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.

load ./chilkat.dll

set success 0

set mcp [new_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.
set success [CkMcp_Connect $mcp "https://learn.microsoft.com/api/mcp"]
if {$success == 0} then {
    puts [CkMcp_lastErrorText $mcp]
    delete_CkMcp $mcp
    exit
}

#  Perform an MCP request.
set toolsResult [new_CkJsonObject]

set success [CkMcp_ListTools $mcp $toolsResult]
if {$success == 0} then {
    puts [CkMcp_lastErrorText $mcp]
    delete_CkMcp $mcp
    delete_CkJsonObject $toolsResult
    exit
}

#  Get the complete JSON-RPC response envelope (the jsonrpc, id, and result members) from the most
#  recent request.
set json [new_CkJsonObject]

CkMcp_GetLastJsonData $mcp $json

CkJsonObject_put_EmitCompact $json 0
puts [CkJsonObject_emit $json]
#  JSON parsing code for this result can be generated at Chilkat's online tool:
#  https://tools.chilkat.io/jsonParse

delete_CkMcp $mcp
delete_CkJsonObject $toolsResult
delete_CkJsonObject $json