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fix!: Migrate Ktor extension functions from Routing to Route (#237) (#531)

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# Migrate Ktor extension functions from `Routing` to `Route` (#237)

- Replaced `Routing` with `Route` in MCP-related functions for better
composability in nested contexts.
- Updated tests to verify compatibility with nested routes and subpaths.
- Deprecated legacy signatures and removed redundant overloads.

## How Has This Been Tested?
Unit test

## Breaking Changes
`Routing.mcp(...) `extension was replaced with `Route.mcp(...)`

## Types of changes

- [X] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [x] Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] Documentation update

## Checklist
<!-- Go over all the following points, and put an `x` in all the boxes
that apply. -->
- [x] I have read the [MCP
Documentation](https://modelcontextprotocol.io)
- [x] My code follows the repository's style guidelines
- [ ] New and existing tests pass locally
- [ ] I have added appropriate error handling
- [ ] I have added or updated documentation as needed

## Additional context
Based on #314 by @IainHull but that PR is too outdated.
This commit is contained in:
Konstantin Pavlov 2026-02-18 16:43:37 +02:00 • committed by GitHub
commit bb79e200c4
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2
kotlin-sdk-server/Module.md
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@ -12,7 +12,7 @@ that make it straightforward to expose tools, prompts, and resources to MCP clie
listeners emit list-changed notifications when the capability is enabled.
- **Transports**: Ready-to-use transports for STDIO (CLI-style hosting), Ktor Server-Sent Events (SSE) with POST
back-channel, and Ktor WebSocket. All share the common `Transport` abstraction from the SDK.
- **Ktor integration**: Extension functions (`Routing.mcp`, `Routing.mcpWebSocket`, and `Application` variants) that
- **Ktor integration**: Extension functions (`Route.mcp`, `Route.mcpWebSocket`, and `Application` variants) that
plug MCP into an existing Ktor server with minimal boilerplate.
- **Notifications**: Built-in support for resource subscription, resource-updated events, and feature list change
notifications when capabilities are set accordingly.