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Auto-set server.transport in Transport#initialize

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## Motivation and Context

Transport subclasses (StreamableHTTPTransport, StdioTransport) already
receive the server in their constructor, but users must manually call
`server.transport = transport` after creating a transport instance.
This is boilerplate that can be eliminated by setting the connection
automatically in `Transport#initialize`.

## How Has This Been Tested?

All existing tests pass. Redundant `server.transport = transport` lines
were removed from tests, examples, README.md, and conformance server.

## Breaking Changes

None. Existing code that manually sets `server.transport = transport`
continues to work (idempotent assignment).
This commit is contained in:
Koichi ITO 2026-04-08 22:25:50 +09:00
commit de38804ed7
1 changed files with 10 additions and 36 deletions
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4
README.md
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@ -126,7 +126,6 @@ class McpController < ActionController::API
)
# Since the `MCP-Session-Id` is not shared across requests, `stateless: true` is set.
transport = MCP::Server::Transports::StreamableHTTPTransport.new(server, stateless: true)
server.transport = transport
status, headers, body = transport.handle_request(request)
render(json: body.first, status: status, headers: headers)
@ -1120,7 +1119,6 @@ For more details, see the [MCP Logging specification](https://modelcontextprotoc
```ruby
server = MCP::Server.new(name: "my_server")
transport = MCP::Server::Transports::StdioTransport.new(server)
server.transport = transport
# The client first configures the logging level (on the client side):
transport.send_request(
@ -1174,8 +1172,6 @@ server = MCP::Server.new(name: "my_server")
# Default Streamable HTTP - session oriented
transport = MCP::Server::Transports::StreamableHTTPTransport.new(server)
server.transport = transport
# When tools change, notify clients
server.define_tool(name: "new_tool") { |**args| { result: "ok" } }
server.notify_tools_list_changed