerplate which gives you maximum flexibility and speed. Feel free to fork and contribute. Although this repo is called "Ethereum Boilerplate" it works with any EVM system and even Solana support is coming soon! Happy BUIDL!👷‍♂️

umbrel

by getumbrel html

star image 1659 NOASSERTION

A beautiful personal server OS for Raspberry Pi or any Linux distro for running self-hosted apps

uniswap-v3-core

by Uniswap typescript

star image 1348 NOASSERTION

🦄 🦄 🦄 Core smart contracts of Uniswap v3

Binance-News-Sentiment-Bot

by CyberPunkMetalHead python

star image 1220 MIT

This is a fully functioning Binance trading bot that takes into account the news sentiment for the top 100 crypto feeds. If you like this project consider donating though the Brave browser to allow me to continuously improve the script.

evmos

by tharsis go

star image 1203 Apache-2.0

Evmos is the Ethereum Virtual Machine (EVM) Hub on the Cosmos Network. It is the flagship implementation of the Ethermint library that prioritizes interoperability and novel economics.

Top Authors in Cryptocurrency

1

41 Libraries

22859

2

31 Libraries

2461

3

29 Libraries

11012

4

23 Libraries

2151

5

23 Libraries

985

6

20 Libraries

2282

7

18 Libraries

317

8

16 Libraries

704

9

15 Libraries

515

10

15 Libraries

1328

1

41 Libraries

22859

2

31 Libraries

2461

3

29 Libraries

11012

4

23 Libraries

2151

5

23 Libraries

985

6

20 Libraries

2282

7

18 Libraries

317

8

16 Libraries

704

9

15 Libraries

515

10

15 Libraries

1328

Trending Kits in Cryptocurrency

For trading in cryptocurrency using Bitcoins, a wallet is necessary to store your Bitcoins. You can create your own customized bitcoin wallet. There are multiple components required to build a Bitcoin wallet. These components are required for standard functions like authentications, user profiles, QR code scanner, Push notifications etc. and Bitcoin specific functionalities like address generation, bitcoin exchange rate information, bitcoin trading platform. Bitcoin Wallet Application built using reusable libraries like rest-api-cryptocurrencies-rates, Crypto-currency-converter, crypto-java. Wallets are usually categorized into two groups: software wallets and web wallets. Software wallets are installed on your computer or mobile device and allow you to send and receive bitcoins from them. Popular open-source libraries include:

Address Generation

These libraries will help in creating the bitcoin address as the unique identifier.

Exchange rates

The bitcoin rates, fluctuations and exchange rates against each currency.

Bitcoin trading platform

Exchange mechanism to communicate with various Bitcoin exchanges

Decentralized social media is a social network deployed on ethereum network where you can share your content freely as there is no central authority to control and also can earn cryptos by keeping the platform free from abusive content.

Development Environment

Visual Studio Code is a source-code editor made by Microsoft for Windows, Linux, and macOS. Features include support for debugging, syntax highlighting, intelligent code completion, snippets, code refactoring, and embedded Git.

Running Environment

Node.js is an open-source, cross-platform, JavaScript runtime environment. It executes JavaScript code outside of a browser.

Cryptowallet

MetaMask is a software cryptocurrency wallet used to interact with the Ethereum blockchain. It allows users to access their Ethereum wallet through a browser extension or mobile app, which can then be used to interact with decentralized applications.

Installation guide

Download, extract and double-click Kit installer file to install the kit. Note: Do ensure to extract the zip file before running it.

Metamask Connection

1. After adding Metamask extension to your browser, click get started there you will see 'IMPORT WALLET' and ' CREATE WALLET' there click the create wallet. 2. There you select I agree and it asks you to create the password. After creating the password it shows you the recovery phrase. 3. If you forget the password you can use the recovery phrase. 4. Then one Account will be created, and the default network will be there 'ETHEREUM MAINNET'. 5. At the top there is a Network tab there click show/hide network there find and select the "show test networks". 6. Select Rinkeby Test Network in Network tab. 7. To collect ETH in your account click the link 8. Copy the address which is present below the account, paste it into Testnet account address then click send the request.

Support

If you need help to use this kit, you can email us at kandi.support@openweaver.com or direct message us on Twitter Message @OpenWeaverInc.

NFT stands for Non-Fungible Token. Something that is "fungible" can be exchanged with an equivalent item .Non-fungible tokens (NFTs) are changing the way we own things digitally. Things that are not directly interchangeable or replaceable are known as non-fungible. The non-fungible token has garnered significant attention as one of the most exciting, transformative innovations blockchain has to offer developers and businesses. The Meaning of Life NFT Collection aims to create unique and personalized answers to the question: What is the meaning of life, the universe, and everything else? The NFT collection is limited to 42 NFTs.

Development Environment

VSCode is used for development and debugging. Node.js is an open-source, cross-platform, JavaScript runtime environment. It executes JavaScript code outside of a browser, whereas VSCode is used to get a typical experience of IDE for developers. npm is the default package manager for the JavaScript runtime environment Node.js.

Cryptowallet

MetaMask-extension library is a software cryptocurrency wallet used to interact with the Ethereum blockchain.

Installation Guide

Download, extract and double-click kit_installer file to install the kit. Note: Do ensure to extract the zip file before running it.

Metamask Connection

1. After adding Metamask extension to your browser, click get started there you will see 'IMPORT WALLET' and ' CREATE WALLET' there click the create wallet. 2. There you select I agree and it asks you to create the password. After creating the password it shows you the recovery phrase. 3. If you forget the password you can use the recovery phrase. 4. Then one Account will be created, and the default network will be there 'ETHEREUM MAINNET'. 5. At the top there is a Network tab there click show/hide network there find and select the "show test networks". 6. To collect ETH in your account click the link . 7. Copy the address which is present below the account, paste it into Testnet account address then click send the request.

Support

If you need help to use this kit, you can email us at kandi.support@openweaver.com or direct message us on Twitter Message Message @OpenWeaverInc.

Non-fungible tokens (NFTs) are changing the way we own things digitally. Things that are not directly interchangeable or replaceable are known as non-fungible. The non-fungible token has garnered significant attention as one of the most exciting, transformative innovations blockchain has to offer developers and businesses. NFT Generator software, lets you to create NFT collections of 10,000 or more graphic variations.

Development Environment

VsCode and Node.js are used for development and debugging. Node.js is an open-source, cross-platform, JavaScript runtime environment. It executes JavaScript code outside of a browser, whereas VsCode is used to get a typical experience of IDE for developers.

Token Generator

React Canvas adds the ability for React components to render rather than DOM. SHA1 is a cryptographic hash function for JavaScript supports UTF-8 encoding. Gif encoder is used to generate Gif from images which builds on top of previous JavaScript GIF encoders including jsgif and gifencoder.

Installation Guide

Download, extract and double-click kit_installer file to install the kit. Note: Do ensure to extract the zip file before running it.

Support

If you need help to use this kit, you can email us at kandi.support@openweaver.com or direct message us on Twitter Message Message @OpenWeaverInc.

Understanding opensource is important for anyone getting into cryptocurrency - whether it's developers mining crypto, policymakers regulating laws around crypto, or the public transacting with crypto. The backbone of many major Cryptocurrencies (like Bitcoin) and Blockchain is open-source software. While this is a concept anyone in the tech industry will already understand, the rest of the audience may not fully grasp its relevance. Bitcoin, a peer-to-peer decentralized digital currency and probably the most popular cryptocurrency today, is open source. The design is open to the community and anyone can contribute towards making the platform better. Developers can also use Bitcoin's source code to build their own services or software. How would this differ from a privately owned cryptocurrency? Firstly, as long as crypto transactions are happening over a blockchain network the transactions are decentralized. This means there is no need for a central clearing authority and transactions happen peer-to-peer. Even with this setup, however, the body owning the cryptocurrency can apply policies and regulations to the platform. They can control the value of the currency, they can restrict its daily usage, they can limit its use to selective products/services, they can control the supply, etc. This setup can quickly become tantamount to a regulatory body like the government that maintains authority over currency and transactions, and in a sense becomes a centralized (controlled) form of currency. Open source prevents this from happening. The cryptocurrency delivers all required functionality - users can perform transactions using crypto, and no element in the network, neither the platform nor the transactions, is controlled by a central body. When you use open source crypto for applications, you own the underlying software and no entity can claim stake or influence its functionality.

Cryptocurrency is one of the most exciting new technologies out there. It's changing the way we think about money, transactions, security, and more. dApps are the new way to get involved in cryptocurrency and share your own dApp with other users. dApps can operate autonomously using smart contracts on a peer-to-peer network of computers or a decentralized computing, blockchain system. dApps, or decentralized applications, are software that users can access via a browser or mobile phone. This is what gives them their name—they're "decentralized," meaning they don't rely on a single server. Instead, they operate autonomously using smart contracts on a peer-to-peer network of computers or a decentralized computing, blockchain system. They operate autonomously and can't be shut down or hacked into by anyone—even the creator! dApps are popular in Cryptocurrency. What kind of dApps are there? Well, you can build games like Splinterlands, trading cards like AtomicAssets, marketplaces for NFTs like OpenSea and Katana, or an exchange for cryptocurrencies like PancakeSwap. No matter what type of app you want to build, there's an open source library for it! Here's some of the most popular libraries for creating dApps:

If you've been looking for open source libraries to help you build Altcoin applications, this is the post for you. When Bitcoin was released in 2008, it blew everyone's minds. It was the first peer-to-peer currency transfer system that didn't require any intermediary—no banks, no credit card companies. It was also open source and decentralized, so everyone could use it equally. But there are lots of issues with Bitcoin as well, including scalability and security. So people started to create their own cryptocurrencies, called Altcoins. Altcoins are alternatives to bitcoins. They're often used to solve problems that have come up with bitcoin and other cryptocurrency users. What's interesting about Altcoin is that they're built on top of bitcoin's open source code, then modified to fit the needs of their developers and users. Now there are hundreds of these Altcoins out there, each doing something a little different than others. They're mostly open source and decentralized as well, but some help to solve the problems Bitcoin has with security or scalability better than others. In the past few years, the number of Altcoins has increased exponentially—just like the number of Bitcoin applications. We love seeing people use these open source libraries in their own development projects, so we're highlighting some of the popular open source libraries across Ethereum, Aave, Lucky Block, Cardano, Decentraland, Algorand and others.

It's an exciting time to be a developer on the ChainLink network! ChainLink is a cryptocurrency with a goal of incentivizing a global network of computers to provide reliable, real-world data to smart contracts running on top of blockchains. The ChainLink network is a decentralized oracle network that provides reliable, tamper-proof inputs and outputs for complex smart contracts on any blockchain. It's not only about the data itself; it's also about the ability for disparate blockchains and systems to talk to each other. A blockchain can't function without data from sources outside its own ecosystem. So Chainlink allows you to use external APIs and information sources (like sports scores, weather forecasts, flight schedules, and more) in your smart contract. Here are open source libraries that are popular for ChainLink use cases across Chainlink Nodes, Services for using the Chainlink API, Connecting Chainlink to other services and Community resources Note: These are not the only tools that can be used for ChainLink projects, but they are popular and well-loved by developers. We encourage you to explore some of these resources to figure out what works best for your project.

For trading in cryptocurrency using Bitcoins, a wallet is necessary to store your Bitcoins. You can create your own customized bitcoin wallet. There are multiple components required to build a Bitcoin wallet. These components are required for standard functions like authentications, user profiles, QR code scanner, Push notifications etc. and Bitcoin specific functionalities like address generation, bitcoin exchange rate information, bitcoin trading platform. Bitcoin Wallet Application built using reusable libraries like rest-api-cryptocurrencies-rates, Crypto-currency-converter, crypto-java. Wallets are usually categorized into two groups: software wallets and web wallets. Software wallets are installed on your computer or mobile device and allow you to send and receive bitcoins from them. Popular open-source libraries include:

Address Generation

These libraries will help in creating the bitcoin address as the unique identifier.

Exchange rates

The bitcoin rates, fluctuations and exchange rates against each currency.

Bitcoin trading platform

Exchange mechanism to communicate with various Bitcoin exchanges

Decentralized social media is a social network deployed on ethereum network where you can share your content freely as there is no central authority to control and also can earn cryptos by keeping the platform free from abusive content.

Development Environment

Visual Studio Code is a source-code editor made by Microsoft for Windows, Linux, and macOS. Features include support for debugging, syntax highlighting, intelligent code completion, snippets, code refactoring, and embedded Git.

Running Environment

Node.js is an open-source, cross-platform, JavaScript runtime environment. It executes JavaScript code outside of a browser.

Cryptowallet

MetaMask is a software cryptocurrency wallet used to interact with the Ethereum blockchain. It allows users to access their Ethereum wallet through a browser extension or mobile app, which can then be used to interact with decentralized applications.

Installation guide

Download, extract and double-click Kit installer file to install the kit. Note: Do ensure to extract the zip file before running it.

Metamask Connection

1. After adding Metamask extension to your browser, click get started there you will see 'IMPORT WALLET' and ' CREATE WALLET' there click the create wallet. 2. There you select I agree and it asks you to create the password. After creating the password it shows you the recovery phrase. 3. If you forget the password you can use the recovery phrase. 4. Then one Account will be created, and the default network will be there 'ETHEREUM MAINNET'. 5. At the top there is a Network tab there click show/hide network there find and select the "show test networks". 6. Select Rinkeby Test Network in Network tab. 7. To collect ETH in your account click the link 8. Copy the address which is present below the account, paste it into Testnet account address then click send the request.

Support

If you need help to use this kit, you can email us at kandi.support@openweaver.com or direct message us on Twitter Message @OpenWeaverInc.

NFT stands for Non-Fungible Token. Something that is "fungible" can be exchanged with an equivalent item .Non-fungible tokens (NFTs) are changing the way we own things digitally. Things that are not directly interchangeable or replaceable are known as non-fungible. The non-fungible token has garnered significant attention as one of the most exciting, transformative innovations blockchain has to offer developers and businesses. The Meaning of Life NFT Collection aims to create unique and personalized answers to the question: What is the meaning of life, the universe, and everything else? The NFT collection is limited to 42 NFTs.

Development Environment

VSCode is used for development and debugging. Node.js is an open-source, cross-platform, JavaScript runtime environment. It executes JavaScript code outside of a browser, whereas VSCode is used to get a typical experience of IDE for developers. npm is the default package manager for the JavaScript runtime environment Node.js.

Cryptowallet

MetaMask-extension library is a software cryptocurrency wallet used to interact with the Ethereum blockchain.

Installation Guide

Download, extract and double-click kit_installer file to install the kit. Note: Do ensure to extract the zip file before running it.

Metamask Connection

1. After adding Metamask extension to your browser, click get started there you will see 'IMPORT WALLET' and ' CREATE WALLET' there click the create wallet. 2. There you select I agree and it asks you to create the password. After creating the password it shows you the recovery phrase. 3. If you forget the password you can use the recovery phrase. 4. Then one Account will be created, and the default network will be there 'ETHEREUM MAINNET'. 5. At the top there is a Network tab there click show/hide network there find and select the "show test networks". 6. To collect ETH in your account click the link . 7. Copy the address which is present below the account, paste it into Testnet account address then click send the request.

Support

If you need help to use this kit, you can email us at kandi.support@openweaver.com or direct message us on Twitter Message Message @OpenWeaverInc.

Non-fungible tokens (NFTs) are changing the way we own things digitally. Things that are not directly interchangeable or replaceable are known as non-fungible. The non-fungible token has garnered significant attention as one of the most exciting, transformative innovations blockchain has to offer developers and businesses. NFT Generator software, lets you to create NFT collections of 10,000 or more graphic variations.

Development Environment

VsCode and Node.js are used for development and debugging. Node.js is an open-source, cross-platform, JavaScript runtime environment. It executes JavaScript code outside of a browser, whereas VsCode is used to get a typical experience of IDE for developers.

Token Generator

React Canvas adds the ability for React components to render rather than DOM. SHA1 is a cryptographic hash function for JavaScript supports UTF-8 encoding. Gif encoder is used to generate Gif from images which builds on top of previous JavaScript GIF encoders including jsgif and gifencoder.

Installation Guide

Download, extract and double-click kit_installer file to install the kit. Note: Do ensure to extract the zip file before running it.

Support

If you need help to use this kit, you can email us at kandi.support@openweaver.com or direct message us on Twitter Message Message @OpenWeaverInc.

Understanding opensource is important for anyone getting into cryptocurrency - whether it's developers mining crypto, policymakers regulating laws around crypto, or the public transacting with crypto. The backbone of many major Cryptocurrencies (like Bitcoin) and Blockchain is open-source software. While this is a concept anyone in the tech industry will already understand, the rest of the audience may not fully grasp its relevance. Bitcoin, a peer-to-peer decentralized digital currency and probably the most popular cryptocurrency today, is open source. The design is open to the community and anyone can contribute towards making the platform better. Developers can also use Bitcoin's source code to build their own services or software. How would this differ from a privately owned cryptocurrency? Firstly, as long as crypto transactions are happening over a blockchain network the transactions are decentralized. This means there is no need for a central clearing authority and transactions happen peer-to-peer. Even with this setup, however, the body owning the cryptocurrency can apply policies and regulations to the platform. They can control the value of the currency, they can restrict its daily usage, they can limit its use to selective products/services, they can control the supply, etc. This setup can quickly become tantamount to a regulatory body like the government that maintains authority over currency and transactions, and in a sense becomes a centralized (controlled) form of currency. Open source prevents this from happening. The cryptocurrency delivers all required functionality - users can perform transactions using crypto, and no element in the network, neither the platform nor the transactions, is controlled by a central body. When you use open source crypto for applications, you own the underlying software and no entity can claim stake or influence its functionality.

Cryptocurrency is one of the most exciting new technologies out there. It's changing the way we think about money, transactions, security, and more. dApps are the new way to get involved in cryptocurrency and share your own dApp with other users. dApps can operate autonomously using smart contracts on a peer-to-peer network of computers or a decentralized computing, blockchain system. dApps, or decentralized applications, are software that users can access via a browser or mobile phone. This is what gives them their name—they're "decentralized," meaning they don't rely on a single server. Instead, they operate autonomously using smart contracts on a peer-to-peer network of computers or a decentralized computing, blockchain system. They operate autonomously and can't be shut down or hacked into by anyone—even the creator! dApps are popular in Cryptocurrency. What kind of dApps are there? Well, you can build games like Splinterlands, trading cards like AtomicAssets, marketplaces for NFTs like OpenSea and Katana, or an exchange for cryptocurrencies like PancakeSwap. No matter what type of app you want to build, there's an open source library for it! Here's some of the most popular libraries for creating dApps:

If you've been looking for open source libraries to help you build Altcoin applications, this is the post for you. When Bitcoin was released in 2008, it blew everyone's minds. It was the first peer-to-peer currency transfer system that didn't require any intermediary—no banks, no credit card companies. It was also open source and decentralized, so everyone could use it equally. But there are lots of issues with Bitcoin as well, including scalability and security. So people started to create their own cryptocurrencies, called Altcoins. Altcoins are alternatives to bitcoins. They're often used to solve problems that have come up with bitcoin and other cryptocurrency users. What's interesting about Altcoin is that they're built on top of bitcoin's open source code, then modified to fit the needs of their developers and users. Now there are hundreds of these Altcoins out there, each doing something a little different than others. They're mostly open source and decentralized as well, but some help to solve the problems Bitcoin has with security or scalability better than others. In the past few years, the number of Altcoins has increased exponentially—just like the number of Bitcoin applications. We love seeing people use these open source libraries in their own development projects, so we're highlighting some of the popular open source libraries across Ethereum, Aave, Lucky Block, Cardano, Decentraland, Algorand and others.

It's an exciting time to be a developer on the ChainLink network! ChainLink is a cryptocurrency with a goal of incentivizing a global network of computers to provide reliable, real-world data to smart contracts running on top of blockchains. The ChainLink network is a decentralized oracle network that provides reliable, tamper-proof inputs and outputs for complex smart contracts on any blockchain. It's not only about the data itself; it's also about the ability for disparate blockchains and systems to talk to each other. A blockchain can't function without data from sources outside its own ecosystem. So Chainlink allows you to use external APIs and information sources (like sports scores, weather forecasts, flight schedules, and more) in your smart contract. Here are open source libraries that are popular for ChainLink use cases across Chainlink Nodes, Services for using the Chainlink API, Connecting Chainlink to other services and Community resources Note: These are not the only tools that can be used for ChainLink projects, but they are popular and well-loved by developers. We encourage you to explore some of these resources to figure out what works best for your project.

Trending Discussions on Cryptocurrency

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    Can't use Selenium to find elements. Try to avoid deprecated commands warning, got result only one element. (on Colab)
    How to programmatically validate Tether (TRC20) Wallet Addresses in PHP?
    Custom Loss Function - Keras
    Running python file on windows CMD vs VScode
    How to turn HTML widget code into NEXTjs code to use in an app (CoinMarketCap Price Marquee Ticker)
    How can I properly graph these two datasets using Pandas in Matplotlib?
    For each item update database
    Why are certain time values not plotting on this graph?

QUESTION

Flutter - How to refresh a Widget on button Click?

Asked 2022-Mar-01 at 10:15

I'm making an app where I plot charts of cryptocurrency. I have a file like this, that renders a chart of btc/24h in it. I'm using chart_sparkline package to plot the chart.

I have the following code, and it is not working on a button click, how do I fix this?

1import 'package:flutter/material.dart';
2import 'package:tracker/renderchart.dart';
3
4class Portfolio extends StatefulWidget {
5    @override
6    _PortfolioState createState() => _PortfolioState();
7}
8
9class _PortfolioState extends State<Portfolio> {
10    Widget portfolioChart = RenderPortfolioChart(coin: "bitcoin", days: 1);
11
12    @override
13    Widget build(BuildContext context) {
14        return Container(
15            child: Column(
16                children: [
17                    portfolioChart,
18
19                    const Padding(padding: EdgeInsets.only(top: 10.0)),
20
21                    const Text("Hello, there!", style: TextStyle(color: Colors.white)),
22
23                    const Padding(padding: EdgeInsets.only(top: 10.0)),
24
25                    ElevatedButton(
26                        onPressed: (){
27                            print("updating chart");
28                            setState(() {
29                              portfolioChart = RenderPortfolioChart(coin: "ethereum", days: 1);
30                            });
31                        },
32
33                        child: Text("ETH"),
34                    )
35                ]
36            ),
37        );
38    }
39}
40

Basically, the elevatedButton should update the chart, but it is not working in my case, how to fix this?

ANSWER

Answered 2022-Mar-01 at 10:15

I fixed this, I was passing constructor parameters of Portfolio to _PortfolioState, this won't update the values the next time. Instead of passing these values to _PortfolioState, I used widget.coin and widget.days to extract the data from the Portfolio class.

Thanks to this StackOverflow link: Passing Data to a Stateful Widget in Flutter

Source https://stackoverflow.com/questions/71293849

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QUESTION

Flutter - How to refresh a Widget on button Click?

Asked 2022-Mar-01 at 10:15

I'm making an app where I plot charts of cryptocurrency. I have a file like this, that renders a chart of btc/24h in it. I'm using chart_sparkline package to plot the chart.

I have the following code, and it is not working on a button click, how do I fix this?

1import 'package:flutter/material.dart';
2import 'package:tracker/renderchart.dart';
3
4class Portfolio extends StatefulWidget {
5    @override
6    _PortfolioState createState() => _PortfolioState();
7}
8
9class _PortfolioState extends State<Portfolio> {
10    Widget portfolioChart = RenderPortfolioChart(coin: "bitcoin", days: 1);
11
12    @override
13    Widget build(BuildContext context) {
14        return Container(
15            child: Column(
16                children: [
17                    portfolioChart,
18
19                    const Padding(padding: EdgeInsets.only(top: 10.0)),
20
21                    const Text("Hello, there!", style: TextStyle(color: Colors.white)),
22
23                    const Padding(padding: EdgeInsets.only(top: 10.0)),
24
25                    ElevatedButton(
26                        onPressed: (){
27                            print("updating chart");
28                            setState(() {
29                              portfolioChart = RenderPortfolioChart(coin: "ethereum", days: 1);
30                            });
31                        },
32
33                        child: Text("ETH"),
34                    )
35                ]
36            ),
37        );
38    }
39}
40

Basically, the elevatedButton should update the chart, but it is not working in my case, how to fix this?

ANSWER

Answered 2022-Mar-01 at 10:15

I fixed this, I was passing constructor parameters of Portfolio to _PortfolioState, this won't update the values the next time. Instead of passing these values to _PortfolioState, I used widget.coin and widget.days to extract the data from the Portfolio class.

Thanks to this StackOverflow link: Passing Data to a Stateful Widget in Flutter

Source https://stackoverflow.com/questions/71293849