Read a Resource from an MCP Server

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Demonstrates Mcp.ReadResource, which calls the MCP resources/read method for a resource identified by URI and places the contents into a JsonObject.

Tip: Code to parse the returned JSON can be generated with Chilkat's online tool at https://tools.chilkat.io/jsonParse.

let mcp = chilkat::Mcp::new();

// 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.
if mcp.connect("https://learn.microsoft.com/api/mcp").is_err() {
    println!("{}", mcp.last_error_text());
    return;
}

// Read a specific resource by its URI.  A resource URI is obtained from the "resources" array
// returned by ListResources.  The resource contents are placed in the JsonObject.
let json = chilkat::JsonObject::new();
if mcp.read_resource("file:///example/resource.txt", &json).is_err() {
    println!("{}", mcp.last_error_text());
    return;
}

json.set_emit_compact(false);
println!("{}", json.emit().unwrap_or_default());
// JSON parsing code for this result can be generated at Chilkat's online tool:
// https://tools.chilkat.io/jsonParse