tronj

Tronj is a lightweight SDK that includes libraries for working with TRON system contracts and smart contracts.

Tronj makes it easy to build TRON applications with java.

Tronj document: https://tronjdocument.readthedocs.io/en/latest/

How to use

Gradle Setting

Add repo setting:

repositories {
    maven {
        url  "https://dl.bintray.com/tronj/tronj"
    }
}

Then add required packages as dependencies.

dependencies {
    // protobuf & grpc
    implementation 'com.google.protobuf:protobuf-java:3.11.0'

    implementation 'org.tron.tronj:abi:0.1.2'
    implementation 'org.tron.tronj:client:0.1.2'
    implementation 'org.tron.tronj:utils:0.1.2'

    implementation 'com.google.guava:guava:28.0-jre'
}

Maven Settings

<dependency>
  <groupId>org.tron.tronj</groupId>
  <artifactId>abi</artifactId>
  <version>0.1.2</version>
  <type>pom</type>
</dependency>
<dependency>
  <groupId>org.tron.tronj</groupId>
  <artifactId>utils</artifactId>
  <version>0.1.2</version>
  <type>pom</type>
</dependency>
<dependency>
  <groupId>org.tron.tronj</groupId>
  <artifactId>client</artifactId>
  <version>0.1.2</version>
  <type>pom</type>
</dependency>

Signature Verification

Package signature files are uploaded together with .jar files. Packages are signed with GnuPG.

Install GPG

brew install gnupg

Get the Public Key

gpg --keyserver keyserver.ubuntu.com --recv-key AD0876A4

Alternatively, you may import the public manually from below:

-----BEGIN PGP PUBLIC KEY BLOCK-----

mQGNBF/XiOcBDADUYu9eTQSN9RT86/oMdlEcC4euVrfO+GSXdimJlwXfjJJRYVPy
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l9TVGU9BIJQRm03UEK/oF9k9sEZrFgiMe9357p+JAeI4WXtCJMg/G6dRDR1YZlpz
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AQABiQG8BBgBCAAmFiEEdsGCweEmn0lMIxX+qCXY1ui0kBYFAl/XiOcCGwwFCQPC
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Wvh6Yw6q48n00CAUIut2yWOn0C27YKXQv1G0vmvbjsVP9OxK0VQnZd648Bm8U98o
g/mQ6FNOVMzFjRk4iWrPl9ExL6RYfw2O+ZeIPTuXngxLJ8erX9i3lclacsiIj74W
XKGcDnvCACJdJd8DWbiY8OQiNfONye44WD1lTr6f+y3swhnryIl9Hk2Vb1xofWre
hjMZIEg6d5XYFLRf1iaVG+TD
=OjmN
-----END PGP PUBLIC KEY BLOCK-----

Verify Packages

Download package and the corresponding .asc file, take abi as an example:

gpg --verify abi-0.1.2.jar.asc abi-0.1.2.jar

gpg: Signature made Mon Dec 28 11:51:48 2020 CST
gpg:                using RSA key 76C182C1E1269F494C2315FEA825D8D6E8B49016
gpg: Good signature from "tronj <tronjsdk@gmail.com>" [ultimate]