Get the Last JSON-RPC Response from an MCP Server

See more MCP Client Examples

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.

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    var mcp = new chilkat.Mcp();

    //  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 = mcp.Connect("https://learn.microsoft.com/api/mcp");
    if (success == false) {
        console.log(mcp.LastErrorText);
        return;
    }

    //  Perform an MCP request.
    var toolsResult = new chilkat.JsonObject();
    success = mcp.ListTools(toolsResult);
    if (success == false) {
        console.log(mcp.LastErrorText);
        return;
    }

    //  Get the complete JSON-RPC response envelope (the jsonrpc, id, and result members) from the most
    //  recent request.
    var json = new chilkat.JsonObject();
    mcp.GetLastJsonData(json);

    json.EmitCompact = false;
    console.log(json.Emit());
    //  JSON parsing code for this result can be generated at Chilkat's online tool:
    //  https://tools.chilkat.io/jsonParse

}

chilkatExample();