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First example invoking Claude v2
Co-authored-by: Dennis Traub <traubd@amazon.de>
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‎.gitignore‎

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target/
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!.mvn/wrapper/maven-wrapper.jar
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!**/src/main/**/target/
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!**/src/test/**/target/
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# Compiled class file
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*.class
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# Log file
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*.log
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# BlueJ files
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*.ctxt
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# Mobile Tools for Java (J2ME)
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.mtj.tmp/
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# Package Files #
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*.jar
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*.war
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*.nar
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*.ear
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*.zip
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*.tar.gz
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*.rar
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# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
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hs_err_pid*
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replay_pid*
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### IntelliJ IDEA ###
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.idea/modules.xml
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.idea/jarRepositories.xml
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.idea/compiler.xml
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.idea/libraries/
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*.iws
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*.iml
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*.ipr
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### Eclipse ###
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.apt_generated
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.classpath
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.factorypath
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.project
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.settings
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.springBeans
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.sts4-cache
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### NetBeans ###
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/nbproject/private/
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/nbbuild/
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/dist/
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/nbdist/
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/.nb-gradle/
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build/
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!**/src/main/**/build/
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!**/src/test/**/build/
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### VS Code ###
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.vscode/*
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!.vscode/settings.json
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!.vscode/tasks.json
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!.vscode/launch.json
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!.vscode/extensions.json
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!.vscode/*.code-snippets
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.history/
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*.vsix
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### Mac OS ###
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.DS_Store

‎README.md‎

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## My Project
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# Amazon Bedrock Java Examples
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TODO: Fill this README out!
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This repository contains examples using the AWS SDK for Java to help you get started with the Amazon Bedrock service.
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Be sure to:
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## Contributing
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* Change the title in this README
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* Edit your repository description on GitHub
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We welcome community contributions! Please see [CONTRIBUTING.md](CONTRIBUTING.md) for guidelines.
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## Security
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See [CONTRIBUTING](CONTRIBUTING.md#security-issue-notifications) for more information.
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## License
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This library is licensed under the MIT-0 License. See the LICENSE file.
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This library is licensed under the MIT-0 License. See the [LICENSE](LICENSE) file.

‎pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>aws.community.examples</groupId>
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<artifactId>Bedrock</artifactId>
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<version>0.1</version>
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<properties>
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<maven.compiler.source>11</maven.compiler.source>
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<maven.compiler.target>11</maven.compiler.target>
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</properties>
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<dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>software.amazon.awssdk</groupId>
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<artifactId>bom</artifactId>
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<version>2.20.157</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>software.amazon.awssdk</groupId>
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<artifactId>bedrockruntime</artifactId>
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<version>2.20.157</version>
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</dependency>
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<dependency>
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<groupId>software.amazon.awssdk</groupId>
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<artifactId>sts</artifactId>
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<version>2.20.157</version>
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</dependency>
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<dependency>
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<groupId>org.json</groupId>
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<artifactId>json</artifactId>
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<version>20230618</version>
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</dependency>
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</dependencies>
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</project>

‎src/main/java/aws/community/examples/InvokeBedrock.java‎

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package aws.community.examples;
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import java.nio.charset.StandardCharsets;
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import org.json.JSONObject;
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import software.amazon.awssdk.auth.credentials.ProfileCredentialsProvider;
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import software.amazon.awssdk.core.SdkBytes;
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import software.amazon.awssdk.regions.Region;
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import software.amazon.awssdk.services.bedrockruntime.BedrockRuntimeClient;
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import software.amazon.awssdk.services.bedrockruntime.model.InvokeModelRequest;
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import software.amazon.awssdk.services.bedrockruntime.model.InvokeModelResponse;
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public class InvokeBedrock {
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public static void main(String[] args) {
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BedrockRuntimeClient runtime = BedrockRuntimeClient.builder()
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.region(Region.US_EAST_1)
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.credentialsProvider(ProfileCredentialsProvider.create())
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.build();
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String prompt = "Generate a list of names for a fun brand of chili sauce";
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JSONObject jsonBody = new JSONObject()
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.put("prompt", "Human: " + prompt + " Assistant:")
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.put("temperature", 0.8)
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.put("max_tokens_to_sample", 1024);
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SdkBytes body = SdkBytes.fromUtf8String(
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jsonBody.toString()
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);
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InvokeModelRequest request = InvokeModelRequest.builder()
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.modelId("anthropic.claude-v1")
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.body(body)
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.build();
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InvokeModelResponse response = runtime.invokeModel(request);
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JSONObject jsonObject = new JSONObject(
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response.body().asString(StandardCharsets.UTF_8)
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);
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String completion = jsonObject.getString("completion");
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System.out.println("-------------------------------------");
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System.out.println(completion);
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}
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}

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