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 <CkoMcp.h>
#import <CkoJsonObject.h>

BOOL success = NO;

CkoMcp *mcp = [[CkoMcp alloc] init];

//  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 == NO) {
    NSLog(@"%@",mcp.LastErrorText);
    return;
}

//  Perform an MCP request.
CkoJsonObject *toolsResult = [[CkoJsonObject alloc] init];
success = [mcp ListTools: toolsResult];
if (success == NO) {
    NSLog(@"%@",mcp.LastErrorText);
    return;
}

//  Get the complete JSON-RPC response envelope (the jsonrpc, id, and result members) from the most
//  recent request.
CkoJsonObject *json = [[CkoJsonObject alloc] init];
[mcp GetLastJsonData: json];

json.EmitCompact = NO;
NSLog(@"%@",[json Emit]);
//  JSON parsing code for this result can be generated at Chilkat's online tool:
//  https://tools.chilkat.io/jsonParse