Install RskJ Using Fat JAR

Following the instructions below you will install and run the RSK node and it will work connected to RSK MainNet (by default).

Then, you can:

• Switch from MainNet to TestNet
• Get your Standalone (RegTest) node

Install the node using RskJ Fat (or Uber) JAR

The Fat JAR or Uber JAR can be downloaded or compiled (in a reproducible way or not).

Once you have the JAR, you should install the Solidity Compiler and the Java 8 JDK.

Also you should download the node config file.

Next step is to complete your configuration by generating your node keys and identifiers. Type this command on terminal:

$ java -cp <PATH-TO-THE-RSKJ-FATJAR> co.rsk.GenNodeKeyId

• Replace <PATH-TO-THE-RSKJ-FATJAR> with your path to the jar file. As an example: C:/RskjCode/rskj-core-0.4.1-BAMBOO-all.jar

It creates an unique identifier for the node and generates a valid key to be used:

{
   "privateKey": "47e50ddc101094b1a078c52507fb65d5a30cf492a69d1520e2b2a7de40c6a3ad",
   "publicKey": "0477a96a97e274113fd4519b01fa968b5706f3d2b5e70fa7a4b6c2fa09a1c6cddeca837419ba4874767cb533601f3f601976f871bc1287c35aef24e10d47254481",
   "address": "6512be26a5f9bb9fc1badbf8274d9121b7a8c296",
   "nodeId": "77a96a97e274113fd4519b01fa968b5706f3d2b5e70fa7a4b6c2fa09a1c6cddeca837419ba4874767cb533601f3f601976f871bc1287c35aef24e10d47254481"
}

You can use the generated values to replace in the config file:

• <NODE_ID> with the generated nodeId
• <PRIVATE_KEY> with the generated privateKey

Other values that should be configured are:

• <DATABASE_PATH> should be replaced with the path to the directory where the database will be stored.
• <SOLC_PATH> should be replaced with the path to the Solidity Compiler binary. If you don't have it installed, you can point to a dummy executable file (example: /bin/false).

When everything is configured, you can run the node by executing:

$ java -Drsk.conf.file=<PATH-TO-THE-CONFIG-FILE> -cp <PATH-TO-THE-RSKJ-FATJAR> co.rsk.Start 

• Replace <PATH-TO-THE-CONFIG-FILE> with your path to the config file. As an example: C:/RskjCode/rsk-sample.conf
• Replace <PATH-TO-THE-RSKJ-FATJAR> with your path to the jar file. As an example: C:/RskjCode/rskj-core-0.4.1-BAMBOO-all.jar

Any problems?

We hope our Troubleshooting section can help you!