92 lines
3.3 KiB
C++
92 lines
3.3 KiB
C++
/**
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* @file client_example.cpp
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* @brief Example of an MCP client implementation
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*
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* This file demonstrates how to create an MCP client that connects to a server.
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* Follows the 2024-11-05 basic protocol specification.
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*/
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#include "mcp_client.h"
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#include <iostream>
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#include <string>
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int main() {
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// Create a client
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mcp::client client("localhost", 8080);
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// Set capabilites
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mcp::json capabilities = {
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{"roots", {{"listChanged", true}}}
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};
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client.set_capabilities(capabilities);
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// Set timeout
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client.set_timeout(10);
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try {
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// Initialize the connection
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std::cout << "Initializing connection to MCP server..." << std::endl;
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bool initialized = client.initialize("ExampleClient", mcp::MCP_VERSION);
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if (!initialized) {
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std::cerr << "Failed to initialize connection to server" << std::endl;
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return 1;
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}
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// Get server capabilities
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std::cout << "Getting server capabilities..." << std::endl;
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mcp::json capabilities = client.get_server_capabilities();
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std::cout << "Server capabilities: " << capabilities.dump(4) << std::endl;
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// Get available tools
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std::cout << "\nGetting available tools..." << std::endl;
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auto tools = client.get_tools();
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std::cout << "Available tools:" << std::endl;
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for (const auto& tool : tools) {
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std::cout << "- " << tool.name << ": " << tool.description << std::endl;
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}
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// Call the get_time tool
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std::cout << "\nCalling get_time tool..." << std::endl;
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mcp::json time_result = client.call_tool("get_time");
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std::cout << "Current time: " << time_result["current_time"].get<std::string>() << std::endl;
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// Call the echo tool
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std::cout << "\nCalling echo tool..." << std::endl;
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mcp::json echo_params = {
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{"text", "Hello, MCP!"},
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{"uppercase", true}
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};
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mcp::json echo_result = client.call_tool("echo", echo_params);
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std::cout << "Echo result: " << echo_result["text"].get<std::string>() << std::endl;
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// Call the calculator tool
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std::cout << "\nCalling calculator tool..." << std::endl;
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mcp::json calc_params = {
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{"operation", "add"},
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{"a", 10},
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{"b", 5}
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};
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mcp::json calc_result = client.call_tool("calculator", calc_params);
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std::cout << "10 + 5 = " << calc_result["result"].get<double>() << std::endl;
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// Access a resource
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std::cout << "\nAccessing API resource..." << std::endl;
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mcp::json api_params = {
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{"endpoint", "hello"},
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{"name", "MCP Client"}
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};
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mcp::json api_result = client.access_resource("/api", api_params);
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std::cout << "API response: " << api_result["message"].get<std::string>() << std::endl;
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} catch (const mcp::mcp_exception& e) {
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std::cerr << "MCP error: " << e.what() << " (code: " << static_cast<int>(e.code()) << ")" << std::endl;
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return 1;
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} catch (const std::exception& e) {
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std::cerr << "Error: " << e.what() << std::endl;
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return 1;
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}
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std::cout << "\nClient example completed successfully" << std::endl;
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return 0;
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} |