loopchain | Blockchain engine for icon foundation | Blockchain library

by icon-project Python Version: 2.7.1 License: Apache-2.0

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | loopchain Summary

loopchain is a Python library typically used in Blockchain, Bitcoin applications. loopchain has no bugs, it has build file available, it has a Permissive License and it has low support. However loopchain has 1 vulnerabilities. You can download it from GitHub.

Loopchain is a high-performance Blockchain Consensus & Network engine of ICON project. In order to run a loopchain node, you need to install ICON Service that runs a smart contract and interacts with loopchain engine, and ICON RPC Server that processes HTTP requests from clients.

Support

Quality

Security

License

Reuse

Support

loopchain has a low active ecosystem.

It has 72 star(s) with 31 fork(s). There are 26 watchers for this library.

It had no major release in the last 12 months.

There are 9 open issues and 22 have been closed. On average issues are closed in 22 days. There are 11 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of loopchain is 2.7.1

Quality

loopchain has 0 bugs and 0 code smells.

Security

loopchain has 1 vulnerability issues reported (0 critical, 1 high, 0 medium, 0 low).

loopchain code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

loopchain is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

loopchain releases are available to install and integrate.

Build file is available. You can build the component from source.

Installation instructions, examples and code snippets are available.

loopchain saves you 8670 person hours of effort in developing the same functionality from scratch.

It has 17776 lines of code, 1783 functions and 210 files.

It has medium code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed loopchain and discovered the below as its top functions. This is intended to give you an instant insight into loopchain implemented functionality, and help decide if they suit your requirements.

Compute the vote on the given block
Convert response to JSON query
Write preps
Clears the cache for the given roothash
Return the consensus block
Add a shutdown block to the blockchain
Resets the leader
Resets the leaders of the leader
Run quick command
Start the task as a score
Convert a private key to a private key store
Create a Transaction object from a dict
Relay all transactions
Synchronize block height and block height
Publish a new block
Gets the block at the given block height
Add a block to the blockchain
Get the status of the peer
Start the service
Create a new ICX transaction
Start the worker as a score
Start channel creation
Call a method in time
The main function
Cache result
Convert the private key to a private key store
Normalize request url
Called when a leader vote has complained

Get all kandi verified functions for this library.

loopchain Key Features

No Key Features are available at this moment for loopchain.

loopchain Examples and Code Snippets

No Code Snippets are available at this moment for loopchain.

Community Discussions

Trending Discussions on Blockchain

Why Metamask if web3.js can interact directly with ganache?

How to get all the NFTs of particular smart contract

I am not able to use ipfs

Interacting With Contract Web3.js

Should I use the elrond devnet instead of the testnet for development?

Trying to run "brownie run .\scripts\deploy.py --network rinkeby" but getting a ValueError

I want to get the address from mnemonic with the proper derivation path

error in ganache installation: The term 'ganache-cli' is not recognized as the name of a cmdlet, function, script file, or operable program

Truffle installation error: "install latest visual studio version"

Why am I getting this error Error: Transaction reverted without a reason string. When trying to swap tokens on uniswap?

QUESTION

Why Metamask if web3.js can interact directly with ganache?

Asked 2022-Mar-30 at 17:55

I am new to blockchain app development, I saw a project where ganache accounts are imported into Metamask, then web3.js is used to access and print those accounts and balances on Frontend (user interface).

If web3.js can directly access ganache blockchain accounts and balances, why do we need Metamask in between?

...

ANSWER

Answered 2022-Feb-08 at 09:11

If web3.js can directly acccess ganache blockchain accounts and balances, why we need metamask in between?

In this case, you don't need MetaMask to sign the transaction, as the node (Ganache) holds your private key.

But in a public environment (testnets and mainnet), the node doesn't hold your private key, so you'd need to sign the transaction using MetaMask (or any other tool that holds the private key).

Source https://stackoverflow.com/questions/70952165

QUESTION

How to get all the NFTs of particular smart contract

Asked 2022-Mar-30 at 11:00

I tried https://docs.opensea.io/reference opensea.io docs to fetch data. However, I think there are 2 APIs.

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ANSWER

Answered 2021-Aug-04 at 15:03

The assets endpoint (docs) has the asset_contract_address filter that allows you to filter by a contract address. Which will effectively allow you to paginate through all NFTs of the contract (that Opensea knows of).

Example:

Source https://stackoverflow.com/questions/68651167

QUESTION

I am not able to use ipfs

Asked 2022-Mar-29 at 03:32

I want to publish files on ipfs but it's showing me an error.

Here is my code...

...

ANSWER

Answered 2021-Nov-11 at 04:27

I am not familiar with ipfs but i checked the official docs and they have done the first line like this:

Source https://stackoverflow.com/questions/69897780

QUESTION

Interacting With Contract Web3.js

Asked 2022-Mar-19 at 17:10

I have been trying to interact with a contract on the AVAX chain using web3js and it keeps throwing the error, "TypeError: Cannot read properties of undefined (reading 'send')". I cannot figure out why this is happening, as it should be a valid statement. If anyone can help that would be awesome.

...

ANSWER

Answered 2022-Mar-19 at 17:10

The ABI needs to contain just the function and event definitions that are stored in your result property. Without the wrapper object containing status and other properties.

So in your case

Source https://stackoverflow.com/questions/71534875

QUESTION

Should I use the elrond devnet instead of the testnet for development?

Asked 2022-Mar-08 at 09:03

I've been using the testnet lately and I encounter issues: they reset it very often and the service is down for multiple hours and sometimes have bugs.

Should I use the devnet? From what I've understood it's more stable and they reset it less often?

I have a backend in js that uses the elrond-sdk-erdjs and I'm confused because there is no function that initializes the https://devnet-gateway.elrond.com only the testnet. Is there a reason?

utils.ts

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ANSWER

Answered 2021-Aug-24 at 12:56

The testnet is pretty volatile and it is reset very often (maybe weekly), without any warnings. Elrond recommends developers to use the devnet, it is reset maybe once every 3-4 months, so it's more stable.

You can get the provider like this:

Source https://stackoverflow.com/questions/68863572

QUESTION

Trying to run "brownie run .\scripts\deploy.py --network rinkeby" but getting a ValueError

Asked 2022-Mar-01 at 18:15

Hey guys I am trying to deploy my project on the rinkeby chain using infura, but I am getting a ValueError Here is my trackback:

...

ANSWER

Answered 2021-Nov-28 at 10:14

it appears your env variables are not set correctly, and it looks like in this case it's your WEB3_INFURA_PROJECT_ID.

You can fix it by setting the variable in your .env file and adding dotenv: .env to your brownie-config.yaml.

brownie-config.yaml:

dotenv: .env .env:

export WEB3_INFURA_PROJECT_ID=YOUR_PROJECT_ID_HERE Remember to save these files.

Additionally, you should be on at least brownie version v1.14.6. You can find out what version you're on with:

brownie --version

Source https://stackoverflow.com/questions/70098080

QUESTION

I want to get the address from mnemonic with the proper derivation path

Asked 2022-Feb-23 at 00:41

I am very new to blockchain programming and programming in general. I want to generate my SOL address using the mnemonic seed phrase with the derivation path "m/44'/501'/0'/0". I can't find a proper BIP44 module for python where you can specify the derivation path.

...

ANSWER

Answered 2022-Feb-23 at 00:41

After a long search through the internet, I have finally found a way of solving my problem that I want to share with you.

Source https://stackoverflow.com/questions/71217530

QUESTION

error in ganache installation: The term 'ganache-cli' is not recognized as the name of a cmdlet, function, script file, or operable program

Asked 2022-Feb-18 at 17:26

I installed ganache with yarn, but when I check the version to see if correctly installed, I get the error: "The term 'ganache-cli' is not recognized as the name of a cmdlet, function, script file, or operable program".

...

ANSWER

Answered 2021-Oct-18 at 02:20

I had the same issue but then I installed with npm and it worked

Source https://stackoverflow.com/questions/69236378

QUESTION

Truffle installation error: "install latest visual studio version"

Asked 2022-Feb-17 at 16:59

enter image description hereI've installed latest version of visual studio with desktop development c++ workload but still they are asking for it when i try to install truffle. I entered command :npm install -g truffle and lot of messages appear after 2 to 3 minutes of some kind of installation process. they are asking for Latest version of Visual Studio with "Desktop development with c++ workload" whereas i just installed my Visual studio with the same requirements. node.js and ganache are already installed. Is there any other way to install truffle?

...

ANSWER

Answered 2022-Feb-17 at 16:59

If you are installing it using npm package manager. Downgrade your npm to 7.24.2 it worked for me I hope it will also work for you. Use the following command to downgrade npm

Source https://stackoverflow.com/questions/70954642

QUESTION

Why am I getting this error Error: Transaction reverted without a reason string. When trying to swap tokens on uniswap?

Asked 2022-Feb-17 at 06:46

I'm trying to swap tokens on uniswap unsing hardhat's mainnet fork but I'm getting this error: Error: Transaction reverted without a reason string. And I don't really know why.

Here is my swap function:

...

ANSWER

Answered 2022-Feb-17 at 06:46

Weth is different from other token, you're not able to use swapTokensForTokens. We must use the swapEthForTokens function instead, and you have to declare the data option separately.

so in your case we need to do:

Solidity code:

Source https://stackoverflow.com/questions/71152833

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

CVE-2019-12997 HIGH

In Loopchain through 2.2.1.3, an attacker can escalate privileges from a low-privilege shell by changing the environment (aka injection in the DEFAULT_SCORE_HOST environment variable).

https://github.com/icon-project/loopchain/issues/231

Install loopchain

Check all requirements properly installed. If you don't see any error logs and you have started rabbitmq server, you may move on to next step.
Check all requirements properly installed $ make requirements If you don't see any error logs and you have started rabbitmq server, you may move on to next step.
Proceed installation $ make all This command is for setting up: packages: installs all necessary python packages via setup.py. gRPC proto: generates python gRPC code from protocol buffer which is defined in loopchain.proto keystore: generates a keystore file. NOTE: Password must be at least 8 characters long including alphabet, number, and special character. Please be careful not to forget the password since you will need it to run the Citizen Node.
Run Citizen Run Citizen Node on ICON Testnet network Run Citizen Node on ICON Mainnet network
follow this guide : install loopchain via snap