Get the Last JSON-RPC Response from an MCP Server

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Demonstrates Mcp.GetLastJsonData, which returns the complete JSON-RPC response envelope (the jsonrpc, id, and result members) from the most recent request into a JsonObject.

Tip: Code to parse the returned JSON can be generated with Chilkat's online tool at https://tools.chilkat.io/jsonParse.

IncludeFile "CkJsonObject.pb"
IncludeFile "CkMcp.pb"

Procedure ChilkatExample()

    success.i = 0

    mcp.i = CkMcp::ckCreate()
    If mcp.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ;  Connect to a public MCP (Model Context Protocol) server over its Streamable HTTP endpoint.  The
    ;  Microsoft Learn MCP server is public and requires no authentication.
    success = CkMcp::ckConnect(mcp,"https://learn.microsoft.com/api/mcp")
    If success = 0
        Debug CkMcp::ckLastErrorText(mcp)
        CkMcp::ckDispose(mcp)
        ProcedureReturn
    EndIf

    ;  Perform an MCP request.
    toolsResult.i = CkJsonObject::ckCreate()
    If toolsResult.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success = CkMcp::ckListTools(mcp,toolsResult)
    If success = 0
        Debug CkMcp::ckLastErrorText(mcp)
        CkMcp::ckDispose(mcp)
        CkJsonObject::ckDispose(toolsResult)
        ProcedureReturn
    EndIf

    ;  Get the complete JSON-RPC response envelope (the jsonrpc, id, and result members) from the most
    ;  recent request.
    json.i = CkJsonObject::ckCreate()
    If json.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkMcp::ckGetLastJsonData(mcp,json)

    CkJsonObject::setCkEmitCompact(json, 0)
    Debug CkJsonObject::ckEmit(json)
    ;  JSON parsing code for this result can be generated at Chilkat's online tool:
    ;  https://tools.chilkat.io/jsonParse


    CkMcp::ckDispose(mcp)
    CkJsonObject::ckDispose(toolsResult)
    CkJsonObject::ckDispose(json)


    ProcedureReturn
EndProcedure