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.

import 'package:chilkat/chilkat.dart';

void main() {
  final mcp = CkMcp();

  // 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.
  try {
    mcp.connect('https://learn.microsoft.com/api/mcp');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Perform an MCP request.
  final toolsResult = CkJsonObject();
  try {
    mcp.listTools(toolsResult);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Get the complete JSON-RPC response envelope (the jsonrpc, id, and result members) from the most
  // recent request.
  final json = CkJsonObject();
  mcp.getLastJsonData(json);

  json.emitCompact = false;
  print(json.emit());
  // JSON parsing code for this result can be generated at Chilkat's online tool:
  // https://tools.chilkat.io/jsonParse
}