Onz Blockchain Explorer

Onz Explorer version 1.4.3 works in conjunction with the Onz Core API. It uses Redis for caching data and Freegeoip to parse IP geo-location data.

Prerequisites

These programs and resources are required to install and run Onz Explorer

Nodejs v6.10.1 or higher (https://nodejs.org/) -- Nodejs serves as the underlying engine for code execution.
```
curl -sL https://deb.nodesource.com/setup_6.x | sudo -E bash -
sudo apt-get install -y nodejs
```
Redis (http://redis.io) -- Redis is used for caching parsed exchange data.

sudo apt-get install -y redis-server

Freegeoip (https://github.com/fiorix/freegeoip) -- Freegeoip is used by the Network Monitor for IP address geo-location.

wget https://github.com/fiorix/freegeoip/releases/download/v3.1.5/freegeoip-3.1.5-linux-amd64.tar.gz
tar -zxf freegeoip-3.1.5-linux-amd64.tar.gz
ln -s freegeoip-3.1.5-linux-amd64 freegeoip
nohup ./freegeoip/freegeoip > ./freegeoip/freegeoip.log 2>&1 &

Grunt.js (http://gruntjs.com/) -- Grunt is used to run eslint and unit tests.

sudo npm install -g grunt
PM2 (https://github.com/Unitech/pm2) -- PM2 manages the node process for Onz Explorer and handles log rotation (Highly Recommended)

sudo npm install -g pm2
PM2-logrotate (https://github.com/pm2-hive/pm2-logrotate) -- Manages PM2 logs
```
pm2 install pm2-logrotate
pm2 set pm2-logrotate:max_size 100M
```
Git (https://github.com/git/git) -- Used for cloning and updating Onz Explorer

sudo apt-get install -y git
Tool chain components -- Used for compiling dependencies

sudo apt-get install -y python build-essential automake autoconf libtool

Installation Steps

Clone the Onz Explorer Repository:

git clone https://github.com/OnzCoin/onz-explorer.git
cd onz-explorer
npm install

Build Steps

Frontend

The frontend is using Webpack to create core bundles for Onz Explorer.

For having a watcher to generate bundles continuously for all the changes of the code, Run the following command:

npm run start

And for generating the minified bundles in production environment run:

npm run build

If you want to add a meta tag with name and content defined (For example to verify your ownership to Google analytics) run:

SERVICE_NAME='your service name' CLIENT_ID='you client id' npm run build

Market Watcher

Candlestick data needs to be initialized prior to starting Onz Explorer. During runtime candlestick data is updated automatically.

To build candlestick data for each exchange run:

grunt candles:build

To update candlestick data manually run after initialization:

grunt candles:update

Configuration

The default config.js file contains all of the configuration settings for Onz Explorer. These options can be modified according to comments included in configuration file.

Top Accounts

To enable Top Accounts functionality, edit your Onz Client config.json (not the explorer):

{
    "port": 8000,
    "address": "0.0.0.0",
    "version": "0.5.0",
    "minVersion": "~0.5.0",
    "fileLogLevel": "info",
    "logFileName": "logs/onz.log",
    "consoleLogLevel": "info",
    "trustProxy": false,
    "topAccounts": false, <--- This line needs to be changed to read true

After the change is made the Onz Client will need to be restarted. (Example):

bash /PATH_TO_ONZ_DIR/onz.sh reload

Managing Onz Explorer

To test that Onz Explorer is configured correctly, run the following command:

node app.js

Open: http://localhost:6040, or if its running on a remote system, switch localhost for the external IP Address of the machine.

Once the process is verified as running correctly, CTRL+C and start the process with PM2. This will fork the process into the background and automatically recover the process if it fails.

pm2 start pm2-explorer.json

After the process is started its runtime status and log location can be found by issuing this statement:

pm2 list

To stop Explorer after it has been started with PM2, issue the following command:

pm2 stop onz-explorer

Tests

Before running any tests, please ensure Onz Explorer and Onz Client are configured to run on the Onz Testnet.

Replace config.js with config.test file from the test directory:

cp test/config.test ./config.js

Replace the config.json for the Onz Client the corresponding file under the test directory:

cp test/config_onz.json /PATH_TO_ONZ_DIR/config.json

Then restart the Onz Client (example):

pm2 restart /PATH_TO_ONZ_DIR/app.js

Launch Onz Explorer (runs on port 6040):

pm2 start pm2-explorer.json

Run the test suite:

npm test

Run individual tests:

npm test -- test/api/accounts.js
npm test -- test/api/transactions.js

End-to-end Tests

Setup for end-to-end tests:

Do all setup steps from "Test" section of this README

Make sure you have wget installed (it's used in ./e2e-test-setup.sh). On Linux by default. On MacOS:

brew install wget

Setup protractor

./node_modules/protractor/bin/webdriver-manager update

Run end-to-end test suite:

./e2e-test-setup.sh /PATH_TO_ONZ_DIR
npm run e2e-test -s

Run one end-to-end test feature file:

npm run e2e-test -s -- --specs=features/address.feature

License

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

This program also incorporates work previously released with lisk 0.7.0 (and earlier) versions under the MIT License. To comply with the requirements of that license, the following permission notice, applicable to those parts of the code only, is included below:

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

scottie/onz-explorer