blockchain

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Decred daemon in Go (golang). For more information about how to use this package see README

Latest version published 1 year ago

GitHub

Package Health Score

70 / 100

security
No known security issues
popularity
Popular
maintenance
Inactive
community
Active

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Popularity

Popular

Imported By: 292
GitHub Stars: 729
Forks: 287
Contributors: 120

Usage Popularity

Based on project statistics from the GitHub repository for the Golang package blockchain, we found that it has been 729 times.

The popularity score for Golang modules is calculated based on the number of stars that the project has on GitHub as well as the number of imports by other modules.

Security

No known security issues

Security risks

Direct Vulnerabilities: 0
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0
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0
M
0
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Release Date

Jun 10, 2023

License

ISC

Security Policy

Yes

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Maintenance

Inactive

Commit Frequency

Open Issues: 18
Open PR: 4
Last Release: 1 year ago
Last Commit: 3 months ago

Further analysis of the maintenance status of github.com/decred/dcrd/blockchain based on released golang versions cadence, the repository activity, and other data points determined that its maintenance is Inactive.

An important project maintenance signal to consider for github.com/decred/dcrd/blockchain is that it hasn't seen any new versions released to golang in the past 12 months, and could be considered as a discontinued project, or that which receives low attention from its maintainers.

In the past month we didn't find any pull request activity or change in issues status has been detected for the GitHub repository.

Community

Active

Readme.md: Yes
Contributing.md: No
Code of Conduct: No
Contributors: 120
Funding: No

A good and healthy external contribution signal for github.com/decred/dcrd/blockchain project, which invites more than one hundred open source maintainers to collaborate on the repository.

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Readme

dcrd

Decred Overview

Decred is a blockchain-based cryptocurrency with a strong focus on community input, open governance, and sustainable funding for development. It utilizes a hybrid proof-of-work and proof-of-stake mining system to ensure that a small group cannot dominate the flow of transactions or make changes to Decred without the input of the community. A unit of the currency is called a decred (DCR).

https://decred.org

Latest Downloads

https://decred.org/downloads/

Core software:

dcrd: a Decred full node daemon (this)
dcrwallet: a CLI Decred wallet daemon
dcrctl: a CLI client for dcrd and dcrwallet

Bundles:

Decrediton: a GUI bundle for dcrd and dcrwallet
CLI app suite: a CLI bundle for dcrd and dcrwallet

What is dcrd?

dcrd is a full node implementation of Decred written in Go (golang).

It acts as a fully-validating chain daemon for the Decred cryptocurrency. dcrd maintains the entire past transactional ledger of Decred and allows relaying of transactions to other Decred nodes around the world.

This software is currently under active development. It is extremely stable and has been in production use since February 2016.

It important to note that dcrd does NOT include wallet functionality. Users who desire a wallet will need to use dcrwallet(CLI) or Decrediton(GUI).

What is a full node?

The term 'full node' is short for 'fully-validating node' and refers to software that fully validates all transactions and blocks, as opposed to trusting a 3rd party. In addition to validating transactions and blocks, nearly all full nodes also participate in relaying transactions and blocks to other full nodes around the world, thus forming the peer-to-peer network that is the backbone of the Decred cryptocurrency.

The full node distinction is important, since full nodes are not the only type of software participating in the Decred peer network. For instance, there are 'lightweight nodes' which rely on full nodes to serve the transactions, blocks, and cryptographic proofs they require to function, as well as relay their transactions to the rest of the global network.

Why run dcrd?

As described in the previous section, the Decred cryptocurrency relies on having a peer-to-peer network of nodes that fully validate all transactions and blocks and then relay them to other full nodes.

Running a full node with dcrd contributes to the overall security of the network, increases the available paths for transactions and blocks to relay, and helps ensure there are an adequate number of nodes available to serve lightweight clients, such as Simplified Payment Verification (SPV) wallets.

Without enough full nodes, the network could be unable to expediently serve users of lightweight clients which could force them to have to rely on centralized services that significantly reduce privacy and are vulnerable to censorship.

In terms of individual benefits, since dcrd fully validates every block and transaction, it provides the highest security and privacy possible when used in conjunction with a wallet that also supports directly connecting to it in full validation mode, such as dcrwallet (CLI) and Decrediton (GUI). It is also ideal for businesses and services that need the most reliable and accurate data about transactions.

Minimum Recommended Specifications (dcrd only)

16 GB disk space (as of April 2022, increases over time, ~2 GB/yr)
2 GB memory (RAM)
~150 MB/day download, ~1.5 GB/day upload
- Plus one-time initial download of the entire block chain
Windows 10 (server preferred), macOS, Linux
High uptime

Getting Started

So, you've decided to help the network by running a full node. Great! Running dcrd is simple. All you need to do is install dcrd on a machine that is connected to the internet and meets the minimum recommended specifications, and launch it.

Also, make sure your firewall is configured to allow inbound connections to port 9108.

Installing and updating

Binaries (Windows/Linux/macOS)

Binary releases are provided for common operating systems and architectures. The easiest method is to download Decrediton from the link below, which will include dcrd. Advanced users may prefer the Command-line app suite, which includes dcrd and dcrwallet.

https://decred.org/downloads/

How to verify binaries before installing: https://docs.decred.org/advanced/verifying-binaries/
How to install the CLI Suite: https://docs.decred.org/wallets/cli/cli-installation/
How to install Decrediton: https://docs.decred.org/wallets/decrediton/decrediton-setup/

Build from source (all platforms)

Install Dependencies

Go 1.21 or 1.22

Installation instructions can be found here: https://golang.org/doc/install. Ensure Go was installed properly and is a supported version:
```
$ go version
$ go env GOROOT GOPATH
```
NOTE: GOROOT and GOPATH must not be on the same path. Since Go 1.8 (2016), GOROOT and GOPATH are set automatically, and you do not need to change them. However, you still need to add $GOPATH/bin to your PATH in order to run binaries installed by go get and go install (On Windows, this happens automatically).

Unix example -- add these lines to .profile:
```
PATH="$PATH:/usr/local/go/bin"  # main Go binaries ($GOROOT/bin)
PATH="$PATH:$HOME/go/bin"       # installed Go projects ($GOPATH/bin)
```
Git

Installation instructions can be found at https://git-scm.com or https://gitforwindows.org.
```
$ git version
```

Windows Example

PS&gt; git clone https://github.com/decred/dcrd $env:USERPROFILE\src\dcrd
PS&gt; cd $env:USERPROFILE\src\dcrd
PS&gt; go install . .\cmd\...
PS&gt; dcrd -V

Run the dcrd executable now installed in "$(go env GOPATH)\bin".

Unix Example

This assumes you have already added $GOPATH/bin to your $PATH as described in dependencies.

$ git clone https://github.com/decred/dcrd $HOME/src/dcrd
$ git clone https://github.com/decred/dcrctl $HOME/src/dcrctl
$ (cd $HOME/src/dcrd &amp;&amp; go install . ./...)
$ (cd $HOME/src/dcrctl &amp;&amp; go install)
$ dcrd -V

Run the dcrd executable now installed in $GOPATH/bin.

Building and Running OCI Containers (aka Docker/Podman)

The project does not officially provide container images. However, all of the necessary files to build your own lightweight non-root container image based on scratch from the latest source code are available in contrib/docker.

It is also worth noting that, to date, most users typically prefer to run dcrd directly, without using a container, for at least a few reasons:

dcrd is a static binary that does not require root privileges and therefore does not suffer from the usual deployment issues that typically make containers attractive
It is harder and more verbose to run dcrd from a container as compared to normal:
- dcrd is designed to automatically create a working default configuration which means it just works out of the box without the need for additional configuration for almost all typical users
- The blockchain data and configuration files need to be persistent which means configuring and managing a docker data volume
- Running non-root containers with docker requires special care in regards to permissions

Running Tests

All tests and linters may be run using the script run_tests.sh. Generally, Decred only supports the current and previous major versions of Go.

./run_tests.sh

Contact

If you have any further questions you can find us at:

https://decred.org/community/

Issue Tracker

The integrated github issue tracker is used for this project.

Documentation

The documentation for dcrd is a work-in-progress. It is located in the docs folder.

License

dcrd is licensed under the copyfree ISC License.

FAQs

What is blockchain?

Decred daemon in Go (golang). Visit Snyk Advisor to see a full health score report for blockchain, including popularity, security, maintenance & community analysis.

Is blockchain popular?

The golang package blockchain receives a total of ? weekly downloads. As such, blockchain popularity was classified as a popular. Visit the popularity section on Snyk Advisor to see the full health analysis.

Is blockchain well maintained?

We found indications that blockchain is an Inactive project. See the full package health analysis to learn more about the package maintenance status.

Is blockchain safe to use?

The golang package blockchain was scanned for known vulnerabilities and missing license, and no issues were found. Thus the package was deemed as safe to use. See the full health analysis review.

Last updated on 18 September-2024, at 05:09 (UTC).

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Readme

dcrd

Decred Overview

Latest Downloads

What is dcrd?

What is a full node?

Why run dcrd?

Minimum Recommended Specifications (dcrd only)

Getting Started

Installing and updating

Binaries (Windows/Linux/macOS)

Build from source (all platforms)

Building and Running OCI Containers (aka Docker/Podman)

Running Tests

Contact

Issue Tracker

Documentation

License

FAQs

What is blockchain?

Is blockchain popular?

Is blockchain well maintained?

Is blockchain safe to use?

Build a secure application checklist

Select a recommended open source package

Scan your app for vulnerabilities

Source Code

Open Source

Container

Config

Fix identified vulnerabilities

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