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Any method to match and handle the resource by dynamic uri path? #100
Description
For example,I have 1000000 resource item stored in my database,and I'd like to match them by the uri like "document://index-A/index-B/index-C",it will be convenient to match them like "document://{index-A}/{index-B}/{index-C}" in a handler,and then use a select query to return the matched data item
I saw the ResourceTemplate class in sdk,but I couldn't see any method to match a template and handle them - McpServer have a method named "addResource" but doesn't have a method named "addResourceTemplate",ResourceTemplate seems just an "instruction" to client,and not used to handle parameterized uri
Maybe try to run a loop of 1000000 times calling addResource method to register them is not acceptable,and surely that will lose the significance of database,or I did not find the correct way to handle the ResourceTemplate?
As other sdk implement,Python and TypeScript SDKs seem support this feature:
# Add a dynamic greeting resource
@mcp.resource("greeting://{name}")
def get_greeting(name: str) -> str:
"""Get a personalized greeting"""
return f"Hello, {name}!"// Dynamic resource with parameters
server.resource(
"user-profile",
new ResourceTemplate("users://{userId}/profile", { list: undefined }),
async (uri, { userId }) => ({
contents: [{
uri: uri.href,
text: `Profile data for user ${userId}`
}]
})
);
Activity
Smileslime47 commentedon Apr 2, 2025
okay,I saw the PR about this feature which hasn't been merged
seems I couldn't develop my mcp server in a short time :(
arcaputo3 commentedon Apr 11, 2025
This seems like a critical feature and it isn't well-documented that this isn't supported yet...
benken-parasoft commentedon Jul 9, 2025
Using the solution from #208, registering resource templates enables the server to return that list back to clients who query "resources/templates/list". In terms of handling dynamic resources, I see that I can register a resource with the same parameterized URI. I can then add whatever code I want in my "readHandler" method for returning the dynamic content.
I suspect #25 may not be merged as it seems to take a contradictory approach but who knows?
Smileslime47 commentedon Jul 10, 2025
#208 seems resolved the problem,but now I use mcp's tool_call to implement the api of resource query,as it is compatible to general tool_call,and I needn't to do any works to let the agent know the format difference between tool_call and resource_query