DataFlex

Automatic JavaScript AI Tool Returning a Number

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Demonstrates an automatic JavaScript tool function that returns a number. Automatic JavaScript tool calls are characterized by:

• Tool function implementations are in JavaScript.
• The JavaScript also provides a tool registry and permissions.
• The JavaScript runs embedded within your application using Chilkat.Js.
• Tool calls are handled entirely within Chilkat. Your application does not need to manually check for function calls in the AI response. Internal to the Ask function, Chilkat will handle function calls by calling your registered JavaScript tools and will send results back to the AI model until the final response is received.

DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Variant vSbJs
    Handle hoSbJs
    Handle hoAi
    Boolean iEvalOnly
    Boolean iAllowAllKeyword
    String sConversation_name
    String sSysMessage
    String sDevMessage
    Variant vSbResponse
    Handle hoSbResponse
    String sTemp1

    Move False To iSuccess

    // ----------------------------------------------------------------------------------
    // The Javascript file loaded here is shown at the bottom of this page.
    // -----------------------------------------------------------------------------------

    // In this example, we'll load the Javascript tool functions and registry from a file.
    // It doesn't need to come from a file.  It could just as easily be loaded from a string.
    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbJs
    If (Not(IsComObjectCreated(hoSbJs))) Begin
        Send CreateComObject of hoSbJs
    End
    Get ComLoadFile Of hoSbJs "qa_data/js_tools/toolset_3.js" "utf-8" To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoSbJs To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get Create (RefClass(cComChilkatAi)) To hoAi
    If (Not(IsComObjectCreated(hoAi))) Begin
        Send CreateComObject of hoAi
    End

    // Register the tools that will be made available to the AI.
    Move False To iEvalOnly
    Move True To iAllowAllKeyword
    Get pvComObject of hoSbJs to vSbJs
    Get ComRegisterJsTools Of hoAi vSbJs iEvalOnly iAllowAllKeyword To iSuccess

    // The provider can be "openai", "google", "claude", "grok", "mistral", "custom", etc.
    Set ComProvider Of hoAi To "openai"
    // Use your provider's API key.
    Set ComApiKey Of hoAi To "MY_API_KEY"
    // Choose a model.
    Set ComModel Of hoAi To "gpt-5-mini"

    // Tool function calling must always occur within a conversation.
    Move "convo_4" To sConversation_name
    Move "You are a helpful business assistant" To sSysMessage
    Move "Respond only with a information generated by a tool." To sDevMessage
    Get ComNewConvo Of hoAi sConversation_name sSysMessage sDevMessage To iSuccess

    // Provide inputs
    Get ComInputAddText Of hoAi "What is the total for order A123?" To iSuccess

    // Send inputs, tool functions, etc. and ask for a "text" response.
    // If the AI responds with tool calls, Chilkat automatically handles them by calling your JavaScript
    // tool functions as directed by the AI, and sending results back to the AI until the final
    // response is received.
    Get ComAsk Of hoAi "text" To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoAi To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Get the AI response.
    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbResponse
    If (Not(IsComObjectCreated(hoSbResponse))) Begin
        Send CreateComObject of hoSbResponse
    End
    Get pvComObject of hoSbResponse to vSbResponse
    Get ComGetOutputTextSb Of hoAi vSbResponse To iSuccess
    Get ComGetAsString Of hoSbResponse To sTemp1
    Showln sTemp1


End_Procedure