Request for Feedback

[aaron-lerner]

👋 Hi everyone!

This SDK is in alpha, and we are actively iterating on its design and making improvements. We would love to hear your thoughts and feedback!

As you try the new SDK, please share your thoughts and feedback. We'll be actively monitoring discussion threads and new issues.

Thanks in advance! We hope to make a Java SDK you'll love using.

[sgflt]

#30 (comment)

Thank you for exmaples. I've been able to find method visit, that I have overlooked. It would be nice to provide example for tool usage :).

I have produced some looping code that fullfils my flow:

• Grab data and tools and throw them at Claude
• Invoke tools if Claude wants and send back results
• Return final JSON response for further automatic processing

public String askClaude(final String system, final String body) {
    final var messageBuilder = createConversation(system, body);
    var response = this.client.messages().create(messageBuilder.build());
    boolean doLoop = true;
    while (doLoop) {
      final var previousResponse = response;
      messageBuilder.addMessage(previousResponse);

      final var newResponse = response.content().stream()
          .map(content -> content.accept(new ContentBlock.Visitor<Message>() {

            @Override
            public Message visitTextBlock(@NotNull final TextBlock textBlock) {
              return null; // end of looping
            }


            @Override
            public Message visitToolUseBlock(@NotNull final ToolUseBlock toolUseBlock) {
              messageBuilder.addMessage(
                  MessageParam.builder()
                      .role(MessageParam.Role.USER)
                      .content(
                          MessageParam.Content.ofContentBlockParams(
                              List.of(
                                  ContentBlockParam.ofToolResultBlockParam(
                                      ToolResultBlockParam.builder()
                                          .type(ToolResultBlockParam.Type.TOOL_RESULT)
                                          .toolUseId(toolUseBlock.id())
                                          .content(executeToolUse(toolUseBlock))
                                          .build()
                                  )
                              )
                          )
                      )
                      .build()
              );
              return SyncRequestClient.this.client.messages().create(messageBuilder.build());
            }
          }))
          .filter(Objects::nonNull)
          .findFirst()
          .orElse(null);

      // kind of heuristic ending
      doLoop = newResponse != null;
      if (newResponse != null) {
        response = newResponse;
      }
    }

    return response.content()
        .stream()
        .flatMap(contentBlock -> contentBlock.textBlock().stream())
        .map(TextBlock::text)
        .collect(Collectors.joining());
  }