ledger4j | Ledger HID Communications Library | Blockchain library

by aionnetwork Java Version: Current License: MIT

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

kandi X-RAY | ledger4j Summary

ledger4j is a Java library typically used in Blockchain applications. ledger4j has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has low support. You can download it from GitHub.

Basic Ledger Comms Library.

Support

Quality

Security

License

Reuse

Support

ledger4j has a low active ecosystem.

It has 2 star(s) with 1 fork(s). There are 1 watchers for this library.

It had no major release in the last 6 months.

ledger4j has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of ledger4j is current.

Quality

ledger4j has 0 bugs and 0 code smells.

Security

ledger4j has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

ledger4j code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

ledger4j is licensed under the MIT License. This license is Permissive.

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

Reuse

ledger4j releases are not available. You will need to build from source code and install.

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

It has 820 lines of code, 67 functions and 17 files.

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

Top functions reviewed by kandi - BETA

kandi has reviewed ledger4j and discovered the below as its top functions. This is intended to give you an instant insight into ledger4j implemented functionality, and help decide if they suit your requirements.

Retrieves the public key from the ledger
Generate a BIP44 path
Trims the end of an array
Trim the head
Exchange from the ledger
Convert an int to a byte array
Merge two byte arrays
Creates a byte representation of an AION DION command
Wrap a command into a byte array
Serialize a packet
Unwraps the response DFU from the channel
Deserialize a packet from the buffer
Reset Ledger
Returns a LedgerDevice with the specified ID
Checks to see if the device is a ledger
Signs a key and returns the signed signature of the signed account
Builds an AION command with the given payload and payload
Retrieves a 64 - bit chunk from the device
Appends the entry to the message builder

Get all kandi verified functions for this library.

ledger4j Key Features

No Key Features are available at this moment for ledger4j.

ledger4j Examples and Code Snippets

No Code Snippets are available at this moment for ledger4j.

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?

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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...

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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.

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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?

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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

No vulnerabilities reported

Install ledger4j

You can download it from GitHub.
You can use ledger4j like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the ledger4j component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

Find more information at: