Decode resource template parameters

[andriy-dmytruk]

Expected Behavior

Suppose I have the following definition:

    @ResourceTemplate(
            uriTemplate = "book://book/{title}",
            mimeType = "text/plain",
            name = "book",
            title = "Library Book Description",
            description = "Provide description about a book"
    )
    String getBookDescription(String title) {
        return bookService.get(title)
                .orElseThrow(() -> new McpError(new McpSchema.JSONRPCResponse.JSONRPCError(
                        McpSchema.ErrorCodes.RESOURCE_NOT_FOUND,
                        "resource for title " + title + " not found",
                        null
                )));
    }

Title might contain spaces and therefore will be URL-encoded. The parameter needs to be provided in a URL-decoded format.

Actual Behaviour

I get the following error:

{
"error":
"MCP error -32001: Error POSTing to endpoint (HTTP 500): {"jsonrpc":"2.0","id":19,"error":{"code":-32002,"message":"resource for title A%20Tale%20of%20Two%20Cities not found"}}"
}

Steps To Reproduce

No response

Environment Information

No response

Example Application

No response

Version

0.0.12